php form post array order

Question

In php, if you name your form fields using numerical indexes, they work as arrays in the $_POST object.

<form method="post" action="post.php">
    <input type="text" name="question[0][name]" />
    <input type="text" name="question[0][email]"/>
    <input type="text" name="question[0][password]" />
    <hr>
    <input type="text" name="question[1][name]" />
    <input type="text" name="question[1][email]"/>
    <input type="text" name="question[1][password]" />
    <hr>
    <input type="submit" value="Add" />
    <hr>
    <p><?php

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    echo json_encode($_POST, JSON_NUMERIC_CHECK);
}

     ?></p>
</form>

outputs

{"question":[{"name":"a","email":"aa","password":"aaa"},{"name":"b","email":"bb","password":"bbb"}]}

If the ordering of the fields is not sequential starting at zero and incrementing by only one each time the name is repeated, then they are all interpreted as keys instead. So

<form method="post" action="post.php">
    <input type="text" name="question[1][name]" />
    <input type="text" name="question[1][email]"/>
    <input type="text" name="question[1][password]" />
    <hr>
    <input type="text" name="question[0][name]" />
    <input type="text" name="question[0][email]"/>
    <input type="text" name="question[0][password]" />
    <hr>
    <input type="submit" value="Add" />
    <hr>
    <p><?php

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    echo json_encode($_POST, JSON_NUMERIC_CHECK);
}

     ?></p>
</form>

outputs

{"question":{"1":{"name":"a","email":"aa","password":"aaa"},"0":{"name":"b","email":"bb","password":"bbb"}}}

Is there a way to get $_POST to ignore the order of arrays of post keys so they are interpreted as an array?

Another way is to sort $_POST array when get.

Shivani P
– Shivani P

2016-04-29 05:53:40 +00:00
Commented Apr 29, 2016 at 5:53 — Shivani P
– Shivani P, Commented Apr 29, 2016 at 5:53
@ShivaniPatel your example of this?

frumbert
– frumbert

2016-05-02 00:21:50 +00:00
Commented May 2, 2016 at 0:21 — frumbert
– frumbert, Commented May 2, 2016 at 0:21

Shivani P · Accepted Answer · 2016-05-02 05:41:36Z

1

Please check if helpful or not :

<form method="post" action="#">
    <input type="text" name="question[1][name]" />
    <input type="text" name="question[1][email]"/>
    <input type="text" name="question[1][password]" />
    <hr>
    <input type="text" name="question[0][name]" />
    <input type="text" name="question[0][email]"/>
    <input type="text" name="question[0][password]" />
    <hr>
    <input type="submit" value="Add" />
    <hr>
    <p>
 <?php
    if ($_SERVER['REQUEST_METHOD'] == 'POST') {                     
            ksort($_POST['question']);          
            print_r($_POST['question']);
    }

 ?>
</p>
</form>

answered May 2, 2016 at 5:41

Shivani P

4162 silver badges10 bronze badges

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

3 Comments

Shivani P Over a year ago

It will sort array according to keys.

frumbert Over a year ago

In my first code, it doesn't matter what the field names are. In the "fix", the field names have to be known ahead of time. Is there a way to sort all field names in the POST object without necessarily knowing their names ?

Shivani P Over a year ago

Please check this helpful or not, i have implement function like this :i.imgur.com/8yfZN0f.png and output is i.imgur.com/7SiRiaR.png

Collectives™ on Stack Overflow

php form post array order

1 Answer 1

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related