This will remove all non-integer characters, including commas and currency symbols. The output is a float.
$float = floatval(preg_replace('/[^\d\.]/', '', '$100.25')); // 100.25
This will remove all non-integer characters, including commas and currency symbols. The output is a float.
$float = floatval(preg_replace('/[^\d\.]/', '', '$100.25')); // 100.25