PHP从数组中选择唯一值

Question

Using PHP and MySQL I have generated an array (from an API lookup). A var_dump of the array can her seen here .

I would like to return only unique 'title' values from this array.

My code so far is;

foreach($response["Items"]["Item"] as $item)
{
    $title = $item["ItemAttributes"]["Title"];
}

A var_dump of $title produces;

string(5) "Panic" string(5) "Panic" string(73) "Captain Flinn and the Pirate Dinosaurs: Missing Treasure! (Captain Flinn)"

You can see that there are two string values named "Panic".

I have tried array_unique but can't seem to get it working.

Any help is appreciated. Thanks

Answer 1

Try with this trick: if title is already present it will not added.

$titlesFounded = [];

foreach($response["Items"]["Item"] as $item) {
    if (!in_array($item["ItemAttributes"]["Title"], $titlesFounded)) {
        $titlesFounded[] = $item["ItemAttributes"]["Title"];
    }
}