Question

How to get all values of a specific column in a multidimensional array with PHP

Answer 1

$arr = array(
    array('language'=>'JavaScript', 'code'=>1298, 'level'=>2),
    array('language'=>'PHP', 'code'=>9814, 'level'=>1),
    array('language'=>'Java', 'code'=>5621, 'level'=>4),
    array('language'=>'C#', 'code'=>1111, 'level'=>5)
);
  
$result_arr = array_map(function($value) {
    return  $value['language'];
}, $arr);


echo "<pre>";
print_r($result_arr);
echo "</pre>";
 

  
  
/*
run:
          
Array
(
    [0] => JavaScript
    [1] => PHP
    [2] => Java
    [3] => C#
)
 
*/

 

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Answer 2

$arr = array(
    array('language'=>'JavaScript', 'code'=>1298, 'level'=>2),
    array('language'=>'PHP', 'code'=>9814, 'level'=>1),
    array('language'=>'Java', 'code'=>5621, 'level'=>4),
    array('language'=>'C#', 'code'=>1111, 'level'=>5)
);
  
$result_arr = array_map(function($value) {
    return  $value['language'];
}, $arr);


for ($i = 0; $i < count($result_arr); $i++) {
     echo $result_arr[$i] . "<br />";
}
 

  
  
/*
run:
          
JavaScript
PHP
Java
C#

*/

 

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Answer 3

$arr = array(
    array('language'=>'JavaScript', 'code'=>1298, 'level'=>2),
    array('language'=>'PHP', 'code'=>9814, 'level'=>1),
    array('language'=>'Java', 'code'=>5621, 'level'=>4),
    array('language'=>'C#', 'code'=>1111, 'level'=>5)
);
  
$result_arr = array_column($arr, 'language');


for ($i = 0; $i < count($result_arr); $i++) {
     echo $result_arr[$i] . "<br />";
}


  
/*
run:
          
JavaScript
PHP
Java
C#

*/

 

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