<?php
//設(shè)置頁(yè)面內(nèi)容是html編碼格式是utf-8
//header("Content-Type: text/plain;charset=utf-8"); 
header('Access-Control-Allow-Origin:*');
header('Access-Control-Allow-Methods:POST,GET');
header('Access-Control-Allow-Credentials:true'); 
header("Content-Type: application/json;charset=utf-8"); 
//header("Content-Type: text/xml;charset=utf-8"); 
//header("Content-Type: text/html;charset=utf-8"); 
//header("Content-Type: application/javascript;charset=utf-8");


//定義一個(gè)多維數(shù)組，包含員工的信息，每條員工信息為一個(gè)數(shù)組
$staff = array
(
array("name" => "喬布斯", "number" => "101", "sex" => "男", "job" => "IOS開(kāi)發(fā)工程師"),
array("name" => "比爾蓋茨", "number" => "102", "sex" => "男", "job" => "微軟開(kāi)發(fā)工程師"),
array("name" => "陳美麗", "number" => "103", "sex" => "女", "job" => "安卓開(kāi)發(fā)工程師"),
array("name" => "黃力", "number" => "104", "sex" => "男", "job" => "Java開(kāi)發(fā)工程師"),
array("name" => "車(chē)神", "number" => "105", "sex" => "男", "job" => "游戲開(kāi)發(fā)工程師"),
array("name" => "測(cè)試貓", "number" => "106", "sex" => "男", "job" => "web前端開(kāi)發(fā)工程師")
);


//判斷如果是get請(qǐng)求，則進(jìn)行搜索；如果是POST請(qǐng)求，則進(jìn)行新建
//$_SERVER是一個(gè)超全局變量，在一個(gè)腳本的全部作用域中都可用，不用使用global關(guān)鍵字
//$_SERVER["REQUEST_METHOD"]返回訪問(wèn)頁(yè)面使用的請(qǐng)求方法
if ($_SERVER["REQUEST_METHOD"] == "GET") {
search();
} elseif ($_SERVER["REQUEST_METHOD"] == "POST"){
create();
}


//通過(guò)員工編號(hào)搜索員工
function search(){
//檢查是否有員工編號(hào)的參數(shù)
//isset檢測(cè)變量是否設(shè)置；empty判斷值為否為空
//超全局變量 $_GET 和 $_POST 用于收集表單數(shù)據(jù)
if (!isset($_GET["number"]) || empty($_GET["number"])) {
echo '{"success":false,"msg":"參數(shù)錯(cuò)誤"}';
return;
}
//函數(shù)之外聲明的變量擁有 Global 作用域，只能在函數(shù)以外進(jìn)行訪問(wèn)。
//global 關(guān)鍵詞用于訪問(wèn)函數(shù)內(nèi)的全局變量
global $staff;
//獲取number參數(shù)
$number = $_GET["number"];
$result = '{"success":false,"msg":"沒(méi)有找到員工。"}';

//遍歷$staff多維數(shù)組，查找key值為number的員工是否存在，如果存在，則修改返回結(jié)果
foreach ($staff as $value) {
if ($value["number"] == $number) {
$result = '{"success":true,"msg":"找到員工：?jiǎn)T工編號(hào)：' . $value["number"] . 
'，員工姓名：' . $value["name"] . 
'，員工性別：' . $value["sex"] . 
'，員工職位：' . $value["job"] . '"}';
break;
}
}
 echo $result;
}


//創(chuàng)建員工
function create(){
//判斷信息是否填寫(xiě)完全
if (!isset($_POST["name"]) || empty($_POST["name"])
|| !isset($_POST["number"]) || empty($_POST["number"])
|| !isset($_POST["sex"]) || empty($_POST["sex"])
|| !isset($_POST["job"]) || empty($_POST["job"])) {
echo '{"success":false,"msg":"參數(shù)錯(cuò)誤，員工信息填寫(xiě)不全"}';
return;
}
//TODO: 獲取POST表單數(shù)據(jù)并保存到數(shù)據(jù)庫(kù)

//提示保存成功
echo '{"success":true,"msg":"員工：' . $_POST["name"] . ' 信息保存成功！"}';
}

?>

<style>
body,input,button,select,h1{
font-size:20px;
line-height:18px;
}
</style>


<script>

window.onload=function(){
document.getElementById("search").onclick=function(){//查詢(xún)數(shù)據(jù)
//發(fā)送Ajax查詢(xún)請(qǐng)求并處理
var request=new XMLHttpRequest();
//open("方法(GET查詢(xún),POST添加)","打開(kāi)的文件數(shù)據(jù)",處理方式(同步為false異步為true,不填默認(rèn)為true));
request.open("GET","server.php?number="+document.getElementById('keyword').value);
request.send();
request.onreadystatechange=function(){
if(request.readyState===4){//當(dāng)服務(wù)器請(qǐng)求完成
if(request.status===200){//status==200為服務(wù)器請(qǐng)求成功
 var data=JSON.parse(request.responseText);
 if(data.success){//數(shù)據(jù)填寫(xiě)符合要求
document.getElementById('searchResult').innerHTML=data.msg;
 }else{//數(shù)據(jù)填寫(xiě)不符號(hào)要求
document.getElementById('searchResult').innerHTML="出現(xiàn)錯(cuò)誤:"+data.msg;
 } 
}else{//服務(wù)器請(qǐng)求失敗
 alert("發(fā)生錯(cuò)誤:"+request.status);
}
}
}
}

document.getElementById("save").onclick=function(){//添加數(shù)據(jù)
//發(fā)送Ajax添加數(shù)據(jù)請(qǐng)求并處理
var request=new XMLHttpRequest();
//open("方法(GET查詢(xún),POST添加)","打開(kāi)的文件數(shù)據(jù)",處理方式(同步為false異步為true,不填默認(rèn)為true))；;
request.open("POST","server.php");
//定義data取得用戶(hù)所填寫(xiě)的數(shù)據(jù)，并且send(data)到服務(wù)器
var data="name="+document.getElementById("staffName").value
 +"&number="+document.getElementById("staffNumber").value
 +"&sex="+document.getElementById("staffSex").value
 +"&job="+document.getElementById("staffJob").value;
request.setRequestHeader("Content-Type","application/x-www-form-urlencoded");//在POST方法里必寫(xiě)，否則添加數(shù)據(jù)不起作用
request.send(data);
request.onreadystatechange=function(){
if(request.readyState===4){//當(dāng)服務(wù)器請(qǐng)求完成
if(request.status===200){//status==200為服務(wù)器請(qǐng)求成功
 var data=JSON.parse(request.responseText);
 if(data.success){//數(shù)據(jù)填寫(xiě)符合要求
document.getElementById('createResult').innerHTML=data.msg;
 }else{//數(shù)據(jù)填寫(xiě)不符合要求
document.getElementById('createResult').innerHTML="出現(xiàn)錯(cuò)誤:"+data.msg;
 } 
}else{//服務(wù)器請(qǐng)求失敗
 alert("發(fā)生錯(cuò)誤:"+request.status);
}
}
}
}
}
</script>

<body>
<h1>員工查詢(xún)</h1>
<label>請(qǐng)輸入員工編號(hào):</label>
<input type="text" id="keyword"/>
<button id="search">查詢(xún)</button>
<p id="searchResult"></p>

<h1>員工創(chuàng)建</h1>
<label>請(qǐng)輸入員工姓名:</label>
<input type="text" id="staffName"/><br>
<label>請(qǐng)輸入員工編號(hào):</label>
<input type="text" id="staffNumber"/><br>
<label>請(qǐng)輸入員工性別:</label>
<select id="staffSex">
 <option>男</option>
 <option>女</option>
</select><br>
<label>請(qǐng)輸入員工職位:</label>
<input type="text" id="staffJob"/><br>
<button id="save">保存</button>
<p id="createResult"></p>
</body>