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PHP strcspn() Function

PHP String Reference PHP String Reference

Example

Print the number of characters found in "Hello world!" before the character "w":

<?php
echo strcspn("Hello world!","w");
?>

Run example »

Definition and Usage

The strcspn() function returns the number of characters (including whitespaces) found in a string before any part of the specified characters are found.

Tip: Use the strspn() function to the number of characters found in the string that contains only characters from a specified character list.

Note: This function is binary-safe.


Syntax

strcspn(string,char,start,length)

Parameter Description
string Required. Specifies the string to search
char Required. Specifies the characters to search for
start Optional. Specifies where in string to start
length Optional. Specifies the length of the string (how much of the string to search)

Technical Details

Return Value: Returns the number of characters found in a string before any part of the specified characters are found
PHP Version: 4+
Changelog: The start and length parameters were added in PHP 4.3


More Examples

Example 1

Using all parameters to print the number of characters found in "Hello world!" before the character "w":

<?php
echo strcspn("Hello world!","w",0,6); // The start position is 0 and the length of the search string is 6.
?>

Run example »


PHP String Reference PHP String Reference

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