ramsey/array_column

Provides functionality for array_column() to projects using PHP earlier than version 5.5.

Sunday, January 31, 2016
by ramsey
Repository
18 Watchers
364 Stars
1,421,858 Installations

PHP
56 Dependents
1 Suggesters
72 Forks
3 Open issues
6 Versions
8 % Grown

The README.md

array_column() for PHP

, _(*1)

This simple library provides functionality for array_column() to versions of PHP earlier than 5.5. It mimics the functionality of the built-in function in every way., _(*2)

Usage

array array_column(array $input, mixed $columnKey[, mixed $indexKey])

Given a multi-dimensional array of data, array_column() returns the values from a single column of the input array, identified by the $columnKey. Optionally, you may provide an $indexKey to index the values in the returned array by the values from the $indexKey column in the input array., _(*3)

For example, using the following array of data, we tell array_column() to return an array of just the last names, indexed by their record IDs., _(*4)

``` php <?php $records = array( array( 'id' => 2135, 'first_name' => 'John', 'last_name' => 'Doe' ), array( 'id' => 3245, 'first_name' => 'Sally', 'last_name' => 'Smith' ), array( 'id' => 5342, 'first_name' => 'Jane', 'last_name' => 'Jones' ), array( 'id' => 5623, 'first_name' => 'Peter', 'last_name' => 'Doe' ) );, _(*5)

$lastNames = array_column($records, 'last_name', 'id');, _(*6)


If we call `print_r()` on `$lastNames`, you'll see a resulting array that looks
a bit like this:

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

Installation

The easiest way to install this library is to use Composer:, _(*7)

php composer.phar require ramsey/array_column

Then, when you run composer install, everything will fall magically into place, and the array_column() function will be available to your project, as long as you are including Composer's autoloader., _(*8)

However, you do not need Composer to use this library., _(*9)

This library has no dependencies and should work on older versions of PHP. Download the code and include src/array_column.php in your project, and all should work fine., _(*10)

When you are ready to run your project on PHP 5.5, everything should continue to run well without conflicts, even if this library remains included in your project., _(*11)