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PHP preg_match（）正则表达式模式与空格匹配的问题

[英]PHP preg_match() regular expression pattern match issues with whitespace

原文 2016-04-11 13:24:56 5 1 php/ angularjs/ regex/ firefox

When checking input using preg_match() I am getting a match for invalid character in Firefox but not Chrome when user types in something like This comment basically something with a space, but if they type in Thiscomment and before submitting to server, and preg_match check , they add a space between the words it will be fine. 当使用preg_match()检查输入时，当用户键入类似于This comment基本上是在Firefox中找到了无效字符的匹配项，但是在Chrome中却没有，但是如果他们键入Thiscomment且在提交给服务器之前，则进行了preg_match check ，他们在单词之间添加空格就可以了。

Using pattern /^[a-zA-Z0-9 \\s\\.\\-]*$/ and have tried with only and without \\s and still no luck. 使用模式/^[a-zA-Z0-9 \\s\\.\\-]*$/并尝试仅使用\\ s和不使用\\ s仍然没有运气。

The content/text comes from a contentEditable table cell managed by Angular. 内容/文本来自Angular管理的contentEditable表单元格。

php 5.6 firefox/chrome latest angular 1.5 PHP 5.6 Firefox / Chrome最新角度1.5

A little more digging has shown that what is happening is firefox is inserting   进一步的挖掘表明，正在发生的事情是firefox正在插入  , basically   , once in there deleting what has been added doesn't remove it. ，基本上是  ，一旦删除，添加的内容就不会删除。 So I am experimenting with striping it out before running thru regex validation. 所以我正在尝试通过正则表达式验证之前将其剥离。

Ok, so more digging and realizing I will need to figure out how to manage this as chrome will also insert the characters when a new line is added to the text, like shift-return, which I want to support. 好的，更多的挖掘和实现工作我将需要弄清楚如何管理，因为chrome还会在向文本添加新行时插入字符，例如我希望支持的shift-return。 Will just have to manage how to store, \\n or   \\n或 将只需要管理如何存储  or   AND manage when outputing to a text, alert, or table cell etc. 或 并在输出到文本，警报或表格单元等时进行管理。

Thanks to everyone who took a look and commented. 感谢所有看过并发表评论的人。 Sorry for the noise. 对不起，噪音。

I'm gonna close this ticket now, or delete if I can't close, would like to not delete to save someone else time with this but not sure how to do this. 我现在要关闭这张票，或者，如果我无法关闭，请删除它，不想删除以节省其他人的时间，但不确定如何执行此操作。

1 个解决方案

So the basic, and now clearly obvious, issue is that the browser needs to insert something to handle line breaks, new lines, to support that feature for input. 因此，基本的问题（现在很明显）是浏览器需要插入一些东西来处理换行符和新行，以支持该功能进行输入。 Firefox is a bit odd/aggressive with it but, doesn't really matter as if I want to support ability for users to add new lines to the text it will need to be handled from all browsers. Firefox有点古怪/激进，但并不是真的无关紧要，因为我是否要支持用户向文本中添加新行的功能，因此需要在所有浏览器中进行处理。

Solution is to figure out how to manage this as chrome, and any browser, will also insert the characters when a new line is added to the text, like shift-return, which I want to support. 解决方案是弄清楚如何将其管理为chrome，并且在任何浏览器中，当我要支持的新行（如shift-return）也将插入字符时。 Will just have to manage how to store, \\n or or 只需管理存储方式，\\ n或 或
AND manage when outputing to a text, alert, or table cell etc. 输出到文本，警报或表格单元格等时进行AND管理。

So what I have done is use style="white-space: pre;" 所以我要做的是使用style="white-space: pre;" on the table cells and it renders \\n just like in an alert or textarea. 在表格单元格上，它呈现\\n就像在警报或文本区域中一样。 Got solution from angularjs newline filter with no other html 从angularjs换行过滤器获得解决方案，没有其他HTML