通加重（JavaScript的）（GET）

Question

我需要通過一個查詢葡萄牙語（BR）加重，這是我的javascript函數：

 if (str.length == 0){ 
     document.getElementById("pacientes_hint").innerHTML=""; 
     return; 
     } 
     if(str.length > 2){ 
       if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari 
       xmlhttp = new XMLHttpRequest(); 
       } 
       else{// code for IE6, IE5 
       xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); 
       } 
       xmlhttp.onreadystatechange=function(){ 
       if (xmlhttp.readyState == 4 && xmlhttp.status == 200){ 
        document.getElementById("pacientes_hint").innerHTML=xmlhttp.responseText; 
        } 
       } 
       xmlhttp.open("GET","pacientes/busca/"+str, true); 
       xmlhttp.send(); 
     } 

我試圖逃跑（STR）與encodeURI沒有成功，感謝

@EDIT：

這是PHP函數

function busca(){ 
    $q = utf8_decode(urldecode($this->uri->segment(3))); 
    echo $q; 
    $q = str_replace("%20", " ", $q); 
    $query = $this->model_pacientes->pegarLike($q); 

    foreach($query as $k){ 
     echo "<div id='resultados_hint'>" . "<a href='#' onclick='clicar(this.firstChild.data);'>" .$k['Prinom']. "</a></div>"; 
    } 

} 

Answer 1

encodeURIComponent：

xmlhttp.open("GET","pacientes/busca/" + encodeURIComponent(str), true);