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strspn
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strspn

Name

strspn — Finds the length of the initial substring containing only characters from mask .

Synopsis

int strspn(string, mask); string string: String to search string mask: Characters to find

Returns

Number of characters found

Description

strspn() returns the length of the substring at the start of string that contains only characters from mask . Given string abcdefand mask abc, for example, the function returns3.

Version

PHP 3.0.3+, PHP 4+

Example

Example 1232. Display names that start with vowels

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

Output:
Andrew

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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.