PHP strspn Function

What is strspn Function?

Explanation

In PHP this function returns the number of characters found in the string that contains only characters from the charlist.

Syntax:


strspn(string,char,start,length)

The above syntax specifes the "string" to be search, "char" specifies the characters to be searched for, "start" specifes where to start search,"length" specifes the length of the string.

Example :


<?php
echo strspn("42 code for the question...", "1234567890");
?>
Result :

2

In the above strspn function example only 2 characters from the character list is present in the string, hence returns "2".

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