$images = valley_images();
var_dump($images);
$sorted_data = array();
foreach($images as $key => $value) {
if ($key == 'timestamp') {
$sorted_data[$value][] = $images;
}
}
ksort($sorted_data);
The error is appearing on this line:
$sorted_data[$value][] = $images;
When I do the var dump of images I receive this:
array(2) {
[0]=> array(2) {
["id"]=> string(2) "17" ["timestamp"]=> string(10) "1359797773"
}
[1]=> array(2) {
["id"]=> string(2) "20" ["timestamp"]=> string(10) "1359934365"
}