PHP Array column() Function
It is an inbuilt function in PHP. The array_column() function is used to return the values from a single column in the input array. This function is introduced in PHP 5.5.
Syntax
array_column(array,column_key,index_key);
Parameters
| Parameter | Description | Is compulsory |
|---|---|---|
| Column_key | This parameter may be an integer or a string key name of the column of values to return. It may also be NULL to return complete arrays (useful together with index_key to re-index the array) | Compulsory |
| index_key | This parameter may be an integer key or a string key name of the column. It is used to provide the index/keys for the returned array | Optional |
PHP Example
<?php
$multi = array( "sid" => array( "firstname" => "sid", "country" => "united states of america" ),
"sonoo" => array( "firstname"=> "sonoo", "country"=> "london" ) );
$arrcol = array_column($multi, 'firstname');
print_r($arrcol);
?>
Output
Array( [0] => sid [1] => sonoo )
PHP Example
<?php
$record = array( array ( 'regno' => 101, 'name' => 'sid', 'course' => 'c', ),
array( 'regno' => 102, 'name' => 'ajay', 'course' => 'java', ),
array( 'regno' => 103, 'name' => 'rahul', 'course' => 'php', ) );
$details = array_column($record, 'course');
print_r($details);
?>
Output
Array ( [0] => c [1] => java [2] => php )
PHP Example
<?php
$record = array( array( 'id' => 11, 'name' => 'ajay', 'course' => 'C', ),
array( 'id' => 12, 'name' => 'rahul', 'course' => 'PHP', ),
array( 'id' => 13, 'name' => 'abhi', 'course' => 'Java', ) );
$details = array_column($record, 'course', 'id');
print_r($details);
?>
Output
Array ( [11] => c [12] => php [13] => java )
PHP Example
<?php
function Column($details)
{
$rec = array_column($details, 'hobby');
return $rec;
}
$details = array( array( 'roll' => 5, 'name' => 'Ashish', 'hobby' => 'Cricket',),
array( 'roll' => 1, 'name' => 'Ajay', 'hobby' => 'Football', ),
array( 'roll' => 3, 'name' => 'Abhishek','hobby' => 'Chess', ),
);
print_r(Column($details));
?>
Output
Array ( [0] => Cricket [1] => Football [2] => Chess )