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misc/smarty_libs/plugins/shared.escape_special_chars.php

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+<?php
+/**
+ * Smarty shared plugin
+ *
+ * @package    Smarty
+ * @subpackage PluginsShared
+ */
+
+/**
+ * escape_special_chars common function
+ * Function: smarty_function_escape_special_chars<br>
+ * Purpose:  used by other smarty functions to escape
+ *           special chars except for already escaped ones
+ *
+ * @author   Monte Ohrt <monte at ohrt dot com>
+ *
+ * @param  string $string text that should by escaped
+ *
+ * @return string
+ */
+function smarty_function_escape_special_chars($string)
+{
+    if (!is_array($string)) {
+        if (version_compare(PHP_VERSION, '5.2.3', '>=')) {
+            $string = htmlspecialchars($string, ENT_COMPAT, Smarty::$_CHARSET, false);
+        } else {
+            $string = preg_replace('!&(#?\w+);!', '%%%SMARTY_START%%%\\1%%%SMARTY_END%%%', $string);
+            $string = htmlspecialchars($string);
+            $string = str_replace(array('%%%SMARTY_START%%%', '%%%SMARTY_END%%%'), array('&', ';'), $string);
+        }
+    }
+
+    return $string;
+}