1: <?php
  2: 
  3: /**
  4:  * This file contains fix functions for PHP 5.4 support (encoding related).
  5:  *
  6:  * @package Core
  7:  * @subpackage Backend
  8:  * @author Dominik Ziegler
  9:  * @author Timo Trautmann
 10:  * @copyright four for business AG <www.4fb.de>
 11:  * @license http://www.contenido.org/license/LIZENZ.txt
 12:  * @link http://www.4fb.de
 13:  * @link http://www.contenido.org
 14:  */
 15: 
 16: defined('CON_FRAMEWORK') || die('Illegal call: Missing framework initialization - request aborted.');
 17: 
 18: if (function_exists('conPhp54Check') == false) {
 19: 
 20:     /**
 21:      * Checks if at least PHP 5.4.0 is available. If so 1 is returned,
 22:      * 0 otherwise. The check is only performed once and stored as
 23:      * constant CON_PHP54.
 24:      *
 25:      * @return int
 26:      */
 27:     function conPhp54Check() {
 28:         if (!defined('CON_PHP54')) {
 29:             define('CON_PHP54', version_compare(PHP_VERSION, '5.4.0', '<') ? 0 : 1);
 30:         }
 31: 
 32:         return CON_PHP54;
 33:     }
 34: 
 35: }
 36: 
 37: if (function_exists('conHtmlSpecialChars') == false) {
 38: 
 39:     /**
 40:      *
 41:      * @param string $value
 42:      * @param int|string $flags
 43:      * @param string $encoding
 44:      * @return string
 45:      */
 46:     function conHtmlSpecialChars($value, $flags = '', $encoding = '') {
 47:         $isPhp54 = conPhp54Check();
 48: 
 49:         if ($encoding == '') {
 50:             $encoding = cRegistry::getEncoding();
 51:         }
 52: 
 53:         // consider case that encoding could not be determined
 54:         if (empty($encoding)) {
 55:             $encoding = null;
 56:         }
 57: 
 58:         if ($isPhp54 == 1) {
 59:             $flags = ($flags == '') ? ENT_COMPAT | ENT_HTML401 : $flags;
 60:             $encoding = ($encoding == '') ? 'UTF-8' : $encoding;
 61:         } else {
 62:             $flags = ($flags == '') ? ENT_COMPAT : $flags;
 63:         }
 64: 
 65:         return htmlspecialchars($value, $flags, $encoding);
 66:     }
 67: 
 68: }
 69: 
 70: if (function_exists('conHtmlEntityDecode') == false) {
 71: 
 72:     /**
 73:      *
 74:      * @param string $value
 75:      * @param int|string $flags
 76:      * @param string $encoding
 77:      * @return string
 78:      */
 79:     function conHtmlEntityDecode($value, $flags = '', $encoding = '') {
 80:         $isPhp54 = conPhp54Check();
 81: 
 82:         if ($encoding == '') {
 83:             $encoding = cRegistry::getEncoding();
 84:         }
 85: 
 86:         if ($isPhp54 == 1) {
 87:             $flags = ($flags == '') ? ENT_COMPAT | ENT_HTML401 : $flags;
 88:             $encoding = ($encoding == '') ? 'UTF-8' : $encoding;
 89:         } else {
 90:             $flags = ($flags == '') ? ENT_COMPAT : $flags;
 91:         }
 92: 
 93:         return html_entity_decode($value, $flags, $encoding);
 94:     }
 95: 
 96: }
 97: 
 98: if (function_exists('conHtmlentities') == false) {
 99: 
100:     /**
101:      *
102:      * @param string $value
103:      * @param int|string $flags
104:      * @param string $encoding
105:      * @return string
106:      */
107:     function conHtmlentities($value, $flags = '', $encoding = '') {
108:         $isPhp54 = conPhp54Check();
109: 
110:         if ($encoding == '') {
111:             $encoding = cRegistry::getEncoding();
112:         }
113: 
114:         if ($isPhp54 == 1) {
115:             $flags = ($flags == '') ? ENT_COMPAT | ENT_HTML401 : $flags;
116:             $encoding = ($encoding == '') ? 'UTF-8' : $encoding;
117:         } else {
118:             $flags = ($flags == '') ? ENT_COMPAT : $flags;
119:         }
120: 
121:         return htmlentities($value, $flags, $encoding);
122:     }
123: 
124: }
125: 
126: if (function_exists('conGetHtmlTranslationTable') == false) {
127:     /**
128:      *
129:      * @param string $table
130:      * @param string $flags
131:      *
132:      * @return array
133:      */
134:     function conGetHtmlTranslationTable($table = '', $flags = '') {
135:         $isPhp54 = conPhp54Check();
136: 
137:         if ($isPhp54 == 1) {
138:             $table = ($table == '') ? HTML_SPECIALCHARS : $table;
139:             $flags = ($flags == '') ? ENT_COMPAT | ENT_HTML401 : $flags;
140:         } else {
141:             $flags = ($flags == '') ? ENT_COMPAT : $flags;
142:         }
143: 
144:         return get_html_translation_table($table, $flags);
145:     }
146: 
147: }
148: