php中explode高级分隔字符与分隔字符串

$str = "Hello world. It's a beautiful day.";
print_r (explode(" ",$str));
?>
输出：
Array
(
[0] => Hello
[1] => world.
[2] => It's
[3] => a
[4] => beautiful
[5] => day.
)

$string="祛痘、痘印#抗氧化:活肤滋润#对抗唇纹:提拉紧致#控油:保湿#改善唇色";   

$arr=explode('#',str_replace(array(":"),'#',$string));

或者使用preg_split方法达到相同的效果

$arr = preg_split( "/ (#|:) /", $string );