Convert array into simple 1 level array in PHP

Question

A simple thing to do, but I forgot how to convert

Array
(
    [0] => Array
        (
            [hashcode] => 952316176c1266c7ef1674e790375419
        )

    [1] => Array
        (
            [hashcode] => 5b821a14c98302ac40de3bdd77a37ceq
        )

)

into this:

Array (952316176c1266c7ef1674e790375419, 5b821a14c98302ac40de3bdd77a37ceq)

score 5 · Answer 1 · answered Mar 27 '13 at 13:51

5

I know this is premature but since this is coming soon I figured I throw this out there. As of (the not yet released) PHP 5.5 you can use array_column():

 $hashcodes = array_column($array, 'hashcode');

answered Mar 27 '13 at 13:51

John Conde

217,595
99
455
496

Prasanth Bendra · Accepted Answer · 2013-03-27T13:53:30.880

4

Try this :

$array  = array(array("test"=>"xcxccx"),array("test"=>"sdfsdfds"));

$result = call_user_func_array('array_merge', array_map("array_values",$array));

echo "<pre>";
print_r($result);

Output:

Array
(
    [0] => xcxccx
    [1] => sdfsdfds
)

edited Mar 27 '13 at 13:53

answered Mar 27 '13 at 13:48

Prasanth Bendra

31,145
9
53
73

Edited the answer please check it now – Prasanth Bendra Mar 27 '13 at 13:53
at risk of asking a stupid question, this seems like magic, how does it work? @Prasanth Bendra – Todd Mar 27 '13 at 15:16
It is like this : `array_map("array_values",$array)` this fetches all the values from inner array, and `array_merge` merges all these to a single array. Simple !!! :) – Prasanth Bendra Mar 28 '13 at 04:37
Ref: `array_map`, `array_values`, `array_merge` and `call_user_func_array` in php.net – Prasanth Bendra Mar 28 '13 at 04:54

score 2 · Answer 3 · answered Mar 27 '13 at 13:52

2

A good ol' loop solves :)

<?php

$array = array(
    array( 'hashcode' => 'hash' ),  
    array( 'hashcode' => 'hash2' ), 
);

$flat = array();

foreach ( $array as $arr ) {
    $flat[] = $arr['hashcode'];
}

echo "<pre>";

print_r( $flat );

?>

answered Mar 27 '13 at 13:52

kjetilh

4,821
2
18
24

I would say that this is a more elegant way to solve this, here is a similar example http://codepad.viper-7.com/ST6fSo i just wrote. – Ogelami Mar 27 '13 at 13:53
@Ogelami I'm still seeing a multidimensional array on the link posted. – Daryl Gill Mar 27 '13 at 13:54

@DarylGill thats odd, i don't i didn't use

 tags, and i used 2 print_r's can it be that?
Here is the same code but with 's.
http://codepad.viper-7.com/g9lD5e

– Ogelami Mar 27 '13 at 13:56

score 0 · Answer 4 · answered Mar 27 '13 at 13:54

$source = array(
    array(
        'hashcode' => '952316176c1266c7ef1674e790375419'
    ),
    array(
        'hashcode' => '5b821a14c98302ac40de3bdd77a37ceq'
    )
);

$result = array();
array_walk($source, function($element) use(&$result){
    $result[] = $element['hashcode'];
});

echo '<pre>';
var_dump($result);

Convert array into simple 1 level array in PHP

4 Answers4

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