来自外部源的变量名称中的点和空格将转换为下划线

Question

Trying a bit of AJAX, and I find that much of my data is littered with underscores! Documentation confirms that this is working as intended. Any way to pass my form information to PHP intact? I'm using CodeIgniter, so my pass looks like /controller/function/variable, receiving controller:

controller{
 function($v=0){#what once was hello world is now hello_world...}
}

I can't very well do an undo, data might contain an underscore.

Thanks, Brandon

Edit:

I think it is converting the value. Here is the gist of the code:

<form>
<text input name="tbox"/>
<submit/>
</form>

 ajax_handler(
    v = form.name() + form.val()
    do_ajax('/controller/function/v')
 )

controller(){
   function($v=0){#spaces and periods in v are converted to underscore}
} 

thanks again, brandon

here is the actual code:

<input type="text" id="tusername" name="tusername" class="checkable tbox"/>
<button id="unsubmit" name="wizard" class="formable">next</button>


        $('.formable').live('click',function(event){
            event.preventDefault();
            var n = $(this).attr('id');
            var a = $(this).attr('name');
            var v = dosend(); 
            $.ajax({
                    url: '/form/'+n+'/'+v,
                    type: 'post',
                    success: function(result){
                         alert(result);
                    }  
            });
            function dosend(){
                    var inputs = $(":input");
                    var s = "";
                    inputs.each(function(){
                            s += $(this).attr('name')+":";
                            s += $(this).val()+";";
                    });
                    return s;
            }
    });

   class Form extends Controller{
       function Form(){
           parent::Controller();
           session_start();
       }
       function unsubmit($v=6){
           print $v;
       }
   }

anything in the string that gets passed to the controller's function that is a space or period gets converted to underscore. I type hello world into this box, and it prints out hello_world.

            $w = explode(';',$v);
            foreach($w as $i){
                    $x = explode(':',$i);
                    if(isset($x[1])){
                      $_AJAX[$x[0]] = $x[1];
                    }
            }

Answer 1

If you need them preserved, considering sending as something else then application/x-www-form-urlencoded or multipart/form-data. For instance, this nice questioneer tried to use JSON, which you can parse at your leisure: handle json request in PHP

JSON would be easier to parse. You can however use the application/x-www-form-urlencoded form (which wouldn't handle file-uploads), file_get_contents('php://input'), and parse the string to your liking yourself.

With a dirty, dirty hack, I was delighted to be told just last week this can also work for multipart/form-data: Get raw post data

---

Missed the "'m just using post, separating keys and values with ':' and pairs with ';' " apparantly:

        $.ajax({
                url: '/form/'+n+'/'+v,
                type: 'post',
                contentType: 'text/plain', //<-- add this

Possibly parse by this:

    <?php
    $post = file_get_contents('php://input');
    $pairs = explode(':',$post);
    $values = array();
    foreach($pairs as $pair){
         $vars = explode(':',$pair,2);
         $values[$vars[0]] = $vars[1];
    }
    ?>