JString::strspn

UTF-8 aware alternative to strspn Find length of initial segment matching mask

Signature

public function strspn(string
        $str,
            [string
        $mask = null,
            [integer
        $start = null,
            [integer
        $length = null]]] )

Parameters

$str: The haystack
$mask: The mask
$start: Start optional
$length: Length optional

Returns

integer