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PHP Functions Essential Reference
book

PHP Functions Essential Reference

by Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch
September 2001
Intermediate to advanced
768 pages
32h 45m
English
Sams
Content preview from PHP Functions Essential Reference

strspn

int strspn(string string, string mask) 

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

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 abcdef and mask abc, for example, the function returns 3.

Version:

PHP 3.0.3+, PHP 4+

See also:

To return the number of characters present in a string before any of a set of specified characters is found:

strcspn() 

Example:

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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Publisher Resources

ISBN: 073570970XPurchase book