价格后爆炸字符串

Question

假设我有一个字符串

$what = "1 x Book @ $20 32 x rock music cd @ $400 1 x shipping to india @ $10.5";

我想爆炸，这样输出就是

Array 
(
    [0] => 1 x Book @ $20
    [1] => 32 x rock music cd @ $400
    [2] => 1 x shipping to india @ $10.50
)

我正在考虑类似下面的内容，但不知道要使用哪个正则表达式！

 $items = preg_split('/[$????]/', $what);

提前致谢

Answer 1

试试这个：

$str = '1 x Book @ $20 32 x rock music cd @ $400 1 x shipping to india @ $10.5';
preg_match_all('/(?P<match>\d+\s+x\s+[\w\s]+\s+@\s+\$[\d\.]+)/',$str,$match);

echo "<pre>";
print_r($match['match']);

输出：

Array
(
    [0] => 1 x Book @ $20
    [1] => 32 x rock music cd @ $400
    [2] => 1 x shipping to india @ $10.5
)

另一种解决方案：

根据 Dream Eater 的评论：更小的写法：(.*?\$\d+)\s。 – Dream Eater 3 分钟前

我刚刚在最后添加了*，它工作正常。

$str = '1 x Book @ $20 32 x rock music cd @ $400 1 x shipping to india @ $10.5';
preg_match_all('/(.*?\$\d+)\s*/',$str,$match);

echo "<pre>";
print_r($match);

参考：http://php.net/manual/en/function.preg-match.php