note 50296 added to function.str-replace

I'm not sure that this is the right place, but I believe that it is useful for the accents problem. I just wrote and tested this script because I'm using a variable from $_GET to open a text file and I do not want to allow anyone to go searching thru my folders by entering ../ (or other malicious stuff that I don't know about). Anyway, this function returns true if the string passed to it is only made up of letters (upper/lower case) or numbers. <?PHP //------------------------------------------------------------------- //allowed chars from 48-57,65-90,97-122 AKA 0-9, A-Z, a-z //------------------------------------------------------------------- function isAlphaNumeric($checkThisString){ $result = true; $i=0; while($i<strlen($checkThisString) && $result){ $char = substr($checkThisString,$i,1); $charNum = ord($char); if( !(($charNum>47 && $charNum < 58) || ($charNum>64 && $charNum < 91) || ($charNum>96 && $charNum < 123)) ) $result = false; $i++; } return $result; } ?> cheers, Adam F-K ---- Manual Page -- http://www.php.net/manual/en/function.str-replace.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+50296 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+50296&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+50296&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+50296&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+50296&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+50296&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+50296&report=yes Search -- http://master.php.net/manage/user-notes.php