One undocumented requirement:
If $char_list contains null characters ("\0"), only characters before the null will be used. While PHP handles nulls in strings just fine, the data is passed to a function that is not null safe.
strpbrk
(PHP 5)
strpbrk — Search a string for any of a set of characters
Description
string strpbrk ( string $haystack, string $char_list )strpbrk() searches the haystack string for a char_list.
Parameters
- haystack
The string where char_list is looked for.
- char_list
This parameter is case sensitive.
Return Values
Returns a string starting from the character found, or FALSE if it is not found.
Examples
Example 2437. strpbrk() example
<?php
$text = 'This is a Simple text.';
// this echoes "is is a Simple text." because 'i' is matched first
echo strpbrk($text, 'mi');
// this echoes "Simple text." because chars are case sensitive
echo strpbrk($text, 'S');
?>
strpbrk
pzb at novell dot com
29-Jul-2007 08:09
29-Jul-2007 08:09
Evan
04-Jul-2007 12:33
04-Jul-2007 12:33
If you're not looking to duplicate the rest of the string, but instead just want the offset, in the spirit of the str*pos() functions:
<?php
function strpbrkpos($s, $accept) {
$r = FALSE;
$t = 0;
$i = 0;
$accept_l = strlen($accept);
for ( ; $i < $accept_l ; $i++ )
if ( ($t = strpos($s, $accept{$i})) !== FALSE )
if ( ($r === FALSE) || ($t < $r) )
$r = $t;
return $v;
}
?>
user at example dot net
04-Jul-2007 04:25
04-Jul-2007 04:25
For PHP versions before 5:
<?php
function strpbrk( $haystack, $char_list )
{
$strlen = strlen($char_list);
$found = false;
for( $i=0; $i<$strlen; $i++ ) {
if( ($tmp = strpos($haystack, $char_list{$i})) !== false ) {
if( !$found ) {
$pos = $tmp;
$found = true;
continue;
}
$pos = min($pos, $tmp);
}
}
if( !$found ) {
return false;
}
return substr($haystack, $pos);
}
?>
Sadly this is about ten times slower than the native implementation.
jamie dot mcardle at stpetersgv dot org
08-Jun-2007 06:54
08-Jun-2007 06:54
I wanted to use this function to look for an @ in a db entry - didn't work because I don't have this version of PHP yet, but I thought I had my issue licked. Darn it.
aidan at php dot net
21-Aug-2004 05:11
21-Aug-2004 05:11
This functionality is now implemented in the PEAR package PHP_Compat.
More information about using this function without upgrading your version of PHP can be found on the below link:
http://pear.php.net/package/PHP_Compat