从数组中删除多个值

Question

I have the following array:

array(5) { 
    ["destino"]=> string(11) "op_list_gen" 
    ["id_terminal"]=> string(0) "" 
    ["marca"]=> string(2) "--" 
    ["tipo"]=> string(2) "--" 
    ["lyr_content"]=> string(14) "aawaw"
}

How can I remove the values "--" and empty values from the array?

I have tried using a foreach and removing the elements found with unset but it´s not working.

foreach ($array as $key => $arra) {
        if(array_key_exists('--', $array)){ 
            unset($arra[$key]);
        }
}

Answer 1

You can use array_filter to solve this:

$arr = [
    "destino" => "op_list_gen",
    "id_terminal" => "",
    "marca" => "--",
    "tipo" => "--",
    "lyr_content" => "aawaw"
];

$newArr = array_filter($arr, function($value) {
    return !in_array($value, ['', '--']);
});

demo: https://ideone.com/oot7lZ