how to check if an array object contains an associative array in php?

Question

Here is an array object that contains an array [body]. How do I get to know that this object has array inside and give me it's keys?

Array
(
    [6] => stdClass Object
        (
            [vid] => 6
            [uid] => 1
            [title] => om
            [log] => 
            [status] => 1
            [comment] => 2
            [promote] => 0
            [sticky] => 0
            [nid] => 6
            [type] => article
            [language] => und
            [created] => 1436514497
            [changed] => 1438003101
            [tnid] => 0
            [translate] => 0
            [revision_timestamp] => 1438003101
            [revision_uid] => 1
            [body] => Array
                (
                    [und] => Array
                        (
                            [0] => Array
                                (
                                    [value]

Pupil · Accepted Answer · 2015-07-28 07:24:45Z

2

You need to check whether the object has body property, which is array and which should not be empty.

And fetch the keys it all three conditions fulfill.

Use is_array(), array_keys() and isset()

if (isset($obj->body) && is_array($obj->body) && ! empty($obj->body)) {
  // yes it has
  $keys = array_keys($obj->body);
}
else {
  // either body is not there or body is empty. 
}

EDIT:

Check if any of the object properties is an array and return its keys.

foreach (get_object_vars($obj) as $var) {
  if (gettype($var) == 'array') {
    $keys = array_keys($var);
  }
}

edited Jul 28, 2015 at 7:24

answered Jul 28, 2015 at 6:55

Pupil

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2 Comments

Sugandh Khanna Over a year ago

I don't want to check whether the object has body property, instead, I want to check if there is ANY array EXISTS in this object, and if yes, give me its key.

Sugandh Khanna Over a year ago

when I am doing print_r($keys);die; outside if condition, it is giving me nothing. It seems like, it always check first value in array i.e. vid and it is string not an array, IT IS CHECKING ALL VALUES. I also did print_r at the end of foreach loop, this also gives me blank result.

syed suleman · Accepted Answer · 2015-07-28 06:55:52Z

1

Considering $main_array as your given result. Try this

if( is_array($main_array->body) )
{
// do your process
}

answered Jul 28, 2015 at 6:55

syed suleman

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1 Comment

Sugandh Khanna Over a year ago

I want something like this way.Suppose $compfield is my main array.So foreach ($compfields as $comp => $comps){foreach ($comps as $value=>$values) {if(is_array($value)){print ($value); } }} and in $value, I want body

Taff · Accepted Answer · 2015-07-28 06:58:22Z

0

Check if it is an array with:

http://php.net/manual/de/function.is-array.php

answered Jul 28, 2015 at 6:58

Taff

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1 Comment

mickmackusa Over a year ago

If you are going to ask the OP to RTM, just post your hint as a comment under the question. There is not enough effort to educate in this answer.

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