PHP Exception Handling and Error Reporting Logging fatal errors
Example
In PHP, a fatal error is a kind of error that cannot be caught, that is, after experiencing a fatal error a program does not resume. However, to log this error or somehow handle the crash you can use register_shutdown_function to register shutdown handler.
function fatalErrorHandler() {
// Let's get last error that was fatal.
$error = error_get_last();
// This is error-only handler for example purposes; no error means that
// there were no error and shutdown was proper. Also ensure it will handle
// only fatal errors.
if (null === $error || E_ERROR != $error['type']) {
return;
}
// Log last error to a log file.
// let's naively assume that logs are in the folder inside the app folder.
$logFile = fopen("./app/logs/error.log", "a+");
// Get useful info out of error.
$type = $error["type"];
$file = $error["file"];
$line = $error["line"];
$message = $error["message"]
fprintf(
$logFile,
"[%s] %s: %s in %s:%d\n",
date("Y-m-d H:i:s"),
$type,
$message,
$file,
$line);
fclose($logFile);
}
register_shutdown_function('fatalErrorHandler');
Reference:
- http://php.net/manual/en/function.register-shutdown-function.php
- http://php.net/manual/en/function.error-get-last.php
- http://php.net/manual/en/errorfunc.constants.php
