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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 git.master, git.master_jit, rfc.property-hooks
array ( 0 => 'hello 123 world', 1 => 'replace me 456', )

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