PHP, pushing array recursively within a foreach loop

Question

Given the following array

$a = array(
    'a' => '0',
    'b' => '1',
    'c' => '2',
    'push' => array(
         'd' => '0',
         'e' => '1',
         'here' => array()
    )
);

And the following set of loops:

// First level
foreach($a as $key=>$value):

     if($key=='push'):

        //Second level
        foreach($value as $key_=>$value_):

             if($key_=='here'):

              // If this key is found then do some stuff here and get another as a result array
              $thirdArray = array(12, 13, 15);

              // Then, I am looking to push this third array from within this loop 
              // Obviously, it should be placed inside this particular key of the array
              // I am trying something like below which doesn't work

              //array_push($value_, $thirdArray);

              endif;

         endforeach;

     endif;

 endforeach;

/* The output of printing my array should be

  'a' => 'A',
  'b' => 'B',
  'c' => 'C',
      'push' => array(
            'd' => '0',
            'e' => '1',
            'here' => array(

                     array(12, 13, 15)

             )


  */

This is giving me a big headache... and can't seem to find a solution.. Many thanks for your help in advance..

I'm not really sure what you're trying to achieve? Could you clarify some more? — Oldskool
– Oldskool, Commented Dec 29, 2011 at 13:06
@user1099862 You need to tell us what your real goal is, not some abstracted version of it. — jezmck
– jezmck, Commented Dec 29, 2011 at 13:08

Parziphal · Accepted Answer · 2011-12-29 13:20:57Z

2

foreach($value as $key_=>$value_):
  if($key_=='here'):
    $thirdArray = array(12, 13, 15);
    $a['push']['here'][] = $thirdArray;
  endif;
endforeach;

or

foreach($value as $key_=>$value_):
  if($key_=='here'):
    $thirdArray = array(12, 13, 15);
    $a[$key][$key_][] = $thirdArray;
  endif;
endforeach;

answered Dec 29, 2011 at 13:20

Parziphal

7,0725 gold badges38 silver badges38 bronze badges

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

1 Comment

user1099862 Over a year ago

Fantastic, thanks.. I will keep second option as in the real example i don't know the name of the key..

AndVla · Accepted Answer · 2011-12-29 13:14:17Z

0

Why don't you use something like that:

$a[$key][$key_] = array(12, 13, 15);

in stead of

$thirdArray = array(12, 13, 15);

or in case you know the place:

$a['push']['here'] = array(12, 13, 15);

answered Dec 29, 2011 at 13:14

AndVla

7142 gold badges6 silver badges19 bronze badges

Comments

Matteo B. · Accepted Answer · 2011-12-29 13:23:46Z

0

Looks like

if( isset( $a['push'] ) )
 if( isset( $a['push']['here'] ) )
  $a['push']['here'][] = array(12, 13, 15);

would be the fastest way ô.O

edited Dec 29, 2011 at 13:23

answered Dec 29, 2011 at 13:11

Matteo B.

4,0942 gold badges35 silver badges43 bronze badges

Comments

Matteo B. · Accepted Answer · 2011-12-29 13:32:26Z

0

You also could try to do replace $value and $value_ to references, so replace them in the lines 2 and 7 by &$value and &$value_ then you should be able to do what you wanted to (array_push)

EDIT: Notice it's not until PHP 5

edited Dec 29, 2011 at 13:32

answered Dec 29, 2011 at 13:19

Matteo B.

4,0942 gold badges35 silver badges43 bronze badges

Comments

cambraca · Accepted Answer · 2011-12-29 15:57:49Z

0

if($key_=='here'):       
    $value[$key_] = array(12, 13, 15);            
endif;

edited Dec 29, 2011 at 15:57

cambraca

28k17 gold badges71 silver badges102 bronze badges

answered Dec 29, 2011 at 13:07

Sudhir Bastakoti

100k15 gold badges163 silver badges169 bronze badges

1 Comment

Matteo B. Over a year ago

Won't affect the original array, only the copy inside the foreach block.

Collectives™ on Stack Overflow

PHP, pushing array recursively within a foreach loop

5 Answers 5

1 Comment

Comments

Comments

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

5 Answers 5

1 Comment

Comments

Comments

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related