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@ 2013-12-10T22:45:35Z

<?php


function cast($val, $c) { 
    echo $val;
    if (is_numeric($val)) { 
        return $val + 0; 
    }

    //return 0;
    return $val;
} 

$arr = ['stri33ng123', 84, 76.7, '45.6', '67.5e45', '56,9'];


array_walk($arr , 'cast');

Output
Performance
VLD
References
Branches

is_numeric: documentation ( source)
array_walk: documentation ( source)

preferences:dark modelive preview

40.02 ms | 402 KiB | 5 Q