54 lines
1.5 KiB
PHP
54 lines
1.5 KiB
PHP
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<?php
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namespace WillySoft\Http;
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/**
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* Captures errors and exceptions thrown by your application and renders them to the user
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*/
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abstract class ErrorHandler
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{
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/**
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* Array of strings containing HTML error and exception messages
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*/
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private static array $error_messages = [];
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/**
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* Start capturing output to be replaced, set error and exception handlers and register shutdown function.
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*
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* On capturing an error or exception the callback will be called with an array of strings containing HTML error
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* messages as an argument.
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*/
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public static function register(callable $callback)
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{
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ob_start();
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set_error_handler(self::error(...));
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set_exception_handler(self::exception(...));
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register_shutdown_function(self::shutdown(...), $callback);
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}
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private static function error($errno, $errstr, $errfile, $errline)
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{
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$errstr = htmlspecialchars($errstr);
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self::$error_messages[] = "<b>Error[$errno]:</b> $errstr in <b>$errfile</b> at line <b>$errline</b>";
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}
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private static function exception($exception)
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{
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self::$error_messages[] = "<b>Uncaught Exception:</b> " . $exception;
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}
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private static function shutdown(callable $callback)
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{
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if (!self::$error_messages) {
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return;
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}
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// remove current output to be replaced by error page
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ob_end_clean();
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http_response_code(500);
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header_remove();
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$callback(self::$error_messages);
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}
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}
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