Online PHP editor | output for Ri9hB

@ 2013-11-07T11:50:39Z

<?php
error_reporting(E_ALL);

echo 'Here is __DIR__ to start: ' . "\n";
var_dump(__DIR__);

echo "\n\n";

echo 'Checking if __DIR__ is defined...' . "\n";
if (!defined('__DIR__')) {
	echo 'Nope, defined() returned (bool)false.' . "\n";

	echo 'No prob. Executing define(\'__DIR__\', \'/foo/bar\')...' . "\n";
	define('__DIR__', '/foo/bar');

	echo 'Done, defined __DIR__ as "/foo/bar".' . "\n" . "\n";

	echo 'Double-checking __DIR__ is defined now...' . "\n";

	if (!defined('__DIR__')) {		
		echo 'WTF, defined(\'__DIR__\') again returned (bool)false?!' . "\n";
	} else{
		echo 'Strike, this time defined(\'__DIR__\') returned (bool)true.' . "\n";
	}
} else{
	echo 'Yep, defined(\'__DIR__\') returned (bool)true.' . "\n";
}

echo 'Finally, here is the result of var_dump(__DIR__):' . "\n";
var_dump(__DIR__);

Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Here is __DIR__ to start: string(3) "/in" Checking if __DIR__ is defined... Nope, defined() returned (bool)false. No prob. Executing define('__DIR__', '/foo/bar')... Done, defined __DIR__ as "/foo/bar". Double-checking __DIR__ is defined now... Strike, this time defined('__DIR__') returned (bool)true. Finally, here is the result of var_dump(__DIR__): string(3) "/in"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Here is __DIR__ to start: Notice: Use of undefined constant __DIR__ - assumed '__DIR__' in /in/Ri9hB on line 5 string(7) "__DIR__" Checking if __DIR__ is defined... Nope, defined() returned (bool)false. No prob. Executing define('__DIR__', '/foo/bar')... Done, defined __DIR__ as "/foo/bar". Double-checking __DIR__ is defined now... Strike, this time defined('__DIR__') returned (bool)true. Finally, here is the result of var_dump(__DIR__): string(8) "/foo/bar"

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