PHP Iterate Through Associative Array and Get Specific Values

Question

I have the following associative array:

<? $group_array;

Which outputs the following:

Array
(
[user_id] => Array
    (
        [0] => 594
        [1] => 597
    )

[user_first] => Array
    (
        [0] => John
        [1] => Jane
    )

[user_last] => Array
    (
        [0] => Smith
        [1] => Jones
    )

)

My question is: How can I iterate through the array and output the specific values by it's name?

For instance, something like:

<?php
   foreach ($group_array as $key => $value) {
       print($key['user_id']);
       print($key['user_first']);
       // etc...
   }

But this doesn't appear to work. Any help on this would be great. Thanks!

CrayonViolent · Accepted Answer · 2011-02-02 17:10:04Z

1

foreach ($group_array['user_id'] as $key => $value) {
  print($value); // user id
  print($group_array['user_first'][$key]);
  print($group_array['user_last'][$key]);
}

answered Feb 2, 2011 at 17:10

CrayonViolent

32.6k6 gold badges61 silver badges80 bronze badges

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

Comments

Andy Baird · Accepted Answer · 2011-02-02 17:10:54Z

1

You don't need to iterate through the array to call the keys by their names

echo $group_array['user_id'][0];
// Result: 594

If you wanted to iterate through the values, you could do:

for ($i=0;$i<count($group_array['user_id']);$i++) {
    echo $group_array['user_id'][$i];
    echo $group_array['user_first'][$i];
    echo $group_array['user_last'][$i];
}

answered Feb 2, 2011 at 17:10

Andy Baird

6,2674 gold badges46 silver badges64 bronze badges

Comments

Mikushi · Accepted Answer · 2011-02-02 17:14:58Z

1

Crayon Violent answer is right, but i think your array is not structured well, for easy access and usage i'd recommend something like this

Array
(
    [0] => Array
        (
            [user_id] => 594
            [user_first] => John
            [user_last] => Smith
        )
    [1] => Array
        (
            [user_id] => 597
            [user_first] => Jane
            [user_last] => Jones
        )
)

For an easy access like this :

foreach($group_array as $person) {
    print($person['user_id']);
    print($person['user_first']);
    print($person['user_last']);
}

answered Feb 2, 2011 at 17:14

Mikushi

3,3614 gold badges22 silver badges22 bronze badges

Collectives™ on Stack Overflow

PHP Iterate Through Associative Array and Get Specific Values

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related