Return all array elements except for a given key

php associative-array
Dan Lugg picture Dan Lugg · Feb 28, 2011 · Viewed 45.7k times · Source

Simple one, I was just wondering if there is a clean and eloquent way of returning all values from an associative array that do not match a given key(s)?

$array = array('alpha' => 'apple', 'beta' => 'banana', 'gamma' => 'guava');

$alphaAndGamma = arrayExclude($array, array('alpha'));
$onlyBeta      = arrayExclude($array, array('alpha', 'gamma'));

function arrayExclude($array, Array $excludeKeys){
    foreach($array as $key => $value){
        if(!in_array($key, $excludeKeys)){
            $return[$key] = $value;
        }
    }
    return $return;
}

This is what I'm (going to be) using, however, are there cleaner implementations, something I missed in the manual perhaps?

Answer

Dev picture Dev · Oct 12, 2016

Although, this question is too old and there are several answer are there for this question, but I am posting a solution that might be useful to someone.

You may get the all array elements from provided input except the certain keys you've defined to exclude using: 

$result = array_diff_key($input, array_flip(["SomeKey1", "SomeKey2", "SomeKey3"]));

This will exclude the elements from $input array having keys SomeKey1, SomeKey2 and SomeKey3 and return all others into $result variable.

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