Re: Dynamic Array Index using Variable

Jim Moseby wrote:

I want to do something like this to check if a variety of submitted form fields (crn, instructor, etc) have any value in them: $reqfields = array('crn', 'instructor'); $errorflag = 0; foreach ($reqfields as $field) { if ($_REQUEST[$field] == '') { $errorflag = 1; } } But I can't quite get the syntax right... help??

Something like this maybe? <? //untested foreach($array as $key=>$value){ if(!isset($array[$key])){

    $errorflag = 1;

} } ?> JM

That doesn't work. Only the last value is assigned; if all you want to know is whether any one is empty, then $err_msg= ''; foreach($array as $key=>$value){ if(empty($value)){ $err_msg= "$key is empty"; break; } echo $err_msg; Or $err_msg= ''; foreach($array as $key=>$value){ if(empty($value)){ $err_msg .= "$key is empty<br>"; } echo $err_msg;