strspn
Description
int strspn ( string str1, string str2 [, int start [, int length]] )
Returns the length of the initial segment of
str1
which consists entirely of characters
in str2
.
The line of code:
will assign 2 to$var
, because the string "42" will
be the longest segment containing characters from "1234567890".
As of PHP 4.3.0, strspn() accepts two optional
integer parameters that can be used to define the
start
position and the
length
of the string to examine.
Notatka: Ta funkcja jest bezpieczna dla danych binarnych.
See also strcspn().