PHP array_column() Function
The array_column() function returns the values from a single column in the input array.
array_column() returns the values from a single column of the array, identified by the column_key. Optionally, an index_key may be provided to index the values in the returned array by the values from the index_key column of the array.
| Parameter | Description |
|---|---|
| array | A multi-dimensional array or an array of objects from which to pull a column of values from. |
| column_key | Required. An integer key or a string key name of the column of values to return. |
| index_key | Optional. The column to use as the index/keys for the returned array. This value may be the integer key of the column, or it may be the string key name. |
Example
$array = array(
array(
'id' => 101,
'first_name' => 'Prince',
'nick_name' => 'Alex',
),
array(
'id' => 102,
'first_name' => 'James',
'nick_name' => 'Lachlan',
),
array(
'id' => 103,
'first_name' => 'Samuel',
'nick_name' => 'Cooper',
)
);
$nick_names = array_column($array, 'nick_name');
print_r($nick_names);Output
Array (
[0] => Alex
[1] => Lachlan
[2] => Cooper
) More Example key and value
$array = array(
array(
'id' => 101,
'first_name' => 'Prince',
'nick_name' => 'Alex',
),
array(
'id' => 102,
'first_name' => 'James',
'nick_name' => 'Lachlan',
),
array(
'id' => 103,
'first_name' => 'Samuel',
'nick_name' => 'Cooper',
)
);
$nick_names = array_column($array, 'nick_name', 'id');
print_r($nick_names);
Output
Array (
[101] => Alex
[102] => Lachlan
[103] => Cooper
) In above examplle, get column of nick_name from a recordset, indexed by the “id” column.
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