3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('foo', 'bar', 'baz'); foreach ($array as $key => $value) { echo "$key: $value" . PHP_EOL; }
Output for 4.3.10 - 4.3.11, 4.4.0 - 4.4.9, 5.0.2 - 5.0.5, 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 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 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
0: foo 1: bar 2: baz
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/hpGgH on line 4 0: fooPHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/hpGgH on line 4 1: barPHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/hpGgH on line 4 2: bazPHP_EOL
preferences:
236.06 ms | 402 KiB | 350 Q