Strspn function instance tutorial _ PHP Tutorial

Strspns function example tutorial. Define and use the number of characters returned by the strspn () function. find the string that contains only characters from charlist. String: required. Definition and usage
The Strspns() The number of characters returned by the function indicates that the string contains only characters from charlist.

Syntax

Strspns (string, charlist, start, length)

Parameters

Description

String: required. String search

Charlist: required. Find the specified character

Start: Optional. Start with the specified string

Length: Optional. Note: This function is binary secure.

Example 1

Echo strspn ("Hello world! "," KHlleo ");

?>

Result: 5

Let's look at another example.Strspns tutorial.

Echo strspn ("abcdefand" abc ");

?>

Result 3

Returns the number of characters returned by the strspn () function. the string contains only characters from charlist. String: required. ...