3v4l.org

run code in 300+ PHP versions simultaneously
<?php $all_pages = array( 'home' => 'Home', 'about' => 'About us', 'gallery' => array( 'photo-gallery' => 'Photo Gallery', 'video-gallery' => 'Video Gallery' ), 'contact' => 'Contact us' ); $new = []; array_walk_recursive($all_pages, function($value, $key) use (&$new) { $new[$key] = $value; }); print_r($new);
Output for 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 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Array ( [home] => Home [about] => About us [photo-gallery] => Photo Gallery [video-gallery] => Video Gallery [contact] => Contact us )
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
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174.6 ms | 407 KiB | 5 Q