New array functions in PHP 8.4: Making them available in earlier versions

PHP 8.4 is coming soon, and it will introduce a few new and useful functions. In WP core, there have historically been so-called pluggable functions, allowing WP plugins and themes to use new functions as long as WP is running on a certain version. Here is my take on the new functions in PHP 8.4:

if(!function_exists('array_find')){
	function array_find(array $array, callable $callback){
		foreach($array as $value){
			if($callback($value)){
				return $value;
			}
		}
		return null;
	}
}

if(!function_exists('array_find_key')){
	function array_find_key(array $array, callable $callback){
		foreach($array as $key => $value){
			if($callback($value)){
				return $key;
			}
		}
		return null;
	}
}

if(!function_exists('array_any')){
	function array_any(array $array, callable $callback){
		foreach($array as $value){
			if($callback($value)){
				return true;
			}
		}
		return false;
	}
}

if(!function_exists('array_all')){
	function array_all(array $array, callable $callback){
		foreach($array as $value){
			if(!$callback($value)){
				return false;
			}
		}
		return true;
	}
}

To test it, here is some code you can run to see how it behaves.

$array = [1, 3, -7, 9];

// 1. array_find: Find the first negative number in the array
$found = array_find($array, function($value){
    return $value < 0;
});
echo "First negative number: " . ($found !== null ? $found : "None found") . "\n"; 
// Output: First negative number: -7

// 2. array_find_key: Find the key of the first negative number
$found_key = array_find_key($array, function($value){
    return $value < 0;
});
echo "Key of first negative number: " . ($found_key !== null ? $found_key : "None found") . "\n";
// Output: Key of first negative number: 2

// 3. array_any: Check if any number in the array is negative
$any_negative = array_any($array, function($value){
    return $value < 0;
});
echo "Any negative number: " . ($any_negative ? "Yes" : "No") . "\n";
// Output: Any negative number: Yes

// 4. array_all: Check if all numbers in the array are positive
$all_positive = array_all($array, function($value){
    return $value > 0;
});
echo "All positive numbers: " . ($all_positive ? "Yes" : "No") . "\n";
// Output: All positive numbers: No

If this makes it into WP core soon, it will be great for implementing these functions into the plugins and themes codebase.