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
                


        

Answer 1

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
)

Answer 2

$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);

Answer 3

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');

Answer 4

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 );

?>