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@ 2015-09-17T22:13:47Z

<?php

$cnpj = '358.439.648-41';
// $num = str_split(preg_replace('/[^0-9]/', '', $cnpj));

$j = 0;
    for ($i = 0; $i < (strlen($cnpj)); $i++) {
      if (is_numeric($cnpj[$i])) {
        $num[$j] = $cnpj[$i];
        $j++;
      }
    }

var_dump($num);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
is_numeric: documentation ( source)

preferences:dark modelive preview

57.84 ms | 402 KiB | 5 Q