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@ 2016-01-18T10:22:08Z

<?php

$argv[1] = "-00010.1";

if('-'==($_=$argv[1])[0])$s=1||$_[0]=0;
echo strlen(explode('.',$t=trim($_=$argv[1],0))[1]).($_!==$t?' '.$s?'-':''.(float)$t:'');
exit;

Output
Performance
VLD
References
Branches

explode: documentation ( source)
trim: documentation ( source)

preferences:dark modelive preview

42.2 ms | 402 KiB | 5 Q