PHP parse array post

Question

A page is posting an array to me like this:

<input type="text" name="fields[email_address][value]" value="1" />
<input type="text" name="fields[first_name][value]" value="jim" />
<input type="text" name="fields[zip_code][value]" value="45254" />...

An array.

I can loop through it like this easy enough

    foreach ( $_POST['fields'] as $key => $field ) {

        echo $key." ".$field['value'] ;
        }

Result of above:

first_name jim
email_address 1
address_postal_code 45254

But what I really need to do is reference just the zip (45254) out of the array, maybe like:

echo $_POST['fields']['zip_code']; //or
echo $_POST['fields']['zip_code']['value'];

result: 45254

Is this possible?

not seeing an issue, why not echo $_POST['fields']['zip_code']['value'] ? — user557846
– user557846, Commented Mar 26, 2015 at 23:12
that's the first thing I tried. notice my sting value: echo $key." ".$field['value'] — jimmyv
– jimmyv, Commented Mar 26, 2015 at 23:16
again, I have no control over the post its from a wordpress plugin. So they post this jsonish array and one of the arrays is named 'fields' — jimmyv
– jimmyv, Commented Mar 26, 2015 at 23:19

cwurtz · Accepted Answer · 2015-03-26 23:56:58Z

2

Update

<input type="text" name="fields[zip_code][value]" value="45254" />

to be

<input type="text" name="fields[zip_code]" value="45254" />

Edit: I wasn't aware you can't modify the html, that wasn't specified in the original question.

The only thing you can really do is do:

$_POST['fields']['zip_code'] = $_POST['fields']['zip_code']['value'];

However at that point, you might as well just assign $_POST['fields']['zip_code']['value'] to a variable and use that.

If you can't update the html of the form, all you can do is manipulate the data after it's been assigned to the $_POST superglobal like it's any other array

Edit 2: Adding a complete snippet to try:

If you do, what do you get?:

<?php
foreach ( $_POST['fields'] as $key => $field ) {
    echo $key." ".$field['value'] ."<br />";
}
echo $_POST['fields']['zip_code']['value'] . "<br />";
$_POST['fields']['zip_code'] = $_POST['fields']['zip_code']['value'];
echo $_POST['fields']['zip_code'];
?>

I just tried that with a simple form of:

<form method="post" action="test.php">
  <input type="text" name="fields[email_address][value]" value="1" />
  <input type="text" name="fields[first_name][value]" value="jim" />
  <input type="text" name="fields[zip_code][value]" value="45254" />
  <input type="submit" />
</form>

And it works as expected.

edited Mar 26, 2015 at 23:56

answered Mar 26, 2015 at 22:59

cwurtz

3,2771 gold badge17 silver badges15 bronze badges

Sign up to request clarification or add additional context in comments.

7 Comments

user557846 Over a year ago

please quote array keys

cwurtz Over a year ago

no, it shouldn't have quotes. This is an html input name, adding quotes will add quotes to the keys in the POST data, but i'll update to include the full html tag

jimmyv Over a year ago

I am not making the post and have no control over it. Its coming from a wordpress plugin

jimmyv Over a year ago

foreach ( $_POST['fields'] as $key => $field ) { echo $key." ".$field['value']."<br>" ; }

jimmyv Over a year ago

returns: first_name jim email_address 1 address_postal_code 45254 }

|

jimmyv · Accepted Answer · 2015-03-27 00:10:06Z

0

This seems sloppy but it worked:

foreach ( $_POST['fields'] as $key => $field ) {

$$key = $field['value'] ;
        }

echo $address_postal_code;

45254

echo $_POST['fields']['zip_code']['value']

returns nothing

answered Mar 27, 2015 at 0:10

jimmyv

12 bronze badges

Collectives™ on Stack Overflow

PHP parse array post

2 Answers 2

7 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

7 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related