检查字符串是否定义格式并获取其中的一部分(Check string for defined format and get part of it)

检查字符串是否定义格式并获取其中的一部分(Check string for defined format and get part of it)

如何检查字符串是否具有格式[group|any_title]并将标题返回给我？

[group|This is] -> This is [group|just an] -> just an [group|example] -> example

我会用explode和[group| 作为分隔符并删除最后一个] 。 如果（爆炸的）长度> 0，则字符串具有正确的格式。

但我认为这不是一个好方法，不是吗？

How can I check if a string has the format [group|any_title] and give me the title back?

[group|This is] -> This is [group|just an] -> just an [group|example] -> example

I would do that with explode and [group| as the delimiter and remove the last ]. If length (of explode) is > 0, then the string has the correct format.

But I think that is not quite a good way, isn't it?

最满意答案

所以你想检查字符串是否匹配正则表达式？

if(preg_match('/^\[group\|(.+)\]$/', $string, $m)) { $title = $m[1]; }

如果group部分也应该是动态的：

if(preg_match('/^\[(.+)\|(.+)\]$/', $string, $m)) { $group = $m[1]; $title = $m[2]; }

So you want to check if a string matches a regex?

if(preg_match('/^\[group\|(.+)\]$/', $string, $m)) { $title = $m[1]; }

If the group part is supposed to be dynamic as well:

if(preg_match('/^\[(.+)\|(.+)\]$/', $string, $m)) { $group = $m[1]; $title = $m[2]; }