在php中爆炸一个字符串，不包括＆＃39;，＆＃39;在括号内

Question

我有一串这个 -

$str = "field1.id as field1, 
       DATE_SUB(field2, INTERVAL (DAYOFMONTH(field2)-1) DAY) as field2,   
       field3.name as field3";

需要explode将,与$requiredArray = array( 0 => field1.id as field1, 1 => DATE_SUB(field2, INTERVAL (DAYOFMONTH(field2)-1) DAY) as field2 2 => field3.name as field3 ); 格式化为数组：

$requiredArray = explode(', ', $str); 
// doesn't work as "DATE_SUB(field2, INTERVAL ..." also gets exploded

我尝试过爆炸，但它不起作用：

{{1}}

任何技巧/想法？

Answer 1

试试这个：

preg_match_all('~(.*)[^(],?~', $str, $matches);