blocks|key|222621|text|您可以使用encodeURIComponent()。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|222622|它将转义URL中不能逐字出现的所有字符：|222623|var+wysiwyg_clean+=+encodeURIComponent(wysiwyg);|code-block|syntax|javascript|222624|在本例中，与号字符&将被转义序列%2526替换，该序列在URL中有效。|style|CODE|222625|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/encodeURIComponent^0|5|K|0|0|0|0|9|1|G|3|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|12|8|@$A|13|B|14|M|N]|$A|15|B|16|M|N]]|9|@]|C|$]]|$1|O|3|-4|5|6|7|17|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

You can use <a href="https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/encodeURIComponent" rel="noreferrer">encodeURIComponent()</a>.

It will escape all the characters that cannot occur verbatim in URLs:

<pre><code>var wysiwyg_clean = encodeURIComponent(wysiwyg);
</code></pre>

In this example, the ampersand character <code>&amp;</code> will be replaced by the escape sequence <code>%26</code>, which is valid in URLs.

blocks|key|219525|text|您可能想要使用encodeURIComponent()。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|219526|encodeURIComponent("&quot;Busola&quot;");+//+=>+%2526quot%253BBusola%2526quot%253B|code-block|syntax|javascript|219527|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent^0|7|K|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

You might want to use <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent">encodeURIComponent()</a>.

<pre><code>encodeURIComponent("&amp;quot;Busola&amp;quot;"); // =&gt; %26quot%3BBusola%26quot%3B
</code></pre>

blocks|key|3087434|text|您需要对与符号进行url转义。使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3087435|var+wysiwyg_clean+=+wysiwyg.replace('&',+'%2526');|code-block|syntax|javascript|3087436|正如Wolfram指出的那样，encodeURIComponent很好地处理了这一点(以及所有其他特殊字符)。|3087437|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 need to url-escape the ampersand. Use:

<pre><code>var wysiwyg_clean = wysiwyg.replace('&amp;', '%26');
</code></pre>

As Wolfram points out, this is nicely handled (along with all the other special characters) by encodeURIComponent.

blocks|key|2873702|text|Ramil+Amr的答案只适用于&字符。如果你有一些其他的特殊字符，你应该使用PHP的htmlspecialchars()+和JS的encodeURIComponent()。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|BOLD|entityRanges|data|2873703|你可以这样写：|2873704|var+wysiwyg_clean+=+encodeURIComponent(wysiwyg);|code-block|syntax|javascript|2873705|在服务器端：|2873706|htmlspecialchars($_POST['wysiwyg']);|2873707|这将确保AJAX将按预期传递数据，并且PHP+(以防您将数据插入数据库)将确保数据按预期工作。|2873708|entityMap^0|17|I|1U|K|1Q|1|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]|$9|Y|A|Z|B|C]|$9|10|A|11|B|D]]|E|@]|F|$]]|$1|G|3|H|5|6|7|12|8|@]|E|@]|F|$]]|$1|I|3|J|5|K|7|13|8|@]|E|@]|F|$L|M]]|$1|N|3|O|5|6|7|14|8|@]|E|@]|F|$]]|$1|P|3|Q|5|K|7|15|8|@]|E|@]|F|$L|M]]|$1|R|3|S|5|6|7|16|8|@]|E|@]|F|$]]|$1|T|3|-4|5|6|7|17|8|@]|E|@]|F|$]]]|U|$]]

Ramil Amr's answer works only for the &amp; character. If you have some other special characters, you should use PHP's <code>htmlspecialchars()</code> and JS's <code>encodeURIComponent()</code>.

You can write:

<pre><code>var wysiwyg_clean = encodeURIComponent(wysiwyg);
</code></pre>

And on the server side:

<pre><code>htmlspecialchars($_POST['wysiwyg']);
</code></pre>

This will make sure that AJAX will pass the data as expected, and that PHP (in case your'e insreting the data to a database) will make sure the data works as expected.

blocks|key|3087574|text|您可以使用此encodeURIComponent函数传递参数，因此不必担心传递任何特殊字符。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3087575|data:+"param1=getAccNos&param2="%2BencodeURIComponent('Dolce+&+Gabbana')+|code-block|syntax|javascript|3087576|或|3087577|var+someValue+=+'Dolce+&+Gabbana';
data:+"param1=getAccNos&param2="%2BencodeURIComponent(someValue)|3087578|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent|offset|length|3087579|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|0|0|2R|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|W|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|X|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|Y|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|Z|8|@]|9|@$M|10|N|11|1|12]]|A|$]]|$1|O|3|-4|5|6|7|13|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|L]]]]

You can pass your arguments using this encodeURIComponent function so you don't have to worry about passing any special characters.

<pre><code>data: "param1=getAccNos&amp;param2="+encodeURIComponent('Dolce &amp; Gabbana') 
</code></pre>

OR

<pre><code>var someValue = 'Dolce &amp; Gabbana';
data: "param1=getAccNos&amp;param2="+encodeURIComponent(someValue)
</code></pre>

<a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent" rel="nofollow noreferrer">https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent</a>

blocks|key|3087490|text|可以在PHP端使用Base64编码对字符串进行编码，然后在服务器端使用JavaScript+(?)对其进行解码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3087491|JavaScript+(Docu)|offset|length|3087492|var+wysiwyg_clean+=+window.btoa(+wysiwyg+);|code-block|syntax|javascript|3087493|PHP+(Docu)：|3087494|var+wysiwyg+=+base64_decode(+$_POST['wysiwyg']+);|3087495|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en/DOM/window.btoa|1|http://php.net/manual/de/function.base64-decode.php^0|0|C|4|0|0|0|5|4|1|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@$D|10|E|11|1|12]]|A|$]]|$1|F|3|G|5|H|7|13|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|14|8|@]|9|@$D|15|E|16|1|17]]|A|$]]|$1|M|3|N|5|H|7|18|8|@]|9|@]|A|$I|J]]|$1|O|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]|W|$5|R|S|T|A|$U|X]]]]

You could encode your string using Base64 encoding on the JavaScript side and then decoding it on the server side with PHP (?).

JavaScript (<a href="https://developer.mozilla.org/en/DOM/window.btoa" rel="nofollow">Docu</a>)

<pre><code>var wysiwyg_clean = window.btoa( wysiwyg );
</code></pre>

PHP (<a href="http://php.net/manual/de/function.base64-decode.php" rel="nofollow">Docu</a>): 

<pre><code>var wysiwyg = base64_decode( $_POST['wysiwyg'] );
</code></pre>

blocks|key|219553|text|首选方法是使用jQuery等JavaScript库，并将数据选项设置为对象，然后让jQuery进行编码，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|219554|$.ajax({
++type:+"POST",
++url:+"/link.json",
++data:+{+value:+poststr+},
++error:+function(){+alert('some+error+occured');+}
});|code-block|syntax|javascript|219555|如果您不能使用jQuery+(这几乎是当今的标准)，那么可以使用encodeURIComponent。|offset|length|219556|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/En/Core_javascript_1.5_reference%253aglobal_functions%253aencodeuricomponent^0|0|0|W|I|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

The preferred way is to use a JavaScript library such as jQuery and set your data option as an object, then let jQuery do the encoding, like this:

<pre><code>$.ajax({
 type: "POST",
 url: "/link.json",
 data: { value: poststr },
 error: function(){ alert('some error occured'); }
});
</code></pre>

If you can't use jQuery (which is pretty much the standard these days), use <a href="https://developer.mozilla.org/En/Core_javascript_1.5_reference%3aglobal_functions%3aencodeuricomponent" rel="nofollow">encodeURIComponent</a>.

blocks|key|222674|text|encodeURIComponent(Your+text+here);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|222675|这将截断特殊字符。|unstyled|222676|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>encodeURIComponent(Your text here);
</code></pre>

This will truncate special characters.

I want to send a few variables and a string with the <code>POST</code> method from JavaScript. 

I get the string from the database, and then send it to a PHP page. I am using an <code>XMLHttpRequest</code> object.

The problem is that the string contains the character <code>&amp;</code> a few times, and the <code>$_POST</code> array in PHP sees it like multiple keys.

I tried replacing the <code>&amp;</code> with <code>\&amp;</code> with the <code>replace()</code> function, but it doesn't seem to do anything.

Can anyone help?

The javascript code and the string looks like this:

<pre><code>var wysiwyg = dijit.byId("wysiwyg").get("value");
var wysiwyg_clean = wysiwyg.replace('&amp;','\&amp;');

var poststr = "act=save";

poststr+="&amp;titlu="+frm.value.titlu;
poststr+="&amp;sectiune="+frm.value.sectiune;
poststr+="&amp;wysiwyg="+wysiwyg_clean;
poststr+="&amp;id_text="+frm.value.id_text;

xmlhttp.open("POST","lista_ajax.php",true);
xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
xmlhttp.send(poststr);
</code></pre>

The String is:

<pre><code> &lt;span class="style2"&gt;&amp;quot;Busola&amp;quot;&lt;/span&gt;
</code></pre>

How can I send the "&" (ampersand) character via AJAX?

数据库

服务器

jQuery

我想用JavaScript的POST方法发送几个变量和一个字符串。我从数据库中获取字符串，然后将其发送到PHP页面。我正在使用一个XMLHttpRequest对象。问题是，字符串包含字符&几次，并且PHP中的$_POST数组将其视为多个键。我尝试用replace()函数将&替换为\&，但它似乎没有任何作用。有人能帮上忙吗？对javascript代码执行操作，字符串如下所示：var wysiwyg 

问如何通过AJAX发送"&“(与号)字符？
EN

回答 8

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何通过AJAX发送"&“(与号)字符？EN

回答 8

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何通过AJAX发送"&“(与号)字符？
EN