如何使用正则表达式忽略文本中的空格和回车符
我对 stackoverflow 很陌生，所以我不知道以前是否有人问过这个问题，但我似乎找不到任何过去的问题暗示答案。非常感谢任何帮助，并提前致谢。
我有这样的文本：
{
1282837200, -- [1]
"Type", -- [2]
"Name", -- [3]
"Reason", -- [4]
Amount, -- [5]
}, -- [1]
{
1282838220, -- [1]
"Type", -- [2]
"Name", -- [3]
"Reason", -- [4]
Amount, -- [5]
}, -- [2]
我需要为其创建正则表达式并提取必要的数据。我了解如何使用 PHP 中的正则表达式、使用没有“空格”或回车符的源文本从源文件中提取数据。
但我需要帮助创建一个包含该源代码中包含的空格等的表达式。
Im quite new to stackoverflow so I dont know if this question has been asked before, but I cant seem to find any past questions which hint at the answer. Any help is really appreciated and thanks in advance.
I have this text:
{
1282837200, -- [1]
"Type", -- [2]
"Name", -- [3]
"Reason", -- [4]
Amount, -- [5]
}, -- [1]
{
1282838220, -- [1]
"Type", -- [2]
"Name", -- [3]
"Reason", -- [4]
Amount, -- [5]
}, -- [2]
Which I need to create a regular expression for and extract the necessary data. I understand how to extract data from source files using regular expressions within PHP, using source text which has no "whitespace" or carriage returns.
But I need help with creating an expression which includes the whitespace etc. included within this source.
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（2）
\s是空白符号，可能包含换行符，也可能不包含换行符，无论如何都有[\r\n]，忽略这些就可以了。您还可以告诉您到底想做什么，甚至发布您到目前为止拥有的正则表达式，以便如果您愿意，我可以进一步帮助您。编辑：我只是猜测，您想要的正则表达式可能是这样的：
这匹配一个块并忽略括号中的数字。
/m开关触发多行模式。\sis the symbol for whitespace, which may or may not include newlines, anyway there's[\r\n]for them, ignore these and that's it. You could also tell what exactly you want to do or even post the regex you have so far so I can help you further if you want.EDIT: I'm just guessing, the regexp you want may be this:
This matches one block and disregards the numbers in brackers.
/mswitch triggers multiline mode.如果您只是尝试删除所有空格，请尝试以下操作：
$string = preg_replace('/\s+/s', '', $string);。\s+匹配一个或多个空格、制表符和换行符。/s中的s告诉正则表达式将字符串视为一个整体，而不是一次一行。If you're trying to simply remove all whitespace, try the following:
$string = preg_replace('/\s+/s', '', $string);.\s+matches one or more spaces, tabs, and newlines. Thesin/stells the regex to look at the string as a whole as opposed to one line at a time.