blocks|key|1121404|text|使用当前的str_replace方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1121405|$FileName+=+str_replace("'",+"",+$UserInput);|code-block|syntax|javascript|1121406|虽然很难看出，第一个参数是双引号，然后是单引号，然后是双引号。第二个参数是两个双引号，中间没有任何东西。|1121407|使用str_replace，您甚至可以拥有一个想要完全删除的字符串数组：|1121408|$remove[]+=+"'";
$remove[]+=+'"';
$remove[]+=+"-";+//+just+as+another+example

$FileName+=+str_replace(+$remove,+"",+$UserInput+);|1121409|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Using your current str_replace method:

<pre><code>$FileName = str_replace("'", "", $UserInput);
</code></pre>

While it's hard to see, the first argument is a double quote followed by a single quote followed by a double quote. The second argument is two double quotes with nothing in between.

With str_replace, you could even have an array of strings you want to remove entirely:

<pre><code>$remove[] = "'";
$remove[] = '"';
$remove[] = "-"; // just as another example

$FileName = str_replace( $remove, "", $UserInput );
</code></pre>

blocks|key|906515|text|您可以在HTML中整体替换：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|906516|$FileName+=+preg_replace("/'/",+"\&#39;",+$UserInput);|code-block|syntax|javascript|906517|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can substitute in HTML entitiy: 

<pre><code>$FileName = preg_replace("/'/", "\&amp;#39;", $UserInput);
</code></pre>

blocks|key|906570|text|在删除不允许的字符方面，您还可以有更多的限制。以下正则表达式将删除除字母、数字或下划线以外的所有字符：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|906571|$FileName+=+preg_replace('/[%5E\w]/',+'',+$UserInput);|code-block|syntax|javascript|906572|您可能希望这样做，以确保跨不同操作系统的文件名具有最大的兼容性。|906573|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You could also be more restrictive in removing disallowed characters. The following regex would remove all characters that are not letters, digits or underscores:

<pre><code>$FileName = preg_replace('/[^\w]/', '', $UserInput);
</code></pre>

You might want to do this to ensure maximum compatibility for filenames across different operating systems.

blocks|key|906591|text|$replace_str+=+array('"',+"'",+",");
$FileName+=+str_replace($replace_str,+"",+$UserInput);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|906592|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>$replace_str = array('"', "'", ",");
$FileName = str_replace($replace_str, "", $UserInput);
</code></pre>

blocks|key|906623|text|我将此函数htmlspecialchars用于图像中的alt属性|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|906624|entityMap|0|LINK|mutability|MUTABLE|url|http://cl1.php.net/manual/en/function.htmlspecialchars.php^0|5|G|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I used this function <a href="http://cl1.php.net/manual/en/function.htmlspecialchars.php" rel="nofollow">htmlspecialchars</a> for alt attributes in images

blocks|key|906630|text|$test+=+"{'employees':[{'firstName':'John',+'lastName':'Doe'},{'firstName':'John',+'lastName':'Doe'}]}"+;+
$test+=+str_replace("'",+'"',+$test);
echo+++$test;
$jtest+=+json_decode($test,true);
var_dump($jtest);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|906631|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>$test = "{'employees':[{'firstName':'John', 'lastName':'Doe'},{'firstName':'John', 'lastName':'Doe'}]}" ; 
$test = str_replace("'", '"', $test);
echo $test;
$jtest = json_decode($test,true);
var_dump($jtest);
</code></pre>

blocks|key|906657|text|试试这个吧。您可以使用以下命令仅剥离'和"：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|906658|$FileName+=+str_replace(array('\'',+'"'),+'',+$UserInput);+|code-block|syntax|javascript|906659|entityMap^0|I|1|K|1|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

Try this one. You can strip just <code>'</code> and <code>"</code> with:

<pre><code>$FileName = str_replace(array('\'', '"'), '', $UserInput); 
</code></pre>

I have an HTML form that a user can input text into a <code>title</code> field, I then have php creating an HTML file called <code>title.html</code>

My problem is that users can input spaces and apostrophes into the title field that can't be used in the html file name. I replaced the spaces with underscores by using:

<pre><code>$FileName = str_replace(" ", "_", $UserInput);
</code></pre>

However, I can't seem to remove single-quotes? I have tried using:

<pre><code>$FileName = preg_replace("/'/", '', $UserInput); 
</code></pre>

but this took <code>test's</code> and turned it into <code>test\s.html</code>.

Removing single-quote from a string in php

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个HTML表单，用户可以在title字段中输入文本，然后让php创建一个名为title.html的HTML文件我的问题是，用户可以在title字段中输入空格和撇号，而不能在html文件名中使用它们。我用下划线替换了空格，使用：$FileName = str_replace(" ", "_", $UserInput...

问在php中删除字符串中的单引号
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