* Name: escape
* Purpose: Escape the string according to escapement type
* @link http://smarty.php.net/manual/en/language.modifier.escape.php
* escape (Smarty online manual)
* @author Monte Ohrt
* @param html|htmlall|url|quotes|hex|hexentity|javascript
* @param string $esc_type
* @param string $char_set
* @param bool $double_encode
* @return string
*/
function smarty_modifier_escape($string, $esc_type = 'html', $char_set = 'UTF-8', $double_encode = true)
{
switch ($esc_type) {
case 'html':
if (is_array($string)) {
$string = implode(',', $string);
}
$return = htmlspecialchars($string ?? '', ENT_QUOTES, $char_set, $double_encode);
// Convert back sanitization tags into real tags to avoid them to be displayed
$return = str_replace('<x>', '', $return);
// Convert back sanitization tags into real tags for no wrap space
$return = str_replace(' ', ' ', $return);
return $return;
case 'htmlall':
$return = htmlentities($string ?? '', ENT_QUOTES, $char_set);
if (! strlen($return) && strlen($string)) { // Bug php when there is non utf8 characters in the string(http://bugs.php.net/bug.php?id=43549, http://bugs.php.net/bug.php?id=43294)
$return = htmlentities($string, ENT_QUOTES);
}
// Convert back sanitization tags into real tags to avoid them to be displayed
$return = str_replace('<x>', '', $return);
return $return;
case 'url':
return rawurlencode($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
return str_replace(['@', '.'], [' [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 $_res;
case 'unescape':
return rawurldecode($string);
case 'attr':
$esc = new Laminas\Escaper\Escaper();
return $esc->escapeHtmlAttr((string) $string);
default:
return $string;
}
}