HTTP_POST_VARS and validation

Anon

According to Meloni, this global variable is actually an associative array (a "collection" in VB terms) that contains all of the variables on one Form that are submitted to the next Form using the POST method.

My question is, how to iterate thru these variables? I want to check all fields on a Form that is submitted for processing to the next validation Form for NULLs in any of the variables (Form fields).

Is there a simple way to do this via a loop? Sorry, just having a mental block here.

Thanks in advance.

toma42

PHP 4.1 has renamed them to $_POST

foreach ($_POST as $name => $value) {
// whooo hoo, I'm iterating
}

Anon

Didn't follow you there. The manual says:

"The second form does the same thing, except that the current element's key will be assigned to the variable $key on each loop."

Question is, what is >= $value. ?

And what is $name?

You lost me there.

Anon

stinger,
here's how i do it. feel free to drop me an email if you want more info (i don't hit this board too often):

if($SUBMIT == "Update") {
if(is_array($HTTP_POST_VARS))
{

print "checking post vars<BR>";

reset($HTTP_POST_VARS);
while(list($key, $value) = each($HTTP_POST_VARS))
{
if(ereg("^{STATUS_([0-9]*)",} $key, $match)) {
// print "testing post var $key: " .$value. "<BR>\n";

    //if(ereg("^SCROLL_([0-9]*)_([0-9]*)", $key, $match))
print "<BR>Key:".$key."Match:".$match[1]."Value:".$value;

Note: I have multiple <select> fields with names STATUS_####, I'm grabbing that number from the select name and using it for processing.

Anon

The manual also gives an example:

/ foreach example 3: key and value /

$a = array (
"one" => 1,
"two" => 2,
"three" => 3,
"seventeen" => 17
);

foreach($a as $k => $v) {
print "\$a[$k] => $v.\n";
}

Which will print
$a[one]=>1.
$a[two]=>2.
$a[three]=>3.
$a[seventeen]=>17.

So you want

foreach($HTTP_POST_VARS as $field=>$value)
{Do stuff...
...where $field steps through the keys (the names of the form fields)...
...and $value contains the corresponding value for each such key
}