Sanitize input data

sanitize_input.php

function cleanInputData(){
	$sanitized = array();
	foreach($_POST as $cur){
		$str = trim($cur);
		$str = mb_convert_encoding($str, 'UTF-8', 'UTF-8');
		$str = htmlentities($str, ENT_QUOTES, 'UTF-8');
		array_push($sanitize, $str);
	}
	return $sanitized;
}