Combine two array and order this new array by date

Question

. I have two array

First One

 Array
    (
        [0] => Array
            (
                [date] => 2012-01-10
                [result] => 65         


        

Answer 1

array_merge your arrays and then use the following code as an example of how you can sort it.

function sortDate($val1, $val2)
{
    if ($val1['date'] == $val2['date']) {
        return 0;
    }

    return (strtotime($val1['date']) < strtotime($val2['date'])) ? -1 : 1;
}

$array = array(
    array('date' => '2012-01-10'),
    array('date' => '2011-01-10'),
    array('date' => '2012-01-01')
);

usort($array, "sortDate");
print_r($array);

Answer 2

array_merge and usort is your friend.

function cmp($a, $b){
    $ad = strtotime($a['date']);
    $bd = strtotime($b['date']);
    return ($ad-$bd);
}
$arr = array_merge($array1, $array2);
usort($arr, 'cmp');

Answer 3

Use array_merge() to combine the arrays, and then use sort to sort() to sort them, very simple. Would you like an example?

This should sort it for you:

function dateSort($a,$b){
    $dateA = strtotime($a['date']);
    $dateB = strtotime($b['date']);
    return ($dateA-$dateB);
}

$arrayOne = array(
    array(
        'date'      => '2012-01-10',
        'result '   => 65,
        'name'      => 'Les océans'
    ),
    array(
        'date'      => '2012-01-11',
        'result '   => 75,
        'name'      => 'Les mers'
    ),
    array(
        'date'      => '2012-01-13',
        'result '   => 66,
        'name'      => 'Les continents',
        'type'      => 'Scores'
    )
);

$arrayTwo = array(
    array(
        'date'      => '2012-01-12',
        'result '   => 60,
        'name'      => 'Step#1',
        'type'      => 'Summary'
    )
);

// Merge the arrays
$combinedArray = array_merge($arrayOne,$arrayTwo);

// Sort the array using the call back function
usort($combinedArray, 'dateSort');