Online PHP editor | output for FYhhM

<?php /* * php error handler / suppressed deprecation notices * @link https://stackoverflow.com/a/74791189/367456 */ // don't have E_DEPRECATED in reporting on @3v4l.org error_reporting(error_reporting() ^ E_DEPRECATED); // no interest in arguments ini_set('zend.exception_ignore_args', '1'); /* track */ new Deprecations; $mixed = null; $string = @trim($mixed); $html = @htmlspecialchars($mixed, ENT_QUOTES | ENT_HTML5); $forgotten = trim($mixed); class Deprecations { public function __construct($handler = true, $reporter = true) { $reporter && register_shutdown_function(static function () use (&$deprecations) { // stream collected deprecations as JavaScript Object Notation (JSON) Text Sequences on the SAPI diagnostic channel // shutdown handling could condense repeated reports etc. as could the error handler. example material, there must // be no shutdown function at all. foreach ((array)$deprecations as $deprecation) { $error = $deprecation['error']; unset($deprecation['error']); is_object($error) && get_class($error) === ErrorException::class && $error = eval('return ' . substr(ltrim(var_export($error, true), '\\'), 27) . ';'); error_log("\x1E" . json_encode( ['E_DEPRECATED', [...array_values($deprecation), $error['trace'] ?? null]], JSON_UNESCAPED_SLASHES )); } error_log("\x1E"); }); $handler && set_error_handler(static function ($type, $message, $file, $line) use (&$deprecations) { // capture the currently active error reporting level to decide whether // reporting is active (throws) or not (standard PHP error handler) $reporting = error_reporting(); // capture backtraces, your mileage may vary: with many of them, // you may not be interested in the beginning (resource constraints!). $error = new ErrorException($message, $type, $reporting, $file, $line); // capture E_DEPRECATED if ($type === E_DEPRECATED) { $deprecations[] = ['deprecations' => count($deprecations ?: [])] + get_defined_vars(); } if (!($reporting & $type)) { // This error code is not included in error_reporting, so let it fall // through to the standard PHP error handler return false; } // throwing error handler, your mileage may vary, controlled by // error_reporting() / error_reporting (ini) throw $error; }, E_DEPRECATED); } }