How can I send the ampersand character via AJAX

Question

I want to send a few variables and a string with the POST method from JavaScript    I get the string from the database  and then send it to a PHP page  I am using an XMLHttpRequest object   The problem is that the string contains the character  amp  a few times  and the   POST array in PHP sees it like multiple keys   I tried replacing the  amp  with   amp  with the replace   function  but it doesn t seem to do anything   Can anyone help   The javascript code and the string looks like this   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     The String is     lt span class  style2  gt  amp quot Busola amp quot  lt  span gt

User · Answer

encodeURIComponent Your text here     This will truncate special characters

User · Answer

You can use encodeURIComponent     It will escape all the characters that cannot occur verbatim in URLs   var wysiwyg clean   encodeURIComponent wysiwyg     In this example  the ampersand character  amp  will be replaced by the escape sequence  26  which is valid in URLs

User · Answer

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     ajax     type   POST     url    link json     data    value  poststr      error  function    alert  some error occured            If you can t use jQuery  which is pretty much the standard these days   use encodeURIComponent

User · Answer

You need to url-escape the ampersand   Use   var wysiwyg clean   wysiwyg replace   amp      26      As Wolfram points out  this is nicely handled  along with all the other special characters  by encodeURIComponent

User · Answer

You might want to use encodeURIComponent     encodeURIComponent   amp quot Busola amp quot          gt   26quot 3BBusola 26quot 3B

User · Answer

Ramil Amr s answer works only for the  amp  character  If you have some other special characters  you should use PHP s htmlspecialchars   and JS s encodeURIComponent     You can write   var wysiwyg clean   encodeURIComponent wysiwyg     And on the server side   htmlspecialchars   POST  wysiwyg       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

User · Answer

You could encode your string using Base64 encoding on the JavaScript side and then decoding it on the server side with PHP       JavaScript  Docu   var wysiwyg clean   window btoa  wysiwyg      PHP  Docu     var wysiwyg   base64 decode    POST  wysiwyg

User · Answer

You can pass your arguments using this encodeURIComponent function so you don t have to worry about passing any special characters   data   param1 getAccNos amp param2   encodeURIComponent  Dolce  amp  Gabbana      OR  var someValue    Dolce  amp  Gabbana   data   param1 getAccNos amp param2   encodeURIComponent someValue    https   developer mozilla org en-US docs Web JavaScript Reference Global Objects encodeURIComponent

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

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