A very useful PHP array function

Array_column

This function is useful and can be called directly in PHP 5.5.

Have the following two-dimensional array, such as to extract specific items from each sub-array.

<?PHP//Array representing a possible record set returned from a database$records=Array(    Array(        ' id ' = 2135, ' first_name ' and ' John ', ' last_name ' and ' Doe ',    ),Array(        ' id ' = = 3245, ' first_name ' = ' Sally ', ' last_name ' and ' Smith ',    ),Array(        ' id ' = 5342, ' first_name ' = ' Jane ', ' last_name ' and ' Jones ',    ),Array(        ' id ' = 5623, ' first_name ' and ' Peter ', ' last_name ' and ' Doe ',    )); $first _names= Array_column ($records, ' first_name ');Print_r($first _names);?>

return only First_Name

Array (    [0] = John    [1] = Sally    [2] = Jane    [3] = = Peter)

If the third argument is a key name

Array_column ($records, ' last_name ', ' id ');

Return:

Array (    [2135] = Doe    [3245] = Smith    [5342] = Jones    [5623] = > Doe)

A very useful PHP array function