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@ 2014-04-10T07:22:09Z

<?php

$valore = "300,01";
$numchar = 5;

$s = str_replace(".", "", sprintf("%0".$numchar."f", $valore));
echo $s;

Output
Performance
VLD
References
Branches

str_replace: documentation ( source)
sprintf: documentation ( source)

preferences:dark modelive preview

45.48 ms | 402 KiB | 5 Q