（PHP）将数组数组从一种格式转换为另一种格式

Question

I currently have an array, created from a database, an example of which looks like the following:

Array(
    [0] => Array (
        objectid => 2,
        name => title,
        value => apple
    ),

    [1] => Array (
        objectid => 2,
        name => colour,
        value => red
    ),

    [2] => Array (
        objectid => 3,
        name => title,
        value => pear
    ),

    [3] => Array (
        objectid => 3,
        name => colour,
        value => green
    )
)

What I would like to do is group all the items in the array by their objectid, and convert the 'name' values into keys and 'value' values into values of an associative array....like below:

Array (
    [0] => Array (
        objectid => 2,
        title => apple,
        colour => red
    ),

    [1] => Array (
        objectid => 3,
        title => pear,
        colour => green
    )
)

I've tried a few things but haven't really got anywhere.. Any ideas? Thanks in advance

Answer 1

This should work with your current setup and should be able to handle as many key-value pairs as available:

<?php

$results = array(
    array('objectid' => 2, 'name' => 'title', 'value' => 'apple'), 
    array('objectid' => 2, 'name' => 'color', 'value' => 'red'),
    array('objectid' => 3, 'name' => 'title', 'value' => 'pear'), 
    array('objectid' => 3, 'name' => 'color', 'value' => 'green'));

$final = array();
foreach ($results as $result) {
    $final[$result['objectid']]['objectid'] = $result['objectid'];
    $final[$result['objectid']][$result['name']] = $result['value'];
}

print_r($final);