Convert 2 dimensional array into single array

Question

I want to covert below array into single array. This is the my array code as below:

Array
 (
 [0] => Array
 (
 [label] => 
 [value] => 
 )
 [1] => Array
 (
 [value] => 4
 [label] => 0.5
 )
 [2] => Array
 (
 [value] => 5
 [label] => 0.6
 )
 )

Want below result:

 Array(
 '4' => '0.5',
 '5' => '0.6',
 );

• Nirbhav Gupta: Try this: $single_array = array(); foreach($array as $keys => $values){ $single_array[$values['label']] = $values['value']; }
• Mark Baker: $result = array_column($originalArray, 'label', 'value');
• Purushotam Sharma: @Nirbhav Gupta: Thanks your answer works for me thanks, please add this in answer I will up vote for this

Answer 1

Try this:

$single_array = array();
foreach($array as $keys => $values){ 
 $single_array[$values['label']] = $values['value'];
}

Use can use filter like not empty or null as you want.

Answer 2

Try this:

$array = array(
 array('value' => '', 'label' => ''),
 array('value' => 4, 'label' => 0.5),
 array('value' => 5, 'label' => 0.6)
);
$new_array = array();
foreach($array as $item_array){
 if(!empty($item_array['value'])){
 $new_array[$item_array['value']] = $item_array['label'];
 }
}
print_r($new_array);

Answer 3

You can make use of following functions :

array_column() — Return the values from a single column in the input array

array_combine() — Creates an array by using one array for keys and another for its values

array_filter() — Filters elements of an array using a callback function, If no callback is supplied, all entries of array equal to FALSE (see converting to boolean) will be removed.

Script

akshay@db-3325:/tmp$ cat test.php 
<?php
$array = array(
 array('value' => '', 'label' => ''),
 array('value' => 4, 'label' => 0.5),
 array('value' => 5, 'label' => 0.6)
);
/* make use of array_column and array_combine */
print_r( array_combine( array_column($array, 'value'), array_column($array, 'label') ) );
/* to remove empty elements use array_filter */
print_r( array_filter( array_combine( array_column($array, 'value'), array_column($array, 'label') ) ) );
?>

Output

akshay@db-3325:/tmp$ php test.php 
Array
(
 [] => 
 [4] => 0.5
 [5] => 0.6
)
Array
(
 [4] => 0.5
 [5] => 0.6
)