php accessing form variables dynamically

Question

I have some repetitive form field variables and want to put them into variable after POST.

$item_code1 = mysql_sanitize( $_POST['item_code1'] );
$units1 = mysql_sanitize( $_POST['units1'] );
$qty1 = mysql_sanitize( $_POST['qty1'] );
$size1 = mysql_sanitize( $_POST['size1'] );
$make1 = mysql_sanitize( $_POST['make1'] );
$finish1 = mysql_sanitize( $_POST['finish1'] );

$item_code2 = mysql_sanitize( $_POST['item_code2'] );
$units2 = mysql_sanitize( $_POST['units2'] );
$qty2 = mysql_sanitize( $_POST['qty2'] );
...

These set of form variables can be 1 - 10 (or more) I am passing how many sets of these form variables through a counter

$ctr_i = mysql_sanitize( $_POST['ctr_i'] );

How do i get the variables like above programatically ? i mean looping through $ctr_i, i want to put all the POST values to PHP variables.

Any ideas?

have you extract() function? tried php.net/manual/en/function.extract.php — jogesh_pi
– jogesh_pi, Commented Feb 2, 2013 at 10:10

user1646111 · Accepted Answer · 2013-02-02 10:13:13Z

2

<?php
foeach($_POST as $key => $val){
 $$key = mysql_sanitize($val);
}
?>

answered Feb 2, 2013 at 10:13

user1646111

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4 Comments

ShuklaSannidhya Over a year ago

But what if the first letter of $key is a number?

ShuklaSannidhya Over a year ago

The variable name can't start with a number so what happens when $$key is created when first letter of $key is a number (0-9)

user1646111 Over a year ago

@SandyLee_user53167: then my answer will be incorrect, but who use numbers?

user2034972 Over a year ago

umm.. mysql_sanitize fails on some array fields i have.. any sol??

AlecTMH · Accepted Answer · 2013-02-02 10:15:36Z

2

You can try something like the below:

$post = $_POST;
$post = array_map('mysql_sanitize', $post);
extract($post);

After this you will have set of the variables.

edited Feb 2, 2013 at 10:15

answered Feb 2, 2013 at 10:10

AlecTMH

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Comments

Ritvick · Accepted Answer · 2013-02-02 10:15:52Z

2

It would be easier if you have input arrays in your html page like

<input type="text" name="field[]" />
<input type="text" name="field[]" />
<input type="text" name="field[]" />

Then you can collect all the values on the php side by

$field = $_POST['field'];

foreach($field as $a_field)
{
  echo $a_field;
}

answered Feb 2, 2013 at 10:15

Ritvick

786 bronze badges

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