3v4l.org

run code in 300+ PHP versions simultaneously
<?php function autoload1($class) { echo "1: $class\n"; if ( $class === 'Foo' ) { require '/tmp/autoload1Foo.php'; } } function autoload2($class) { echo "2: $class\n"; require "/tmp/autoload2$class.php"; } file_put_contents( '/tmp/autoload1Foo.php', '<?php class Foo {}' ); file_put_contents( '/tmp/autoload2Bar.php', '<?php class Bar {}' ); spl_autoload_register( 'autoload1' ); spl_autoload_register( 'autoload2' ); $a = new Foo; $b = new Bar;
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 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
1: Foo 1: Bar 2: Bar
Output for 5.0.0 - 5.0.5
Fatal error: Call to undefined function spl_autoload_register() in /in/phBUL on line 18
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: file_put_contents() in /in/phBUL on line 16
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: file_put_contents() in /in/phBUL on line 16
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: file_put_contents() in /in/phBUL on line 16
preferences:
370.09 ms | 401 KiB | 468 Q