3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a1 = ['hello ? world', 'replace me ?']; $a2 = [123, 456]; echo var_export(array_map(function ($a, $b) { return str_replace('?', $b, $a); }, $a1, $a2));
Output for 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 - 8.3.6
array ( 0 => 'hello 123 world', 1 => 'replace me 456', )
preferences:
175.79 ms | 403 KiB | 212 Q