Is there a PHP function to remove any/all key/value pairs that have a certain value from an array?

Question

I think questions like this are the reason why I don\'t like working with PHP. The manual is good, if you can find what you are looking for. After reading through the Array Func

Answer 1

array_diff is what you want.

$array1 = array("a" => "green", "red", "blue", "red");
$array2 = array("b" => "green", "yellow", "red");
$result = array_diff($array1, $array2);

Result: "blue".