Question

I have this array

$test = $_POST['test'];

print_r($test); 

Array
(
    [0] => Array
        (
            [id] => 26629
            [timestamp] => 1332273712
        )

    [1] => Array
        (
            [id] => 26628
            [timestamp] => 1332243526
        )

    [2] => Array
        (
            [id] => 26627
            [timestamp] => 1332237777


)

I want to get timestamp value and using a funciton to change it to something like 5 sec ago,4 hours ago and so on. The function is the easy part i’m just goin to use time() – timestamp..

Then when i get the new value have to make a new array with them that is going to content something like that

Array
(
    [0] => Array
        (
            [id] => 26629
            [content] => 5 sec ago
        )

    [1] => Array
        (
            [id] => 26628
            [content] => 4 hours ago
        )

    [2] => Array
        (
            [id] => 26627
            [content] => 1 hour ago


)

Probably i have to use foreach but i dont know how 🙁

Answer 1

You can use array_walk_recursive().

Your could could look like this:

//Make a copy of the array first, then operate on it, so that the final result is a seperate array.
$final = $test;

function transformTime(&$item, $key){

    if($key == "timestamp"){
        //Do something to $item
    }
}

array_walk_recursive($final, 'transformTime');

//Convert to JSON for XHR:
$result = json_encode($final);

Code I am testing with:

<?php

$test = array(

        array('id' => 26629, 
        'timestamp' => 1332273712),

        array('id' => 26628, 
        'timestamp' => 1332243526),

        array('id' => 26629,
        'timestamp' => 1332273712),

        array('id' => 26629,
        'timestamp' => 1332273712),
);

var_dump($test);

$final = $test;

function transformTime(&$item, $key){

    if($key == "timestamp"){
        $item = $item + 5; //Obviously you need to convert the timestamp to something friendly here.
    }
}

array_walk_recursive($final, 'transformTime');

var_dump($final);