strspn

Definition and usage

strspn() function returns the number of characters specified in the charlist parameter in the string.

Tip: Please use the strcspn() function to return the number of characters found in the string before any specified character is found.

Note: This function is binary safe.

Example

Example 1

Returns the number of characters "kHlleo" contained in the string "Hello world!":

 <?php
echo strspn ( "Hello world!" , "kHlleo" ) ;
?>

Try it yourself

Example 2

Returns the number of characters "abc" contained in the string "abcdefand":

 <?php
echo strspn ( "abcdefand" , "abc" ) ;
?>

Try it yourself

grammar

 strspn ( string , charlist , start , length )