3v4l.org

run code in 300+ PHP versions simultaneously
<?php $_array = array( 'X-Powered-By: PHP/5.6.7', 'Expires: Thu, 19 Nov 1981 08:52:00 GMT', 'Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0', 'Pragma: no-cache', 'X-MW360-Cache-Expires: 1430494628', 'Content-type: text/html; charset=UTF-8' ); var_dump( strpos(implode('&', $_array), 'X-MW360-Cache-Expires') );
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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 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 - 8.3.4, 8.3.6
int(158)
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 int(158)
preferences:
303.7 ms | 402 KiB | 459 Q