- var_dump: documentation ( source)
- is_numeric: documentation ( source)
- md5: documentation ( source)
<?php
for ($i = 48; $i < 9999; $i++)
{
$hash = md5("preved$i");
if (is_numeric($hash))
{
echo "$i $hash ";
var_dump(is_numeric($hash));
echo "\n";
break;
}
}