PHP：特殊字符作为数组中的键

Question

my problem is that i use the special character & as an key and this seems not to work

my array is like this

$legalforms = array(
    'GmbH & Co.KG' => array(
            'namesToSubmit' =>array(
                'companyName'=>'required',
                'location'=>'required', 
                'phone'=>null,
                'fax'=>null,
                'web'=>null,
                'registryCourt'=>'required',
                'registryNumber'=>'required',
                'companyNameAssociate'=>'required',
                'locationAssociate'=>'required',
                'registryCourtAssociate'=>'required',
                'registryNumberAssociate'=>'requuired',
                'ceo'=>'required'
            ),
       )
)

and when i want to use the namesToSubmit i get an error that property of nameToSubmit is null, if i remove the special character & out of it , it works.. so how can i get it to work with the & ?

edit:

$("#sendLegalForm").click(function () { 
         selection = $('#selection').val();
         $.ajax({
             type:'GET',
             url:'http://192.168.10.24/php/sig.php?selectedLegalform='+ selection,
             dataType:'json',
             success: function (data){  

                 $("#legalform").hide();
                 $("#fields").show();
                 var fieldnames =[];
                 for(property in data.namesToSubmit){
                    fieldnames.push(property);
                 }
                 var fields=[];
                 for(var i=0; i<data.textfieldHeaders.length; i++){               
                 fields.push(data.textfieldHeaders[i],'<br>','<input name="',fieldnames[i],'" type="text"                                                       ',data.namesToSubmit[fieldnames[i]] == "required"?"required":"",'>','<br/>');        
                 }                

                 fields.push("<br>", 'Pflichtfelder (*)');
                 $("#fieldsForm").prepend(fields.join(''));              
             },
             error: function(jqXHR,textStatus,errorThrown){
                console.log(jqXHR);
                console.log(textStatus);
                console.log(errorThrown);
             }
         });
     });

and i get the error in this line

for(property in data.namesToSubmit){

tried the md5 , didn´t work , but thanks for all your help

Answer 1

Change the request method to POST:

$.ajax({
    type:'POST',
    url: 'http://192.168.10.24/php/sig.php',
    data: {selectedLegalform: selection},
    ...

In PHP:

$data = $_POST['selectedLegalform'];

If you send the string GmbH & Co.KG via GET it becomes GmbH%20%26%20Co%2EKG. That should be the problem.