empty fields in form

KryptoS · Jun 21, 2005

Hey,

I'm writing an website with a form. When I post the form I want to get all the values and elements. I thought using:

while (list($element,$waarde) = each($_POST)) {
echo ("<b>$element</b> = $waarde<br>");
}

but when I don't fill in a field in the form I don't see the element in my echo? Is there a way to get the element by using while ... each when the field is left empty?

The One And Only KryptoS

sleipnir214 · Jun 21, 2005

It depends on the type of field.

Form fields of type "text" will always submit data to a script, even when empty. A checkbox will not.

The only way to get them all is to let your script know what field names it should expect. For example:

Code:

<?php
print '<html><body><pre>';
$field_names = array('foo', 'bar');

foreach ($field_names as $field_name)
{
   print $field_name . '="' . $_POST[$field_name] . "\r\n";
}
print '</pre></body></html>';
?>

Keep in mind, too, that the script:

Code:

<?php
print '<html><body><pre>';
print_r ($_POST);
print '</pre></body></html>';
?>[code]


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empty fields in form

KryptoS

Programmer

sleipnir214

Programmer

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