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@ 2021-05-12T17:07:52Z

<?php

$greet = function($name) use (&$greet)
{
    printf("Hello %s\r\n", $name);
    if($name != 'PHP')
    {
        $greet('PHP');
    }
};

$greet('World');

Output
Performance
VLD
References
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printf: documentation ( source)

preferences:dark modelive previewkey bindings

174.9 ms | 476 KiB | 5 Q