How to transform this php associative array?

Question

I have this php associative input array.

array(
    (int) 0 => array(
        'Data' => array(
            'id' => '12',
            'type_id' => '1',
            'data_value' => '35.5000'
        ),
        'Type' => array(
            'id' => '1',
            'name' => 'Temperature'
        )
    ),
    (int) 1 => array(
        'Data' => array(
            'id' => '11',
            'type_id' => '1',
            'data_value' => '33.7000'
        ),
        'Type' => array(
            'id' => '1',
            'name' => 'Temperature'
        )
    )

I want to convert it to this output array;

array(
    (int) 0 => array(
        (int) 0 => array(
            'v' => (int) 1
        ),
        (int) 1 => array(
            'v' => '35.5000'
        )
    ),
    (int) 1 => array(
        (int) 0 => array(
            'v' => (int) 2
        ),
        (int) 1 => array(
            'v' => '33.7000'
        )
    )

The element data_value is extracted from the input array into the output array.

The code I have written looks like this;

                $data2 = array();
                foreach ($InputArray as $key=>$value)
                {
                    $data2[] = array(
                                array(                                        
                                    array('v' => $key),
                                    array('v' => $value['Data']['data_value']) 
                            )
                        );
                }

Unfortunately, this code does not work. The output from this code looks like this;

array(
    (int) 0 => array(
        (int) 0 => array(
            (int) 0 => array(
                [maximum depth reached]
            ),
            (int) 1 => array(
                [maximum depth reached]
            )
        )
    ),
    (int) 1 => array(
        (int) 0 => array(
            (int) 0 => array(
                [maximum depth reached]
            ),
            (int) 1 => array(
                [maximum depth reached]
            )
        )
    )

What did I do wrong? Why do I get the error "maximum depth reached"? How can I retrieve the desired output array? I am actually doing this in cakephp.

Thank you very much for any help.

Could you please elaborate what v=>1 and v=>2 in your output array are? — Zlatin Zlatev
– Zlatin Zlatev, Commented Apr 4, 2014 at 12:26

Andresch Serj · Accepted Answer · 2014-04-04 12:32:57Z

4

That is one wrapping array() to many:

        $data2 = array();
        foreach ($InputArray as $key=>$value)
        {
            $data2[] = array(                                      
                            array('v' => $key),
                            array('v' => $value['Data']['data_value']) 

                );
        }

You can see this working here. It is good use to prepare your code in services like ideome or plnkr in order to make it easier for people to help you with debugging.

edited Apr 4, 2014 at 12:32

answered Apr 4, 2014 at 12:25

Andresch Serj

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4 Comments

guagay_wk Over a year ago

Amazing! How did you catch my mistake so quickly? Thanks but you made me feel like an idiot:)

Andresch Serj Over a year ago

@user3293156 consider accepting my answer thus marking this question as answered thus preventing this question from getting more attention thus keeping others from reading about you feeling like an idiot ;-)

guagay_wk Over a year ago

Of course. I have been trying to accept the answer a few times already. Stack Overflow only allows me to accept in 5 minutes time from now.

Andresch Serj Over a year ago

@user3293156 Well, take those 5 minutes and check out the services i mentioned in my edit. They might help you in the future, either for asking or for answering questions. Or just to play with them :D

user1954544 · Accepted Answer · 2014-04-04 12:25:56Z

1

As far as I know, the problem is related to a setting for PHP http://www.hardened-php.net/suhosin/configuration.html#suhosin.executor.max_depth . Could you check with your hosting provider?

answered Apr 4, 2014 at 12:25

user1954544

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2 Comments

Andresch Serj Over a year ago

That would only solve the problem of displaying the result, not the fact that the result is wrong :-/

user1954544 Over a year ago

@Andresch Serj you had answered in right way, no need to duplicate 100500 times same answer. I just add 'why maximum depth reached happens'. ;)

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