PHP Array and unset function

Question

I have an array like this.

    Array
    (
        [0] => Array
            (
                [email] => [email protected]
                [timestamp] => 2013-05-03 09:20:01
            )

        [1] => Array
            (
                [email] => [email protected]
                [timestamp] => 2013-05-03 09:20:23
            )

        [2] => Array
            (
                [email] => [email protected]
                [timestamp] => 2013-05-03 09:20:43
            )

    )

I want this to be as simple as like this.

    Array
    (
        [0] => [email protected]
        [1] => [email protected]
        [2] => [email protected]
    )

I have tried unset function but it still doesn't work as i expected.

I am not big into array concept and hence my stupid questions !!! :(

Zbigniew · Accepted Answer · 2013-05-03 11:06:31Z

6

I think that it'd be better to use array_map instead of unset:

function filter($x)
{
    return $x['email'];
}

$emails = array_map('filter', $your_array);

This basically will map your input array into output array using filter function.

answered May 3, 2013 at 11:06

Zbigniew

27.6k6 gold badges62 silver badges68 bronze badges

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

Comments

DonCallisto · Accepted Answer · 2013-05-03 11:06:52Z

3

foreach($foo as $key=>$value)
{
  $foo[$key] = $value['email'];
}

answered May 3, 2013 at 11:06

DonCallisto

30k9 gold badges74 silver badges104 bronze badges

1 Comment

DonCallisto Over a year ago

@hjaffer2001: you should consider to accept walkhand answer. Filter is better and more elegant respect this "flat-foreach" :)

nvanesch · Accepted Answer · 2013-05-03 11:06:56Z

1

Simply pick from your old array what you want and put it in a new one.

$newArray = array();
foreach($oldArray as $containedArray)
{
  $newArray[] = $containedArray['email'];
}

var_dump($newArray);

answered May 3, 2013 at 11:06

nvanesch

2,60016 silver badges25 bronze badges

Comments

Birju Shah · Accepted Answer · 2013-05-03 11:21:02Z

1

<?php
 $array = Array
    (
        Array
            (
                email => '[email protected]',
                timestamp => '2013-05-03 09:20:01'
            ),

        Array
            (
                email => '[email protected]',
                timestamp => '2013-05-03 09:20:23'
            ),

        Array
            (
                email => '[email protected]',
                timestamp => '2013-05-03 09:20:43'
            ),

);


foreach ($array as $array){
   $newArray[] = $array['email'];
}

var_dump($newArray);

edited May 3, 2013 at 11:21

answered May 3, 2013 at 11:14

Birju Shah

1,2209 silver badges18 bronze badges

Comments

user4035 · Accepted Answer · 2013-05-03 11:10:00Z

0

There is no need to unset anything. Just assign the appropriate value:

<?php
$array = array(
      array(
            "email" => '[email protected]',
            "timestamp" => 2,
            ),
      array(
            "email" => '[email protected]',
            "timestamp" => 3,
            ),
);

foreach($array as $key => $value)
{
      $array[$key] = $value["email"];
}

var_dump($array);

answered May 3, 2013 at 11:10

user4035

24k11 gold badges69 silver badges101 bronze badges

Comments

Shijin TR · Accepted Answer · 2013-05-03 11:22:09Z

0

Try this,

 <?php
  $array= array(
    0 => array
        (
           'email' => '[email protected]',
            'timestamp' =>' 2013-05-03 09:20:01'
        ),

    1 => array
        (
            'email'=> '[email protected]',
            'timestamp' => '2013-05-03 09:20:23'
        ),

    2 => array
        (
            'email'=> '[email protected]',
            'timestamp' => '2013-05-03 09:20:43'
        )

 );

foreach($array as $key => $data)
{
$array[$key]=$data['email'];
}
  print_r($array);

?>

You will get

   Array
    (
     [0] => [email protected]
     [1] => [email protected]
     [2] => [email protected]
    )

answered May 3, 2013 at 11:22

Shijin TR

7,80911 gold badges64 silver badges126 bronze badges

Collectives™ on Stack Overflow

PHP Array and unset function

6 Answers 6

Comments

1 Comment

Comments

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

6 Answers 6

Comments

1 Comment

Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related