切割中文不乱码

//设置字符编码，防止切割后乱码

header("Content-Type: text/html; charset=UTF-8");

//方式一

$test1 = '我爱中hh国阿斯顿发射点发射点wskljfhwsklfhkqwh!@#$%^&*()';
$test2 = '爱';
$arr = explode($test2, $test1);
var_dump($arr);

//方式二

$test1 = '我爱中hh国阿斯顿发射点发射点wskljfhwsklfhkqwh!@#$%^&*()';
$test2 = '/爱/';
$arr = preg_match($test2, $test1, $match);
var_dump($arr, $match);