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PHP: Include vs. Require
Both are used to include external file to the script.
Include
When the file we are trying to include does not exist or the permission is incorrect, this will give you a warning and continue the script.
<?php include 'something.php'; echo 'test'; => Warning: include_once(something.php): Failed to open stream: No such file or directory in /var/www/html/include.php on line 3 => test
Require
When the file we are trying to include does not exist or the permission is incorrect, this will give you a warning, throw an Error, and terminate the script.
<?php
require 'something.php';
echo 'test';
=> Fatal error: Uncaught Error: Failed opening required 'something.php' (include_path='.:/usr/local/lib/php') in /var/www/html/require.php:3
=> Stack trace:
=> #0 {main}
=> thrown in /var/www/html/require.php on line 3Error Handling
For warning suppresion we can set the runtime configuration with:
<?php // show nothing error_reporting(0); // show everything error_reporting(-1);
For error suppresion, we catch the exception with try-catch block:
<?php
try {
require 'require.php';
}
catch (Error $e) {
echo $e->getMessage();
}References:
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