php strip_tags() .... 用空格替换标签而不是删除它们
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strip_tags() .... replace tags by space rather than deleting them
提问by Jakob Alexander Eichler
Do you know how to replace html tags with a space character using php?
你知道如何使用php用空格字符替换html标签吗？
If I display
如果我显示
strip_tags('<h1>Foo</h1>bar');
I get as result "foobar" but what I need to keep words separate is "foo bar".
我得到的结果是“foobar”，但我需要将单词分开是“foo bar”。
回答by user40521
$string = '<h1>Foo</h1>bar';
$spaceString = str_replace( '<', ' <',$string );
$doubleSpace = strip_tags( $spaceString );
$singleSpace = str_replace( ' ', ' ', $doubleSpace );
回答by Rezigned
Try this.
尝试这个。
preg_replace('#<[^>]+>#', ' ', '<h1>Foo</h1>bar');
回答by Ciantic
Preg replace is fine most of the cases, there is that one corner case, as discussed here. This should work for both:
Preg 替换在大多数情况下都很好，只有一种极端情况，如此处所讨论的。这应该适用于两者：
strip_tags(str_replace('<', ' <', $str));
strip_tags(str_replace('<', ' <', $str));
Adding a space before any tag is valid in HTML. It too has some caveats like if your text has "<" for some reason and don't want to add space before it.
在 HTML 中任何标记之前添加一个空格都是有效的。它也有一些警告，比如如果你的文本出于某种原因有“<”并且不想在它之前添加空格。
回答by mgraph
try this:
尝试这个：
$str = '<h1>Foo</h1>bar';
echo trim(preg_replace('/<[^>]*>/', ' ', $str));
回答by tomazahlin
I helped my self with example from user40521, but I made a function with same api like php's strip_tags, it does not use multiple variables, and it also makes a trim, so a single whitespace is removed from start / end.
我用来自 user40521 的例子帮助了我自己，但我用与 php 的 strip_tags 相同的 api 制作了一个函数，它不使用多个变量，而且还进行了修剪，因此从开始/结束中删除了一个空格。
/**
* @param string $string
* @param string|null $allowable_tags
* @return string
*/
function strip_tags_with_whitespace($string, $allowable_tags = null)
{
$string = str_replace('<', ' <', $string);
$string = strip_tags($string, $allowable_tags);
$string = str_replace(' ', ' ', $string);
$string = trim($string);
return $string;
}
回答by Draguuun wra
preg_replace('#\<(.+?)\>#', ' ', $text);
Bit late with answer but try this one, basically selects everything inside <> including the tags.
回答晚了，但试试这个，基本上选择 <> 内的所有内容，包括标签。
回答by jmh
Something like this will work if you know that >won't be in any of your attributes.
如果您知道这>不会出现在您的任何属性中，这样的事情就会起作用。
preg_replace('/<[^>]+>/', ' ', 'hello<br>world');
preg_replace('/<[^>]+>/', ' ', 'hello<br>world');
回答by pmrotule
With the Regex solution preg_replace('/<[^>]*>/', ' ', $str), it's not gonna work if you have event attributes like this:
使用 Regex 解决方案preg_replace('/<[^>]*>/', ' ', $str)，如果您有这样的事件属性，它将无法工作：
<button onclick="document.getElementById('alert').innerHTML='<strong>MESSAGE</strong>';">
click</button>
You need to do one more replacement:
您需要再进行一次替换：
<?php
$str =
"<div data-contents=\"<p>Hello!</p>\">Hi.</div>".
"Please<button onclick=\"document.getElementById('alert').innerHTML='".
"<strong>MESSAGE</strong>';\">click</button>here.";
$event =
"onafterprint|onbeforeprint|onbeforeunload|onerror|onhaschange|onload|onmessage|".
"onoffline|ononline|onpagehide|onpageshow|onpopstate|onresize|onstorage|onunload|".
"onblur|onchange|oncontextmenu|onfocus|oninput|oninvalid|onreset|onselect|onsubmit|".
"onkeydown|onkeypress|onkeyup|onclick|ondblclick|ondrag|ondragend|ondragenter|".
"ondragleave|ondragover|ondragstart|ondrop|onmousedown|onmouseenter|onmousemove|".
"onmouseleave|onmouseout|onmouseover|onmouseup|onscroll|onabort|oncanplay|".
"oncanplaythrough|oncuechange|ondurationchange|onemptied|onended|onerror|".
"onloadeddata|onloadedmetadata|onloadstart|onpause|onplay|onplaying|onprogress|".
"onratechange|onseeked|onseeking|onstalled|onsuspend|ontimeupdate|onvolumechange|".
"onwaiting|data-[^=]+";
$str = preg_replace("/<([^>]+)(".$event.")=(\"|')(?:(?!\3).)+\3/", "<", $str);
$str = preg_replace("/<[^>]*>/", " ", $str);
echo $str;
// with only strip_tags:
// Hi.Pleaseclickhere.
// with event and data attributes removal + regex tags removal:
// Hi. Please click here.
// with only regex tags removal:
// Hello! ">Hi. Please MESSAGE ';">click here.
?>
Hope it helps!
希望能帮助到你！
回答by Baba
You can try
你可以试试
$str = '<h1>Foo</h1>bar';
var_dump(replaceTag($str,array("h1"=>"div")));
Output
输出
string '<div>Foo</div>bar' (length=17)
Function Used
使用的功能
function replaceTag($str,$tags) {
foreach ( $tags as $old => $new )
$str = preg_replace("~<(/)?$old>~", "<\1$new>", $str);
return $str;
}
回答by jwilcox09
First do a str_replace
首先做一个 str_replace
$string = '<h1>Foo</h1>bar'
strip_tags(str_replace('</h1>', ' ',$string));
