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Digg  strpbrk
Search a string for any of a set of characters
(PHP 5)
Example 2460. strpbrk() example<?phpCode Examples / Notes » strpbrkaidan
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 pzb
One undocumented requirement: If $char_list contains null characters ("\0"), only characters before the null will be used. While PHP handles nulls in strings just fine, the data is passed to a function that is not null safe. evan
If you're not looking to duplicate the rest of the string, but instead just want the offset, in the spirit of the str*pos() functions: <?php function strpbrkpos($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; } ?> jamie dot mcardle
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.
user
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. |
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