$_POST help!

[edh]

Hello,

I am splitting the variables from the global array $_POST with each() and list() and assigning separate variables from the split.

However, after assigning global variables once within a function using each()/list(), you can't do it again in another function. See example below:

Am I missing something? Shouldn't you be able to split the $_POST array anytime, anywhere, and any number of times?

Someone please advise. Thank you.

EXAMPLE:

<form method="post">
<input type="text" name="field1" value="foo">
<input type="text" name="field2" value="bar">
<input type="submit">
</form>

<?php

split1();
split2();

function split1() {
echo "FIRST SPLIT RESULTS<BR>";
while( list($key, $value) = each($_POST) )
{

$$key = trim($value);
echo "$$key , $value<br>";
}
}

function split2() {
echo "<P>SECOND SPLIT RESULTS<BR>";
while( list($key, $value) = each($_POST) )
{

$$key = trim($value);
echo "$$key , $value<br>";
}
}

?>

============================

Ed

[jamie_kerwick]

I'm just guessing here, but maybe try,reset($_POST) after the first iteration of the $_POST array?

Jamie

[keith73]

I'm confused as to why you're doing what you're doing, but I do have a suggestion. In the second function, try resetting $POST before parsing it in the while-loop.

reset $_POST;

This places the array pointer back to the beginning of the array.

Also, if register_globals is turned on in your php.ini configuration, you don't need those functions, PHP would automatically create the global variables. But don't forget about scope. $_POST is a superglobal available in all functions and so on. register_globals does not create superglobals and using the global command does not either.

• keith

[edh]

Hello Keith,

Yes that did work for me. For example in the first function.

function split1() {

echo "FIRST SPLIT RESULTS<BR>";
while( list($key, $value) = each($POST) )
{

$$key = trim($value);
echo "$$key , $value<br>";
}
reset ( $POST);
}

However, it is still strange that you can do this with other arrays without a problem, but not the $_POST.

thanks,

Ed

[diego25]

The function each() moves the internal array pointer forward no matter what array ($_POST or otherwise). So even for other arrays, split2() wouldn't work without calling reset().

Diego