Swap abbreviated versions of words/names with PHP

abbreviate.php

function apply_abbreviations($string) {
	$abbreviated_words = [
		"Teaching and Learning" => "T&L",
		"Teaching & Learning" => "T&L",
		"Human Resources" => "HR",
		"Admin" => "Administrator",
		"Asst" => "Assistant",
		"Elem" => "Elementary",
		"Sec" => "Secondary",
	];

	$simplified_string = str_replace(array_keys($abbreviated_words), array_values($abbreviated_words), $string);

	return $simplified_string;
}