3v4l.org

run code in 300+ PHP versions simultaneously
<?php $page_access = array( 'index' => array('1', '2', '3'), 'users' => array('4', '5', '6') ); function level_access($page){ global $page_access; if (array_key_exists($page, $page_access)) { echo "yes"; } else { echo "no"; } } level_access('index'); echo "\n"; function level_access2($page){ global $page_access; if (isset($page_access[$page])) { echo "yes"; } else { echo "no"; } } level_access2('index');
Output for 5.6.38, 7.1.0 - 7.1.25, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
yes yes
preferences:
151.76 ms | 407 KiB | 5 Q