note 57459 added to function.ereg

I think that fox's zip code check may need a slight modification. Here is fox's code: $error_code=(ereg("^[0-9]{5}(-[0-9]{4})$",$zip))? NULL:1; This will error on valid zipcodes such as 99212. If you change the regular expression to: $error_code=(ereg("^[0-9]{5}(-[0-9]{4})*$",$zip))? NULL:1; It will not error on valid zipcodes such as 99212. To test this you may use the following code: <?php $testzip[]="99212"; $testzip[]="9921"; $testzip[]="99212-1234"; $testzip[]="9921a"; $testzip[]="99212-12"; $regex['fox']="^[0-9]{5}(-[0-9]{4})$"; $regex['mcallier']="^[0-9]{5}(-[0-9]{4})*$"; foreach($regex as $key=>$expression) { echo($key."<br>\n"); echo("-----------<br>\n"); foreach($testzip as $value) { $test=ereg($expression,$value); $test==1?$test="good":$test="bad"; echo("$value=$test<br>\n"); } echo("<br>\n"); } ?> The output of this is: fox ----------- 99212=bad 9921=bad 99212-1234=good 9921a=bad 99212-12=bad mcallier ----------- 99212=good 9921=bad 99212-1234=good 9921a=bad 99212-12=bad ---- Manual Page -- http://www.php.net/manual/en/function.ereg.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+57459 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+57459&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+57459&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+57459&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+57459&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+57459&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+57459&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+57459&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+57459&report=yes Search -- http://master.php.net/manage/user-notes.php