How to combine these two PHP arrays ?
- by Annan
I have two arrays in php that are part of an image management system.
weighted_images A multidimensional array. Each sub array is an associative array with keys of 'weight' (for ordering by) and 'id' (the id of the image).
array(
156 => array('weight'=>1, 'id'=>156),
784 => array('weight'=>-2, 'id'=>784),
)
images This array is user input. It's an array of image ids.
array(784, 346, 748)
I want to combine them in to a single array of ids ordered by the weight of the image. If an image doesn't have a weight append to the end.
It's not a particularly hard problem however my solution is far from elegant and can't help thinking that there must be a better way to do this.
$t_images = array();
foreach ($weighted_images as $wi) {
if ( in_array($wi['id'], $images) ) {
$t_images[$wi['weight']] = $wi['id'];
}
}
foreach ($images as $image) {
if ( !$weighted_images[$image] ) {
$t_images[] = $image;
}
}
$images = $t_images;
Question: Is there a better way to do this?
