3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = "PostgreSQL"; $y = "MySQL"; $z = &$x; $x = 'PHP 5'; $y = &$x; echo $x, $y, $z; echo $GLOBALS['x'], $GLOBALS['y'], $GLOBALS['z'];
Output for git.master, git.master_jit, rfc.property-hooks
PHP 5PHP 5PHP 5PHP 5PHP 5PHP 5

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