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Posted by Al on 01/10/06 04:29
Chris Lott wrote:
> What I have is a form with 45 data fields... if any of a selected 35
> of those fields is empty, I want to have the user go back. So I can't
> loop over the entire _POST array. So I thought I would put the names
> of the fields I *do* want to check into an array and check.
>
> So this won't work:
>
>>foreach($array as $key=>$value){
>> if(empty($value)){
>> $err_msg= "$key is empty";
>> break;
>
>
> Because the array is the names of the fields, and I want to check each
> variable in _POST that matches. So instead of writing
>
> if (empty($_POST['forma'])
> if (empty($_POST['formb'])
> etc
>
> I would do something like
>
> $fieldstocheck = array('forma', 'formb');
>
> foreach ($fields as $thisfield) {
> if (empty($_POST[$thisfield])) {
> set the error flag;
> }
>
> But that doesn't seem to work.
>
> Eventually I will use the array to associate error text:
> $fieldstocheck = array('forma' => 'You must enter field A', 'formb' =>
> ''Field B is your age in years and is required');
>
> etc
>
> c
Simple...
Make an array of the field names to test, $check_fields= array('field1', ....). Then
foreach($check_fields as $field){
if(empty($_POST[$field])) $err_array[]= $field;
}
$err_array is a list of the empty fields.
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