(PHP 4, PHP 5)
strspn — Find length of initial segment matching mask
Finds the length of the initial segment matching mask.
The line of code:
$var = strspn("42 is the answer, what is the question ...", "1234567890");
The first string.
The second string.
The start position of the string to examine. Negative value counts position from the end of a string.
The length of the string to examine. Negative value sets length from the end of a string.
Returns the length of the initial segment of str1 which consists entirely of characters in str2 .
|4.3.0||The start and length parameters were added|
Example #1 strspn() example
echo strspn("foo", "o", 1, 2); // 2
Note: This function is binary-safe.