Create variable from $_POST array in php - php

Question

I am having a $_POST array look like this:
Array
(
[veryfy_doc_type] => Array
(
[0] => 1
[1] => 2
)
[id_number] => Array
(
[0] => 3242424
[1] => 4456889
)
[document_issuer] => Array
(
[0] => 1
[1] => 3
)
[verify_doc_expiry_date] => Array
(
[0] => 2016-01-26
[1] => 2015-02-20
)
[doc_id] => Array
(
[0] => 15
[1] => 16
)
[user_id] => Array
(
[0] => 14
[1] => 14
)
)
Using this array I need to get each values into php variables.
I tried it something like this, but it doesn't work for me.
foreach($_POST AS $k => $v) {
//print_r($v);
list($doc_type, $id_number, $issuer, $expiry_date, $doc_id, $user_id) = $v;
}
echo "Type = $doc_type";
Can anybody tell me how to figure this out.
Thank you.

Answer 1

This might help you since you can also use extract in php to create variables.
<?php
$_POST = array(
'veryfy_doc_type'=> array(1,2),
'id_number' => array(3242424,4456889),
'document_issuer'=> array(1,3),
'verify_doc_expiry_date'=> array('2016-01-26','2015-02-20'),
'doc_id' => array(15,16),
'doc_id' => array(14,14)
);
extract($_POST);
print_r($veryfy_doc_type);
print_r($id_number);

Answer 2

So you want to reference each of the sub-array values while looping the main array... maybe something like this?
// Loop one of the sub arrays - you need to know how many times to loop!
foreach ($_POST['veryfy_doc_type'] as $key => $value) {
// Filter the main array and use the $key (0 or 1) for the callback
$rowValues = array_map(function($row) use ($key) {
// Return the sub-array value using the $key (0 or 1) for this level
return $row[$key];
}, $_POST);
print_r($rowValues);
}
Example: https://eval.in/498895
This would get you structured arrays for each set of data.
From here I'd suggest you leave the arrays as they are rather than exporting to variables, but if you wanted to you you could use the list() as in your example.

Answer 3

You can use a MultipleIterator for that:
<?php
$post = array(
'veryfy_doc_type' => array('1','2'),
'id_number' => array('3242424','4456889'),
'document_issuer' => array(1,3),
'verify_doc_expiry_date' => array('2016-01-26','2015-02-20'),
'doc_id' => array(15,16),
'user_id' => array(14,14)
);
$mit = new MultipleIterator(MultipleIterator::MIT_NEED_ALL|MultipleIterator::MIT_KEYS_ASSOC);
foreach($post as $k=>$v) {
$mit->attachIterator( new ArrayIterator($v), $k);
}
foreach( $mit as $row ) {
echo $row['doc_id'], ' ', $row['id_number'], ' ', $row['verify_doc_expiry_date'], "\r\n";
}
prints
15 3242424 2016-01-26
16 4456889 2015-02-20
If you have control over the client code you can change the names of the POST parameters in a way that php build this structure automagically. E.g.
<form method="POST" action="test.php">
<input type="hidden" name="record[0][veryfy_doc_type]" value="1" />
<input type="hidden" name="record[0][id_number]" value="3242424" />
<input type="hidden" name="record[0][document_issuer]" value="1" />
<input type="hidden" name="record[0][verify_doc_expiry_date]" value="2016-01-26" />
<input type="hidden" name="record[0][doc_id]" value="15" />
<input type="hidden" name="record[0][user_id]" value="14" />
<input type="hidden" name="record[1][veryfy_doc_type]" value="2" />
<input type="hidden" name="record[1][id_number]" value="4456889" />
<input type="hidden" name="record[1][document_issuer]" value="3" />
<input type="hidden" name="record[1][verify_doc_expiry_date]" value="2015-02-20" />
<input type="hidden" name="record[1][doc_id]" value="16" />
<input type="hidden" name="record[1][user_id]" value="14" />
<input type="submit" />
</form>
would do/cause that.

Answer 4

If you only want to get the value of the post then you can have a simple multidimentional loop. no need to make it broad
foreach($_POST as $keyName => $row){
// $keyName will be verify_doc_type, id_number, etc..
foreach($row as $value){
// do something
echo $value;
}
}
Hope that helps.

Answer 5

This method will generate variables of same name as in POST array:
foreach ($_POST as $k => $v )
{
$$k = addslashes(trim($v ));
}

Answer 6

I know this post is a bit old, but I was recently trying to achieve this very same thing.
Hopefully the answer will point others in the right direction.
As per the documentation on list():
Since PHP 7.1, keys can be specified
Example from the manual:
<?php
$arr = ['locality' => 'Tunis', 'postal_code' => '1110'];
list('postal_code' => $zipCode, 'locality' => $locality) = $arr;
echo $zipCode; // will output 1110
echo $locality; // will output Tunis
?>
https://www.php.net/manual/en/function.list.php#121094