3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 1; function test1() { $var = 2; echo $var . "<br />"; } test1(); echo $var . "<br />"; echo "<hr />"; $var = 1; function test2() { global $var; $var = 2; echo $var . "<br />"; } test2(); echo $var . "<br />"; echo "<hr />"; $var = 1; function test3() { static $var = 2; echo $var . "<br />"; $var++; } test3(); test3(); test3(); echo $var . "<br />"; ?>
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, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 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
2<br />1<br /><hr />2<br />2<br /><hr />2<br />3<br />4<br />1<br />
preferences:
216.55 ms | 406 KiB | 313 Q