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@ 2014-04-10T07:35:28Z

<?php

$valore = '300000.01';
$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

38.17 ms | 402 KiB | 5 Q