从字符串中获取一部分 [英] Getting a part from a string

问题描述

我正在尝试从网站收集所有CatID ... URL结构是...

I am trying to collect all CatIDs from a site...the URL structure is...

http://www.abc.com/family/index.jsp? categoryId = 12436777

我对此感兴趣categoryId，在这种情况下为12436777

I am interested in it categoryId which is in this case is 12436777

我的问题是

哪一个最好，正则表达式或字符串爆炸?

Which is best, Regex or string explode??

如果使用正则表达式，请帮助我，我对此很不好..

if regex, please help me, I am very bad on it..

此外，我还必须考虑这样的网址

Also, I have to consider that URLs like

http://www.abc.com/product/index.jsp? productId = 12282785

我尝试了

$array = explode("http://www.abc.com/family/index.jsp?categoryId=", $loc); 

foreach ($array as $part) {
        $zee[] = $part[1];
}

但是它什么也没给我..

but it gives me nothing ..

感谢帮助.

推荐答案

您可以使用 parse_url 可靠地为您提供查询字符串:

You can use parse_url to reliably give you the query string:

$parts = parse_url('http://www.abc.com/family/index.jsp?categoryId=12436777');

，然后 parse_str 解析出变量:

parse_str($parts['query'], $result);
echo $result['categoryId']; // outputs 12436777

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