PHP funkce strspn()

Dostupnost ve verzích: PHP 4.0

Finds the length of the first segment of a string consisting

Parametry

Parametr	Datový typ	Výchozí hodnota	Poznámka
$subject	string		The string to examine.
$mask	string		The list of allowable characters to include in counted segments.
$start	int	null,	The position in subject to start searching.
$length	int	null	The length of the segment from subject to examine.

Návratové hodnoty

int

the length of the initial segment of str1 which consists entirely of characters in str2.

Další zdroje

https://php.net/manual/en/function.strspn.php