javascript - 在 javascript 自动完成中获取 php 数组

Question

这个问题已经有答案了:

How do i show a list in a javascript array from a php code using a html input field? (2 个回答)

已关闭 4 年前。

我有一个简单的 Web 表单，它使用使用 javascript 自动完成数组的输入字段。

我遇到的问题是我希望 javascript 自动完成数组获取 php 客户的名字和姓氏，这将在 Web 表单输入文本字段中输入时显示。单击自动完成列表中的名称后，我就可以提交表单。输入文本字段使用客户 ID。

我怎样才能让它发挥作用？

<小时/>

javascript:

<script type="text/javascript">

  function autocomplete(inp, arr) {

   var currentFocus;

   inp.addEventListener("input", function(e) {

   var a, b, i, val = this.value;

   closeAllLists();

   if (!val) { return false;}

   currentFocus = -1;

   a = document.createElement("DIV");

   a.setAttribute("id", this.id + "autocomplete-list");

   a.setAttribute("class", "autocomplete-items");

   this.parentNode.appendChild(a);

   for (i = 0; i < arr.length; i++) {

    if (arr[i].substr(0, val.length).toUpperCase() == val.toUpperCase()) {

      b = document.createElement("DIV");

      b.innerHTML = "<strong>" + arr[i].substr(0, val.length) + "</strong>";
      b.innerHTML += arr[i].substr(val.length);

      b.innerHTML += "<input type='hidden' value='" + arr[i] + "'>";

      b.addEventListener("click", function(e) {

          inp.value = this.getElementsByTagName("input")[0].value;

          closeAllLists();
       });
        a.appendChild(b);
       }
      }
     });

 inp.addEventListener("keydown", function(e) {
  var x = document.getElementById(this.id + "autocomplete-list");
  if (x) x = x.getElementsByTagName("div");
  if (e.keyCode == 40) {

    currentFocus++;

    addActive(x);
  } else if (e.keyCode == 38) { //up

    currentFocus--;

    addActive(x);
  } else if (e.keyCode == 13) {

    e.preventDefault();
    if (currentFocus > -1) {
      /*and simulate a click on the "active" item:*/
      if (x) x[currentFocus].click();
    }
  }
 });
function addActive(x) {

if (!x) return false;

removeActive(x);
if (currentFocus >= x.length) currentFocus = 0;
if (currentFocus < 0) currentFocus = (x.length - 1);

x[currentFocus].classList.add("autocomplete-active");
}
function removeActive(x) {

for (var i = 0; i < x.length; i++) {
  x[i].classList.remove("autocomplete-active");
}
}
function closeAllLists(elmnt) {

var x = document.getElementsByClassName("autocomplete-items");
for (var i = 0; i < x.length; i++) {
  if (elmnt != x[i] && elmnt != inp) {
    x[i].parentNode.removeChild(x[i]);
  }
 }
 }

 document.addEventListener("click", function (e) {
  closeAllLists(e.target);
  });
  }

var customers = ["<?php echo strtoupper($CustomerSet['customer_first'] .'  '. $CustomerSet['customer_last']);?>"];

autocomplete(document.getElementById("myInput"), customers);

</script>

<小时/>

php:

 <?php

                    foreach ( $this->fetchCustomers[2] as $CustomerSet ) :

                        echo '<option value="'. $CustomerSet['id'] .'" ';

                        if ( $_POST['customerID'] == $CustomerSet['id'] ) :

                            echo ' SELECTED ';

                        endif;

                        echo '>'. strtoupper( $CustomerSet['customer_first'] ) .'  '. strtoupper( $CustomerSet['customer_last'] ) .' - '. $CustomerSet['id'] .'</option>';

                    endforeach;

                ?> 

<小时/>

html:

  <input type="text" name="customerID" id="myInput" placeholder="Select Customer" value=""> 

Answer 1

我建议你查一下“ajax”是什么，查一些教程。