note 20661 deleted from ref.strings by philip
| From: | philip@php.net | Date: | Sat, 21 Dec 2002 01:42:06 +0000 |
| Subject: | note 20661 deleted from ref.strings by philip | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-41167@lists.php.net to get a copy of this message | ||
Much faster and much better way to check does string consists
from alphanumeric chars 'only' ...
By the way, author of previous isalphanumstr()
forgot to add whitespace to his array.
It's not an alphanumeric char,
but who would need this function without it ? :)
function isalphanumstr($string) {
$res=true;
for($i = 0; $i < strlen($string); $i++)
if((ord($string[$i])<48 && ord($string[$i])!=32) ||
(ord($string[$i])>57 && ord($string[$i])<65) ||
(ord($string[$i])>90 && ord($string[$i])<97) ||
ord($string[$i])>122) {$res=false; break;}
return $res;
}
echo isalphanumstr(" 1234567890qwertyuiopasdfghjklzxcvbnm
QWERTYUIOPASDFGHJKLZXCVBNM");
//... returns "1" //;)