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$value) { if (is_array($value)) { $log_a .= "\r\n'" . $key . "' => [\r\n" . array2string($value) . "\r\n],"; } else { $log_a .= "'" . $key . "'" . ' => ' . "'" . str_replace("'", "\\'", $value) . "',\r\n"; } } return $log_a; } } if (! function_exists('xss_clean')) { function xss_clean($data) { // Fix &entity\n; $data = str_replace(['&', '<', '>'], ['&', '<', '>'], $data); $data = preg_replace('/(*\w+)[\x00-\x20]+;/u', '$1;', $data); $data = preg_replace('/(*[0-9A-F]+);*/iu', '$1;', $data); $data = html_entity_decode($data, ENT_COMPAT, 'UTF-8'); // Remove any attribute starting with "on" or xmlns $data = preg_replace('#(<[^>]+?[\x00-\x20"\'])(?:on|xmlns)[^>]*+>#iu', '$1>', $data); // Remove javascript: and vbscript: protocols $data = preg_replace('#([a-z]*)[\x00-\x20]*=[\x00-\x20]*([`\'"]*)[\x00-\x20]*j[\x00-\x20]*a[\x00-\x20]*v[\x00-\x20]*a[\x00-\x20]*s[\x00-\x20]*c[\x00-\x20]*r[\x00-\x20]*i[\x00-\x20]*p[\x00-\x20]*t[\x00-\x20]*:#iu', '$1=$2nojavascript...', $data); $data = preg_replace('#([a-z]*)[\x00-\x20]*=([\'"]*)[\x00-\x20]*v[\x00-\x20]*b[\x00-\x20]*s[\x00-\x20]*c[\x00-\x20]*r[\x00-\x20]*i[\x00-\x20]*p[\x00-\x20]*t[\x00-\x20]*:#iu', '$1=$2novbscript...', $data); $data = preg_replace('#([a-z]*)[\x00-\x20]*=([\'"]*)[\x00-\x20]*-moz-binding[\x00-\x20]*:#u', '$1=$2nomozbinding...', $data); // Only works in IE:
$data = preg_replace('#(<[^>]+?)style[\x00-\x20]*=[\x00-\x20]*[`\'"]*.*?expression[\x00-\x20]*\([^>]*+>#i', '$1>', $data); $data = preg_replace('#(<[^>]+?)style[\x00-\x20]*=[\x00-\x20]*[`\'"]*.*?behaviour[\x00-\x20]*\([^>]*+>#i', '$1>', $data); $data = preg_replace('#(<[^>]+?)style[\x00-\x20]*=[\x00-\x20]*[`\'"]*.*?s[\x00-\x20]*c[\x00-\x20]*r[\x00-\x20]*i[\x00-\x20]*p[\x00-\x20]*t[\x00-\x20]*:*[^>]*+>#iu', '$1>', $data); // Remove namespaced elements (we do not need them) $data = preg_replace('#*\w+:\w[^>]*+>#i', '', $data); do { // Remove really unwanted tags $old_data = $data; $data = preg_replace('#*(?:applet|b(?:ase|gsound|link)|embed|frame(?:set)?|i(?:frame|layer)|l(?:ayer|ink)|meta|object|s(?:cript|tyle)|title|xml)[^>]*+>#i', '', $data); } while ($old_data !== $data); return $data; } } if (! function_exists('sanitize_output')) { function sanitize_output($value, int $strip = 0) { $value = htmlspecialchars($value, ENT_QUOTES); if ($strip == 1) { $string = stripslashes($value); } $value = str_replace('&#', '', $value); return $value; } } if (! function_exists('formatText')) { function formatText($string, $doSlash = true) { $string = str_replace(["'", "\r\n"], ['`', '\\r\\n'], $string); if ($doSlash) { $string = addslashes($string); } return $string; } } if (! function_exists('stripBeforeSave')) { /** * stripBeforeSave method * This function strips or skips HTML tags * * @param string $string [The text that will be stripped] * @param array $options * @return string */ function stripBeforeSave($string = null, $options = ['skipAllTags' => true, 'mergeTags' => false]) { $finalString = []; if ($options['skipAllTags'] === false) { $allow = '