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PHP

Find length of initial segment not matching mask


strcspn

(PHP 4, PHP 5)

strcspnFind length of initial segment not matching mask

Description

int strcspn ( string $str1 , string $str2 [, int $start [, int $length ]] )

Returns the length of the initial segment of str1 which does not contain any of the characters in str2.

Parameters

str1

The first string.

str2

The second string.

start

The start position of the string to examine.

length

The length of the string to examine.

Return Values

Returns the length of the segment as an integer.

Changelog

Version Description
4.3.0 The start and length were added

Examples

Example #1 strcspn() example

<?php
$a 
strcspn('abcd',  'apple');
$b strcspn('abcd',  'banana');
$c strcspn('hello''l');
$d strcspn('hello''world');

var_dump($a);
var_dump($b);
var_dump($c);
var_dump($d);
?>

The above example will output:

 int(0) int(0) int(2) int(2) 

Notes

Note: This function is binary-safe.

See Also

  • strspn() - Finds the length of the initial segment of a string consisting entirely of characters contained within a given mask.



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