How to catch error of require() or include() in PHP?

You can accomplish this by using set_error_handler in conjunction with ErrorException.

The example from the ErrorException page is:

<?phpfunction exception_error_handler($errno, $errstr, $errfile, $errline ) {    throw new ErrorException($errstr, $errno, 0, $errfile, $errline);}set_error_handler("exception_error_handler");/* Trigger exception */strpos();?>

Once you have errors being handled as exceptions you can do something like:

<?phptry {    include 'fileERROR.php5';} catch (ErrorException $ex) {    echo "Unable to load configuration file.";    // you can exit or die here if you prefer - also you can log your error,    // or any other steps you wish to take}?>

I just use 'file_exists()':

if (file_exists("must_have.php")) {    require "must_have.php";}else {    echo "Please try back in five minutes...\n";}

A better approach would be to use realpath on the path first. realpath will return false if the file does not exist.

$filename = realpath(getcwd() . "/fileERROR.php5");$filename && return require($filename);trigger_error("Could not find file {$filename}", E_USER_ERROR);

You could even create your own require function in your app's namespace that wraps PHP's require function

namespace app;function require_safe($filename) {  $path = realpath(getcwd() . $filename);  $path && return require($path);  trigger_error("Could not find file {$path}", E_USER_ERROR);}

Now you can use it anywhere in your files

namespace app;require_safe("fileERROR.php5");