* Name: escape
* Purpose: escape string for output
*
* @link http://smarty.php.net/manual/en/language.modifier.count.characters.php count_characters (Smarty online manual)
* @author Monte Ohrt
* @param string $string input string
* @param string $esc_type escape type
* @param string $char_set character set
* @return string escaped input string
*/
function smarty_modifier_escape($string, $esc_type = 'html', $char_set = SMARTY_RESOURCE_CHAR_SET)
{
if (!function_exists('mb_str_replace')) {
// simulate the missing PHP mb_str_replace function
function mb_str_replace($needles, $replacements, $haystack)
{
$rep = (array)$replacements;
foreach ((array)$needles as $key => $needle) {
$replacement = $rep[$key];
$needle_len = mb_strlen($needle);
$replacement_len = mb_strlen($replacement);
$pos = mb_strpos($haystack, $needle, 0);
while ($pos !== false) {
$haystack = mb_substr($haystack, 0, $pos) . $replacement
. mb_substr($haystack, $pos + $needle_len);
$pos = mb_strpos($haystack, $needle, $pos + $replacement_len);
}
}
return $haystack;
}
}
switch ($esc_type) {
case 'html':
return htmlspecialchars($string, ENT_QUOTES, $char_set);
case 'htmlall':
return htmlentities($string, ENT_QUOTES, $char_set);
case 'url':
return rawurlencode($string);
case 'urlpathinfo':
return str_replace('%2F', '/', rawurlencode($string));
case 'quotes':
// escape unescaped single quotes
return preg_replace("%(? '\\\\', "'" => "\\'", '"' => '\\"', "\r" => '\\r', "\n" => '\\n', ' '<\/'));
case 'mail':
// safe way to display e-mail address on a web page
if (function_exists('mb_substr')) {
return mb_str_replace(array('@', '.'), array(' [AT] ', ' [DOT] '), $string);
} else {
return str_replace(array('@', '.'), array(' [AT] ', ' [DOT] '), $string);
}
case 'nonstd':
// escape non-standard chars, such as ms document quotes
$_res = '';
for($_i = 0, $_len = strlen($string); $_i < $_len; $_i++) {
$_ord = ord(substr($string, $_i, 1));
// non-standard char, escape it
if ($_ord >= 126) {
$_res .= '&#' . $_ord . ';';
} else {
$_res .= substr($string, $_i, 1);
}
}
return $_res;
default:
return $string;
}
}
?>