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strcspn

Name

strcspn — Returns the number of characters present in string before any part of mask is found.

Synopsis

int strcspn(string, mask);
string string: String to search
string mask: List of characters to find

Returns

String

Description

strcspn() returns the number of characters that occur between the start of string and the first occurrence of any character listed in mask .

strcspn() provides a simple way to parse strings and validate data. It is not commonly used in PHP - many other functions exist in the language that eclipse it in power and convenience.

Version

PHP 3.0.3+, PHP 4+

See also

To find the length of an initial substring containing only certain characters :

strspn()

Other functions that count the number or occurrence of characters or strings within a string:

count_chars()

strlen()

substr_count()



Example

Example 1221. Display names that don't start with a vowel

<?php
$list = array("Andrew", "Brigitte", "Chris", "Deb");
foreach($list as $name) {
   if(strcspn($name, 'aeiouyAEIOUY')) {
      echo $name, "\n";
   }
}
?>

Output:
Brigitte
Chris
Deb



PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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