AJAX POST and Plus Sign -- How to Encode

Question

I m POSTing the contents of a form field via AJAX to a PHP script and using JavaScript to escape field contents    The problem is that any plus signs are being stripped out and replaced by spaces   How can I safely  encode  the plus sign and then appropriately  decode  it on the PHP side

User · Accepted Answer

Use encodeURIComponent   in JS and in PHP you should receive the correct values    Note  When you access   GET    POST or   REQUEST in PHP  you are retrieving values that have already been decoded    Example    In your JS      url encode your string var string   encodeURIComponent            2B     send it to your server window location    http   example com  string   string     http   example com  string  2B   On your server   echo   GET  string             It is only the raw HTTP request that contains the url encoded data    For a GET request you can retrieve this from the URI    SERVER  REQUEST URI   or   SERVER  QUERY STRING    For a urlencoded POST  file get contents  php   stdin    NB    decode   only works for single byte encoded characters  It will not work for the full UTF-8 range    eg   text     u0100      A    incorrect escape text       u0100     correct encodeURIComponent text        C4 80    Note    C4 80  is equivalent to  escape   xc4 x80    Which is the byte sequence   xc4 x80  that represents A in UTF-8  So if you use encodeURIComponent   your server side must know that it is receiving UTF-8  Otherwise PHP will mangle the encoding

User · Answer

To make it more interesting and to hopefully enable less hair pulling for someone else   Using python  built dictionary for a device which we can use curl to configure   Problem    timezone    5      throws an error   5   Solution    timezone    2B   5      Works  So  in a nutshell   var     timezone    2B   5   json   JSONEncoder   encode var  subprocess call   curl  ipaddress  -XPUT   -d   data   json     Thanks to this post

User · Answer

If you have to do a curl in php  you should use urlencode   from PHP but individually   strPOST    Item1      Value1     amp Item2     urlencode        If you do urlencode strPOST   you will bring you another problem  you will have one Item1 and  amp  will be change  xx value and be as one value  see down here the return   Example 1   strPOST    Item1      Value1     amp Item2     urlencode      will give Item1 Value1 amp Item2  2B   Example 2   strPOST   urlencode  Item1      Value1     amp Item2     will give Item1 3DValue1 26Item2 3D 2B   Example 1 is the good way to prepare string for POST in curl  Example 2 show that the receptor will not see the equal and the ampersand to distinguish both value

User · Answer

In JavaScript try   encodeURIComponent      and in PHP   urldecode   POST  field

User · Answer

my problem was with the accents             and the plus sign     when i to try to save javascript  code examples  to mysql   my solution  not the better way  but it works    javascript   function replaceAll  text  busca  reemplaza      while  text toString   indexOf busca     -1    text   text toString   replace busca reemplaza  return text      function cleanCode cod   code   replaceAll cod          1         error   palos de explode en java code   replaceAll code         0         error con los signos mas    return code      function to save   function save pid code   code   cleanCode code      fix sign   and   code   escape code      fix accents var url    editor php   var variables    op save   var myData   variables    amp code    code    amp pid    pid    amp newdate     new Date    getTime        var result   null    ajax   datatype    html   data  myData    url  url  success   function result        alert result      result ok                                   end function   function in php    lt  php function save  pid  code        code  preg replace     1          code        code  preg replace     0          code       mysql query  update table set code       mysql real escape string  code       where pid   pid         gt

User · Answer

The hexadecimal value you are looking for is  2B  To get it automatically in PHP run your string through urlencode  stringVal   And then run it rhough urldecode  stringVal  to get it back   If you want the JavaScript to handle it  use escape  str    Edit  After  bobince s comment I did more reading and he is correct   Use encodeURIComponent str  and decodeURIComponent str   Escape will not convert the characters  only escape them with   s

[javascript] AJAX POST and Plus Sign ( + ) -- How to Encode?

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