如何得到两个指定字符串之间的内容？

Question

$a = "ShowMsg=QQ%E4%BC%9A%E5%91%98%EF%BC%8C%E3%81%90.%26%23039%3BHHH%26nbsp%3B%5C%26nbsp%3B%26nbsp%3B%26nbsp%3Bm&NickName=%E3%81%90.%26%23039%3BHHH%26nbsp%3B%5C%";想得到ShowMsg=和NickName之间的字符串。substr不好用了

Answer 1

preg_match('/ShowMsg=(.*)NickName/',$a,$arr);
echo $arr[1];

Answer 2

$a = "ShowMsg=QQ%E4%BC%9A%E5%91%98%EF%BC%8C%E3%81%90.%26%23039%3BHHH%26nbsp%3B%5C%26nbsp%3B%26nbsp%3B%26nbsp%3Bm&NickName=%E3%81%90.%26%23039%3BHHH%26nbsp%3B%5C%";
parse_str($a,$array);
print_r($array);Array
(
    [ShowMsg] => QQ浼氬憳锛屻亹.'HHH \   m
    [NickName] => 銇?'HHH \%
)

Answer 3

刚才上不来CSDN。自己解决了
$a =  "ShowMsg=QQ%E4%BC%9A%E5%91%98%EF%BC%8C%E3%81%90.%26%23039%3BHHH%26nbsp%3B%5C%26nbsp%3B%26nbsp%3B%26nbsp%3Bm&NickName";
$b = '';
preg_match('/ShowMsg=(.+)NickName/iU', $a, $b );
echo $b[1];谢谢各位大哥

Answer 4

是一对一对的，
以&分为数组。然后再以=分为数组。那么想怎么拿就怎么拿。

Answer 5

parse_str($a);
echo $ShowMsg;

Answer 6

parse_str!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!