3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test1($unset = false) { // PHP establishes an internal static var and binds // the local name 'bar' to it static $bar = 5; $bar++; echo $bar . " "; // unlink the name 'bar' from the internal static var unset($bar); $bar = " | "; echo $bar; static $bar = 10; $bar++; echo $bar . " "; } test1(); test1(); test1(); test1();
Output for 8.3.0 - 8.3.6
Fatal error: Duplicate declaration of static variable $bar in /in/23oBR on line 20
Process exited with code 255.
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
11 | 12 13 | 14 15 | 16 17 | 18
preferences:
219.15 ms | 406 KiB | 312 Q