691 lines
20 KiB
PHP
691 lines
20 KiB
PHP
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<?php
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/**
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* String handling methods.
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package Cake.Utility
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* @since CakePHP(tm) v 1.2.0.5551
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* @license http://www.opensource.org/licenses/mit-license.php MIT License
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*/
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/**
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* String handling methods.
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*
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*
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* @package Cake.Utility
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*/
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class String {
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/**
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* Generate a random UUID
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*
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* @see http://www.ietf.org/rfc/rfc4122.txt
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* @return RFC 4122 UUID
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*/
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public static function uuid() {
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$node = env('SERVER_ADDR');
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if (strpos($node, ':') !== false) {
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if (substr_count($node, '::')) {
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$node = str_replace(
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'::', str_repeat(':0000', 8 - substr_count($node, ':')) . ':', $node
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);
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}
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$node = explode(':', $node);
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$ipSix = '';
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foreach ($node as $id) {
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$ipSix .= str_pad(base_convert($id, 16, 2), 16, 0, STR_PAD_LEFT);
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}
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$node = base_convert($ipSix, 2, 10);
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if (strlen($node) < 38) {
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$node = null;
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} else {
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$node = crc32($node);
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}
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} elseif (empty($node)) {
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$host = env('HOSTNAME');
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if (empty($host)) {
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$host = env('HOST');
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}
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if (!empty($host)) {
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$ip = gethostbyname($host);
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if ($ip === $host) {
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$node = crc32($host);
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} else {
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$node = ip2long($ip);
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}
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}
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} elseif ($node !== '127.0.0.1') {
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$node = ip2long($node);
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} else {
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$node = null;
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}
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if (empty($node)) {
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$node = crc32(Configure::read('Security.salt'));
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}
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if (function_exists('hphp_get_thread_id')) {
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$pid = hphp_get_thread_id();
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} elseif (function_exists('zend_thread_id')) {
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$pid = zend_thread_id();
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} else {
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$pid = getmypid();
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}
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if (!$pid || $pid > 65535) {
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$pid = mt_rand(0, 0xfff) | 0x4000;
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}
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list($timeMid, $timeLow) = explode(' ', microtime());
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return sprintf(
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"%08x-%04x-%04x-%02x%02x-%04x%08x", (int)$timeLow, (int)substr($timeMid, 2) & 0xffff,
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mt_rand(0, 0xfff) | 0x4000, mt_rand(0, 0x3f) | 0x80, mt_rand(0, 0xff), $pid, $node
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);
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}
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/**
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* Tokenizes a string using $separator, ignoring any instance of $separator that appears between
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* $leftBound and $rightBound
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*
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* @param string $data The data to tokenize
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* @param string $separator The token to split the data on.
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* @param string $leftBound The left boundary to ignore separators in.
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* @param string $rightBound The right boundary to ignore separators in.
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* @return mixed Array of tokens in $data or original input if empty.
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*/
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public static function tokenize($data, $separator = ',', $leftBound = '(', $rightBound = ')') {
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if (empty($data) || is_array($data)) {
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return $data;
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}
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$depth = 0;
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$offset = 0;
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$buffer = '';
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$results = array();
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$length = strlen($data);
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$open = false;
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while ($offset <= $length) {
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$tmpOffset = -1;
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$offsets = array(
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strpos($data, $separator, $offset),
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strpos($data, $leftBound, $offset),
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strpos($data, $rightBound, $offset)
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);
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for ($i = 0; $i < 3; $i++) {
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if ($offsets[$i] !== false && ($offsets[$i] < $tmpOffset || $tmpOffset == -1)) {
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$tmpOffset = $offsets[$i];
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}
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}
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if ($tmpOffset !== -1) {
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$buffer .= substr($data, $offset, ($tmpOffset - $offset));
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if (!$depth && $data{$tmpOffset} == $separator) {
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$results[] = $buffer;
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$buffer = '';
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} else {
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$buffer .= $data{$tmpOffset};
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}
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if ($leftBound != $rightBound) {
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if ($data{$tmpOffset} == $leftBound) {
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$depth++;
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}
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if ($data{$tmpOffset} == $rightBound) {
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$depth--;
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}
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} else {
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if ($data{$tmpOffset} == $leftBound) {
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if (!$open) {
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$depth++;
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$open = true;
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} else {
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$depth--;
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}
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}
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}
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$offset = ++$tmpOffset;
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} else {
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$results[] = $buffer . substr($data, $offset);
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$offset = $length + 1;
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}
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}
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if (empty($results) && !empty($buffer)) {
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$results[] = $buffer;
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}
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if (!empty($results)) {
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return array_map('trim', $results);
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}
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return array();
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}
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/**
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* Replaces variable placeholders inside a $str with any given $data. Each key in the $data array
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* corresponds to a variable placeholder name in $str.
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* Example: `String::insert(':name is :age years old.', array('name' => 'Bob', '65'));`
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* Returns: Bob is 65 years old.
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*
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* Available $options are:
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*
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* - before: The character or string in front of the name of the variable placeholder (Defaults to `:`)
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* - after: The character or string after the name of the variable placeholder (Defaults to null)
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* - escape: The character or string used to escape the before character / string (Defaults to `\`)
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* - format: A regex to use for matching variable placeholders. Default is: `/(?<!\\)\:%s/`
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* (Overwrites before, after, breaks escape / clean)
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* - clean: A boolean or array with instructions for String::cleanInsert
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*
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* @param string $str A string containing variable placeholders
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* @param array $data A key => val array where each key stands for a placeholder variable name
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* to be replaced with val
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* @param array $options An array of options, see description above
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* @return string
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*/
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public static function insert($str, $data, $options = array()) {
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$defaults = array(
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'before' => ':', 'after' => null, 'escape' => '\\', 'format' => null, 'clean' => false
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);
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$options += $defaults;
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$format = $options['format'];
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$data = (array)$data;
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if (empty($data)) {
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return ($options['clean']) ? String::cleanInsert($str, $options) : $str;
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}
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if (!isset($format)) {
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$format = sprintf(
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'/(?<!%s)%s%%s%s/',
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preg_quote($options['escape'], '/'),
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str_replace('%', '%%', preg_quote($options['before'], '/')),
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str_replace('%', '%%', preg_quote($options['after'], '/'))
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);
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}
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if (strpos($str, '?') !== false && is_numeric(key($data))) {
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$offset = 0;
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while (($pos = strpos($str, '?', $offset)) !== false) {
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$val = array_shift($data);
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$offset = $pos + strlen($val);
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$str = substr_replace($str, $val, $pos, 1);
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}
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return ($options['clean']) ? String::cleanInsert($str, $options) : $str;
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}
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asort($data);
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$dataKeys = array_keys($data);
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$hashKeys = array_map('crc32', $dataKeys);
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$tempData = array_combine($dataKeys, $hashKeys);
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krsort($tempData);
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foreach ($tempData as $key => $hashVal) {
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$key = sprintf($format, preg_quote($key, '/'));
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$str = preg_replace($key, $hashVal, $str);
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}
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$dataReplacements = array_combine($hashKeys, array_values($data));
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foreach ($dataReplacements as $tmpHash => $tmpValue) {
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$tmpValue = (is_array($tmpValue)) ? '' : $tmpValue;
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$str = str_replace($tmpHash, $tmpValue, $str);
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}
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if (!isset($options['format']) && isset($options['before'])) {
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$str = str_replace($options['escape'] . $options['before'], $options['before'], $str);
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}
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return ($options['clean']) ? String::cleanInsert($str, $options) : $str;
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}
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/**
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* Cleans up a String::insert() formatted string with given $options depending on the 'clean' key in
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* $options. The default method used is text but html is also available. The goal of this function
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* is to replace all whitespace and unneeded markup around placeholders that did not get replaced
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* by String::insert().
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*
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* @param string $str
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* @param array $options
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* @return string
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* @see String::insert()
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*/
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public static function cleanInsert($str, $options) {
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$clean = $options['clean'];
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if (!$clean) {
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return $str;
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}
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if ($clean === true) {
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$clean = array('method' => 'text');
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}
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if (!is_array($clean)) {
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$clean = array('method' => $options['clean']);
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}
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switch ($clean['method']) {
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case 'html':
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$clean = array_merge(array(
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'word' => '[\w,.]+',
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'andText' => true,
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'replacement' => '',
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), $clean);
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$kleenex = sprintf(
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'/[\s]*[a-z]+=(")(%s%s%s[\s]*)+\\1/i',
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preg_quote($options['before'], '/'),
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$clean['word'],
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preg_quote($options['after'], '/')
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);
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$str = preg_replace($kleenex, $clean['replacement'], $str);
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if ($clean['andText']) {
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$options['clean'] = array('method' => 'text');
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$str = String::cleanInsert($str, $options);
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}
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break;
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case 'text':
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$clean = array_merge(array(
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'word' => '[\w,.]+',
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'gap' => '[\s]*(?:(?:and|or)[\s]*)?',
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'replacement' => '',
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), $clean);
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$kleenex = sprintf(
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'/(%s%s%s%s|%s%s%s%s)/',
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preg_quote($options['before'], '/'),
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$clean['word'],
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preg_quote($options['after'], '/'),
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$clean['gap'],
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$clean['gap'],
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preg_quote($options['before'], '/'),
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$clean['word'],
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preg_quote($options['after'], '/')
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);
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$str = preg_replace($kleenex, $clean['replacement'], $str);
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break;
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}
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return $str;
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}
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/**
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* Wraps text to a specific width, can optionally wrap at word breaks.
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*
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* ### Options
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*
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* - `width` The width to wrap to. Defaults to 72.
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* - `wordWrap` Only wrap on words breaks (spaces) Defaults to true.
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* - `indent` String to indent with. Defaults to null.
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* - `indentAt` 0 based index to start indenting at. Defaults to 0.
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*
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* @param string $text The text to format.
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* @param array|integer $options Array of options to use, or an integer to wrap the text to.
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* @return string Formatted text.
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*/
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public static function wrap($text, $options = array()) {
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if (is_numeric($options)) {
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$options = array('width' => $options);
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}
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$options += array('width' => 72, 'wordWrap' => true, 'indent' => null, 'indentAt' => 0);
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if ($options['wordWrap']) {
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$wrapped = self::wordWrap($text, $options['width'], "\n");
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} else {
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$wrapped = trim(chunk_split($text, $options['width'] - 1, "\n"));
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}
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if (!empty($options['indent'])) {
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$chunks = explode("\n", $wrapped);
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for ($i = $options['indentAt'], $len = count($chunks); $i < $len; $i++) {
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$chunks[$i] = $options['indent'] . $chunks[$i];
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}
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$wrapped = implode("\n", $chunks);
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}
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return $wrapped;
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}
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/**
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* Unicode aware version of wordwrap.
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*
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* @param string $text The text to format.
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* @param integer $width The width to wrap to. Defaults to 72.
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* @param string $break The line is broken using the optional break parameter. Defaults to '\n'.
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* @param boolean $cut If the cut is set to true, the string is always wrapped at the specified width.
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* @return string Formatted text.
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*/
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public static function wordWrap($text, $width = 72, $break = "\n", $cut = false) {
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if ($cut) {
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$parts = array();
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while (mb_strlen($text) > 0) {
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$part = mb_substr($text, 0, $width);
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$parts[] = trim($part);
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$text = trim(mb_substr($text, mb_strlen($part)));
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}
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return implode($break, $parts);
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|
}
|
||
|
|
|
||
|
|
$parts = array();
|
||
|
|
while (mb_strlen($text) > 0) {
|
||
|
|
if ($width >= mb_strlen($text)) {
|
||
|
|
$parts[] = trim($text);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
$part = mb_substr($text, 0, $width);
|
||
|
|
$nextChar = mb_substr($text, $width, 1);
|
||
|
|
if ($nextChar !== ' ') {
|
||
|
|
$breakAt = mb_strrpos($part, ' ');
|
||
|
|
if ($breakAt === false) {
|
||
|
|
$breakAt = mb_strpos($text, ' ', $width);
|
||
|
|
}
|
||
|
|
if ($breakAt === false) {
|
||
|
|
$parts[] = trim($text);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
$part = mb_substr($text, 0, $breakAt);
|
||
|
|
}
|
||
|
|
|
||
|
|
$part = trim($part);
|
||
|
|
$parts[] = $part;
|
||
|
|
$text = trim(mb_substr($text, mb_strlen($part)));
|
||
|
|
}
|
||
|
|
|
||
|
|
return implode($break, $parts);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Highlights a given phrase in a text. You can specify any expression in highlighter that
|
||
|
|
* may include the \1 expression to include the $phrase found.
|
||
|
|
*
|
||
|
|
* ### Options:
|
||
|
|
*
|
||
|
|
* - `format` The piece of html with that the phrase will be highlighted
|
||
|
|
* - `html` If true, will ignore any HTML tags, ensuring that only the correct text is highlighted
|
||
|
|
* - `regex` a custom regex rule that is used to match words, default is '|$tag|iu'
|
||
|
|
*
|
||
|
|
* @param string $text Text to search the phrase in
|
||
|
|
* @param string $phrase The phrase that will be searched
|
||
|
|
* @param array $options An array of html attributes and options.
|
||
|
|
* @return string The highlighted text
|
||
|
|
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/text.html#TextHelper::highlight
|
||
|
|
*/
|
||
|
|
public static function highlight($text, $phrase, $options = array()) {
|
||
|
|
if (empty($phrase)) {
|
||
|
|
return $text;
|
||
|
|
}
|
||
|
|
|
||
|
|
$default = array(
|
||
|
|
'format' => '<span class="highlight">\1</span>',
|
||
|
|
'html' => false,
|
||
|
|
'regex' => "|%s|iu"
|
||
|
|
);
|
||
|
|
$options = array_merge($default, $options);
|
||
|
|
extract($options);
|
||
|
|
|
||
|
|
if (is_array($phrase)) {
|
||
|
|
$replace = array();
|
||
|
|
$with = array();
|
||
|
|
|
||
|
|
foreach ($phrase as $key => $segment) {
|
||
|
|
$segment = '(' . preg_quote($segment, '|') . ')';
|
||
|
|
if ($html) {
|
||
|
|
$segment = "(?![^<]+>)$segment(?![^<]+>)";
|
||
|
|
}
|
||
|
|
|
||
|
|
$with[] = (is_array($format)) ? $format[$key] : $format;
|
||
|
|
$replace[] = sprintf($options['regex'], $segment);
|
||
|
|
}
|
||
|
|
|
||
|
|
return preg_replace($replace, $with, $text);
|
||
|
|
}
|
||
|
|
|
||
|
|
$phrase = '(' . preg_quote($phrase, '|') . ')';
|
||
|
|
if ($html) {
|
||
|
|
$phrase = "(?![^<]+>)$phrase(?![^<]+>)";
|
||
|
|
}
|
||
|
|
|
||
|
|
return preg_replace(sprintf($options['regex'], $phrase), $format, $text);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Strips given text of all links (<a href=....)
|
||
|
|
*
|
||
|
|
* @param string $text Text
|
||
|
|
* @return string The text without links
|
||
|
|
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/text.html#TextHelper::stripLinks
|
||
|
|
*/
|
||
|
|
public static function stripLinks($text) {
|
||
|
|
return preg_replace('|<a\s+[^>]+>|im', '', preg_replace('|<\/a>|im', '', $text));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Truncates text starting from the end.
|
||
|
|
*
|
||
|
|
* Cuts a string to the length of $length and replaces the first characters
|
||
|
|
* with the ellipsis if the text is longer than length.
|
||
|
|
*
|
||
|
|
* ### Options:
|
||
|
|
*
|
||
|
|
* - `ellipsis` Will be used as Beginning and prepended to the trimmed string
|
||
|
|
* - `exact` If false, $text will not be cut mid-word
|
||
|
|
*
|
||
|
|
* @param string $text String to truncate.
|
||
|
|
* @param integer $length Length of returned string, including ellipsis.
|
||
|
|
* @param array $options An array of options.
|
||
|
|
* @return string Trimmed string.
|
||
|
|
*/
|
||
|
|
public static function tail($text, $length = 100, $options = array()) {
|
||
|
|
$default = array(
|
||
|
|
'ellipsis' => '...', 'exact' => true
|
||
|
|
);
|
||
|
|
$options = array_merge($default, $options);
|
||
|
|
extract($options);
|
||
|
|
|
||
|
|
if (!function_exists('mb_strlen')) {
|
||
|
|
class_exists('Multibyte');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (mb_strlen($text) <= $length) {
|
||
|
|
return $text;
|
||
|
|
}
|
||
|
|
|
||
|
|
$truncate = mb_substr($text, mb_strlen($text) - $length + mb_strlen($ellipsis));
|
||
|
|
if (!$exact) {
|
||
|
|
$spacepos = mb_strpos($truncate, ' ');
|
||
|
|
$truncate = $spacepos === false ? '' : trim(mb_substr($truncate, $spacepos));
|
||
|
|
}
|
||
|
|
|
||
|
|
return $ellipsis . $truncate;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Truncates text.
|
||
|
|
*
|
||
|
|
* Cuts a string to the length of $length and replaces the last characters
|
||
|
|
* with the ellipsis if the text is longer than length.
|
||
|
|
*
|
||
|
|
* ### Options:
|
||
|
|
*
|
||
|
|
* - `ellipsis` Will be used as Ending and appended to the trimmed string (`ending` is deprecated)
|
||
|
|
* - `exact` If false, $text will not be cut mid-word
|
||
|
|
* - `html` If true, HTML tags would be handled correctly
|
||
|
|
*
|
||
|
|
* @param string $text String to truncate.
|
||
|
|
* @param integer $length Length of returned string, including ellipsis.
|
||
|
|
* @param array $options An array of html attributes and options.
|
||
|
|
* @return string Trimmed string.
|
||
|
|
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/text.html#TextHelper::truncate
|
||
|
|
*/
|
||
|
|
public static function truncate($text, $length = 100, $options = array()) {
|
||
|
|
$default = array(
|
||
|
|
'ellipsis' => '...', 'exact' => true, 'html' => false
|
||
|
|
);
|
||
|
|
if (isset($options['ending'])) {
|
||
|
|
$default['ellipsis'] = $options['ending'];
|
||
|
|
} elseif (!empty($options['html']) && Configure::read('App.encoding') === 'UTF-8') {
|
||
|
|
$default['ellipsis'] = "\xe2\x80\xa6";
|
||
|
|
}
|
||
|
|
$options = array_merge($default, $options);
|
||
|
|
extract($options);
|
||
|
|
|
||
|
|
if (!function_exists('mb_strlen')) {
|
||
|
|
class_exists('Multibyte');
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($html) {
|
||
|
|
if (mb_strlen(preg_replace('/<.*?>/', '', $text)) <= $length) {
|
||
|
|
return $text;
|
||
|
|
}
|
||
|
|
$totalLength = mb_strlen(strip_tags($ellipsis));
|
||
|
|
$openTags = array();
|
||
|
|
$truncate = '';
|
||
|
|
|
||
|
|
preg_match_all('/(<\/?([\w+]+)[^>]*>)?([^<>]*)/', $text, $tags, PREG_SET_ORDER);
|
||
|
|
foreach ($tags as $tag) {
|
||
|
|
if (!preg_match('/img|br|input|hr|area|base|basefont|col|frame|isindex|link|meta|param/s', $tag[2])) {
|
||
|
|
if (preg_match('/<[\w]+[^>]*>/s', $tag[0])) {
|
||
|
|
array_unshift($openTags, $tag[2]);
|
||
|
|
} elseif (preg_match('/<\/([\w]+)[^>]*>/s', $tag[0], $closeTag)) {
|
||
|
|
$pos = array_search($closeTag[1], $openTags);
|
||
|
|
if ($pos !== false) {
|
||
|
|
array_splice($openTags, $pos, 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$truncate .= $tag[1];
|
||
|
|
|
||
|
|
$contentLength = mb_strlen(preg_replace('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|&#x[0-9a-f]{1,6};/i', ' ', $tag[3]));
|
||
|
|
if ($contentLength + $totalLength > $length) {
|
||
|
|
$left = $length - $totalLength;
|
||
|
|
$entitiesLength = 0;
|
||
|
|
if (preg_match_all('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|&#x[0-9a-f]{1,6};/i', $tag[3], $entities, PREG_OFFSET_CAPTURE)) {
|
||
|
|
foreach ($entities[0] as $entity) {
|
||
|
|
if ($entity[1] + 1 - $entitiesLength <= $left) {
|
||
|
|
$left--;
|
||
|
|
$entitiesLength += mb_strlen($entity[0]);
|
||
|
|
} else {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$truncate .= mb_substr($tag[3], 0, $left + $entitiesLength);
|
||
|
|
break;
|
||
|
|
} else {
|
||
|
|
$truncate .= $tag[3];
|
||
|
|
$totalLength += $contentLength;
|
||
|
|
}
|
||
|
|
if ($totalLength >= $length) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (mb_strlen($text) <= $length) {
|
||
|
|
return $text;
|
||
|
|
}
|
||
|
|
$truncate = mb_substr($text, 0, $length - mb_strlen($ellipsis));
|
||
|
|
}
|
||
|
|
if (!$exact) {
|
||
|
|
$spacepos = mb_strrpos($truncate, ' ');
|
||
|
|
if ($html) {
|
||
|
|
$truncateCheck = mb_substr($truncate, 0, $spacepos);
|
||
|
|
$lastOpenTag = mb_strrpos($truncateCheck, '<');
|
||
|
|
$lastCloseTag = mb_strrpos($truncateCheck, '>');
|
||
|
|
if ($lastOpenTag > $lastCloseTag) {
|
||
|
|
preg_match_all('/<[\w]+[^>]*>/s', $truncate, $lastTagMatches);
|
||
|
|
$lastTag = array_pop($lastTagMatches[0]);
|
||
|
|
$spacepos = mb_strrpos($truncate, $lastTag) + mb_strlen($lastTag);
|
||
|
|
}
|
||
|
|
$bits = mb_substr($truncate, $spacepos);
|
||
|
|
preg_match_all('/<\/([a-z]+)>/', $bits, $droppedTags, PREG_SET_ORDER);
|
||
|
|
if (!empty($droppedTags)) {
|
||
|
|
if (!empty($openTags)) {
|
||
|
|
foreach ($droppedTags as $closingTag) {
|
||
|
|
if (!in_array($closingTag[1], $openTags)) {
|
||
|
|
array_unshift($openTags, $closingTag[1]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
foreach ($droppedTags as $closingTag) {
|
||
|
|
$openTags[] = $closingTag[1];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$truncate = mb_substr($truncate, 0, $spacepos);
|
||
|
|
}
|
||
|
|
$truncate .= $ellipsis;
|
||
|
|
|
||
|
|
if ($html) {
|
||
|
|
foreach ($openTags as $tag) {
|
||
|
|
$truncate .= '</' . $tag . '>';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $truncate;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Extracts an excerpt from the text surrounding the phrase with a number of characters on each side
|
||
|
|
* determined by radius.
|
||
|
|
*
|
||
|
|
* @param string $text String to search the phrase in
|
||
|
|
* @param string $phrase Phrase that will be searched for
|
||
|
|
* @param integer $radius The amount of characters that will be returned on each side of the founded phrase
|
||
|
|
* @param string $ellipsis Ending that will be appended
|
||
|
|
* @return string Modified string
|
||
|
|
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/text.html#TextHelper::excerpt
|
||
|
|
*/
|
||
|
|
public static function excerpt($text, $phrase, $radius = 100, $ellipsis = '...') {
|
||
|
|
if (empty($text) || empty($phrase)) {
|
||
|
|
return self::truncate($text, $radius * 2, array('ellipsis' => $ellipsis));
|
||
|
|
}
|
||
|
|
|
||
|
|
$append = $prepend = $ellipsis;
|
||
|
|
|
||
|
|
$phraseLen = mb_strlen($phrase);
|
||
|
|
$textLen = mb_strlen($text);
|
||
|
|
|
||
|
|
$pos = mb_strpos(mb_strtolower($text), mb_strtolower($phrase));
|
||
|
|
if ($pos === false) {
|
||
|
|
return mb_substr($text, 0, $radius) . $ellipsis;
|
||
|
|
}
|
||
|
|
|
||
|
|
$startPos = $pos - $radius;
|
||
|
|
if ($startPos <= 0) {
|
||
|
|
$startPos = 0;
|
||
|
|
$prepend = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
$endPos = $pos + $phraseLen + $radius;
|
||
|
|
if ($endPos >= $textLen) {
|
||
|
|
$endPos = $textLen;
|
||
|
|
$append = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
$excerpt = mb_substr($text, $startPos, $endPos - $startPos);
|
||
|
|
$excerpt = $prepend . $excerpt . $append;
|
||
|
|
|
||
|
|
return $excerpt;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates a comma separated list where the last two items are joined with 'and', forming natural English
|
||
|
|
*
|
||
|
|
* @param array $list The list to be joined
|
||
|
|
* @param string $and The word used to join the last and second last items together with. Defaults to 'and'
|
||
|
|
* @param string $separator The separator used to join all the other items together. Defaults to ', '
|
||
|
|
* @return string The glued together string.
|
||
|
|
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/text.html#TextHelper::toList
|
||
|
|
*/
|
||
|
|
public static function toList($list, $and = 'and', $separator = ', ') {
|
||
|
|
if (count($list) > 1) {
|
||
|
|
return implode($separator, array_slice($list, null, -1)) . ' ' . $and . ' ' . array_pop($list);
|
||
|
|
}
|
||
|
|
|
||
|
|
return array_pop($list);
|
||
|
|
}
|
||
|
|
}
|