php 如何从字符串中删除 <br /> 标签等？
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How to remove <br /> tags and more from a string?
提问by Pekka
I need to strip all <br />and all 'quotes' (") and all 'ands' (&) and replace them with a space only ...
我需要去除所有<br />和所有“引号”（"）和所有“和”（&）并仅用空格替换它们......
How can I do this? (in PHP)
我怎样才能做到这一点？（在 PHP 中）
I have tried this for the <br />:
我已经尝试过这个<br />：
$description = preg_replace('<br />', '', $description);
But it returned <>in place of every <br />...
但它<>代替了每个<br />......
Thanks
谢谢
采纳答案by Konamiman
To manipulate HTML it is generally a good idea to use a DOM aware tool instead of plain text manipulation tools (think for example what will happen if you enounter variants like <br/>, <br />with more than one space, or even <br>or <BR/>, which altough illegal are sometimes used). See for example here: http://sourceforge.net/projects/simplehtmldom/
为了操作 HTML，使用 DOM 感知工具而不是纯文本操作工具通常是一个好主意（例如，如果您遇到像<br/>、<br />多个空格，甚至<br>或等变体会发生什么<BR/>，有时使用这些变体是 非法的）。例如，请参见此处：http: //sourceforge.net/projects/simplehtmldom/
回答by Thevsuman
<?php
$text = '<p>Test paragraph.</p><!-- Comment --> <a href="#fragment">Other text</a>';
echo strip_tags($text);
echo "\n";
// Allow <p> and <a>
echo strip_tags($text, '<p><a>');
?>
回答by Gordon
If str_replace()isnt working for you, then something else must be wrong, because
如果不str_replace()适合你，那么一定是别的什么地方出了问题，因为
$string = 'A string with <br/> & "double quotes".';
$string = str_replace(array('<br/>', '&', '"'), ' ', $string);
echo $string;
outputs
产出
A string with double quotes .
Please provide an example of your input string and what you expect it to look like after filtering.
请提供输入字符串的示例以及过滤后的外观。
回答by Vincent Ramdhanie
You can use str_replacelike this:
您可以像这样使用str_replace：
str_replace("<br/>", " ", $orig );
preg_replace etc uses regular expressions and that may not be what you want.
preg_replace 等使用正则表达式，这可能不是您想要的。
回答by Pekka
To remove all permutations of br:
要删除 br 的所有排列：
<br> <br /> <br/> <br >
check out the user contributed strip_only()function in
查看用户贡献的strip_only()功能
The "Use the DOM instead of replacing" caveat is always correct, but if the task is really limited to these three characters, this should be o.k.
“使用 DOM 而不是替换”警告总是正确的，但如果任务真的仅限于这三个字符，这应该没问题
回答by Art3mk4
Try this:
尝试这个：
$description = preg_replace('/<br \/>/iU', '', $description);
回答by pete
This worked for me, to remove <br/>:
这对我有用，可以删除<br/>：
(>is recognised whereas > isn't)
(>被识别而 > 不是)
$temp2 = str_replace('<','', $temp);
// echo ($temp2);
$temp2 = str_replace('/>','', $temp2);
// echo ($temp2);
$temp2 = str_replace('br','', $temp2);
echo ($temp2);
