php传参方式1--ajax，php1--ajax_PHP教程-tutorial php-php.cn

Jadual Kandungan

php传参方式1--ajax，php1--ajax

Rumah

pembangunan bahagian belakang

tutorial php

php传参方式1--ajax，php1--ajax_PHP教程

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jul 12, 2016 am 09:08 AM

ajax

php传参方式1--ajax，php1--ajax

AJAX即“Asynchronous Javascript And XML”（异步JavaScript和XML），是指一种创建交互式网页应用的网页开发技术。 AJAX = 异步 JavaScript和XML（标准通用标记语言的子集）。 AJAX 是一种用于创建快速动态网页的技术。通过在后台与服务器进行少量数据交换，AJAX 可以使网页实现异步更新。这意味着可以在不重新加载整个网页的情况下，对网页的某部分进行更新。传统的网页（不使用 AJAX）如果需要更新内容，必须重载整个网页页面。异步请求（XMLHttpRequest对象），局部刷新（本质是js dom） ajax的用途还有填写表单时候自动判断用户名是否重复，比如你写博客写到一半突然电脑重启了，可以恢复你写了一半的内容。 get用于获取数据，有字数限制，请求提包括在url中，post无限制，用于修改服务器的内容。 get是安全的请求，需要保证不修改信息。

1、ajax一般用于当前页面，不实现页面跳转

2、ajax端：怎样异步得监听服务器端的状态呢？通过onreadystatechange监听readystate属性

request.onreadystatechange = function() {

<span>if (request.readyState===4) {</span>

Salin selepas log masuk

0：请求未初始化（还没有调用 open()）。
1：请求已经建立，但是还没有发送（还没有调用 send()）。
2：请求已发送，正在处理中（通常现在可以从响应中获取内容头）。
3：请求在处理中；通常响应中已有部分数据可用了，但是服务器还没有完成响应的生成。
4：响应已完成；您可以获取并使用服务器的响应了。

所以一般都是判断等于4之后进行相应的操作。

但注意这个和request的status是不一样的

比如readystate=4但是status=404表示响应完成但是响应的内容是没有找到文件

所以一般做法是==200的时候返回内容，其他就显示发声错误即可。

注意在post请求中要设置url 成encode，及url解码，否则不能正确给出结果

request.setRequestHeader("Content-type","application/x-www-form-urlencoded");

但是url解码会有一个问题，由于进行urlencoded的时候加号会自动解码成空格，&会被解码成变量连接符，所以如果出现这些字符必须要进行转码

（在做canvas上传图片的url的时候遇到了这个问题）

Pic = Pic.replace(/\+/g, "%2B");
Pic = Pic.replace(/\&/g, "%26");

3、服务器通过echo来返回给传递ajax的界面。（提示：zendstudio内置的浏览器对于ajax的页面总是会显示上一次的页面，所以改成在外置浏览器里运行　　preference-general-web browser里面设置。）如果只返回一行简单的，可以不用jason，jason可以更方便返回不同键值的数据。

<span> 1</span> <span><!</span><span>DOCTYPE HTML</span><span>></span>
<span> 2</span> <span><</span><span>html</span><span>></span>
<span> 3</span> <span><</span><span>head</span><span>></span>
<span> 4</span> <span><</span><span>meta </span><span>http-equiv</span><span>="Content-Type"</span><span> content</span><span>="text/html; charset=utf-8"</span><span>></span>
<span> 5</span> <span><</span><span>title</span><span>></span>Demo<span></</span><span>title</span><span>></span>
<span> 6</span> <span><</span><span>style</span><span>></span>
<span> 7</span> <span>body, input, select, button, h1 </span><span>{</span>
<span> 8</span> <span>    font-size</span><span>:</span><span> 28px</span><span>;</span>
<span> 9</span> <span>    line-height</span><span>:</span><span>1.7</span><span>;</span>
<span>10</span> <span>}</span>
<span>11</span> <span></</span><span>style</span><span>></span>    
<span>12</span> <span></</span><span>head</span><span>></span>
<span>13</span> 
<span>14</span> <span><</span><span>body</span><span>></span>
<span>15</span> 
<span>16</span> <span><</span><span>h1</span><span>></span>员工查询<span></</span><span>h1</span><span>></span>
<span>17</span> 
<span>18</span> <span><</span><span>label</span><span>></span>请输入员工编号：<span></</span><span>label</span><span>></span>
<span>19</span> <span><</span><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="keyword"</span> <span>/></span>
<span>20</span> <span><</span><span>button </span><span>id</span><span>="search"</span><span>></span>查询<span></</span><span>button</span><span>></span>
<span>21</span> <span><</span><span>p </span><span>id</span><span>="searchResult"</span><span>></</span><span>p</span><span>></span>
<span>22</span> 
<span>23</span> <span><</span><span>h1</span><span>></span>员工新建<span></</span><span>h1</span><span>></span>
<span>24</span> <span><</span><span>label</span><span>></span>请输入员工姓名：<span></</span><span>label</span><span>></span>
<span>25</span> <span><</span><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="staffName"</span> <span>/><</span><span>br</span><span>></span>
<span>26</span> <span><</span><span>label</span><span>></span>请输入员工编号：<span></</span><span>label</span><span>></span>
<span>27</span> <span><</span><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="staffNumber"</span> <span>/><</span><span>br</span><span>></span>
<span>28</span> <span><</span><span>label</span><span>></span>请选择员工性别：<span></</span><span>label</span><span>></span>
<span>29</span> <span><</span><span>select </span><span>id</span><span>="staffSex"</span><span>></span>
<span>30</span> <span><</span><span>option</span><span>></span>女<span></</span><span>option</span><span>></span>
<span>31</span> <span><</span><span>option</span><span>></span>男<span></</span><span>option</span><span>></span>
<span>32</span> <span></</span><span>select</span><span>><</span><span>br</span><span>></span>
<span>33</span> <span><</span><span>label</span><span>></span>请输入员工职位：<span></</span><span>label</span><span>></span>
<span>34</span> <span><</span><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="staffJob"</span> <span>/><</span><span>br</span><span>></span>
<span>35</span> <span><</span><span>button </span><span>id</span><span>="save"</span><span>></span>保存<span></</span><span>button</span><span>></span>
<span>36</span> <span><</span><span>p </span><span>id</span><span>="createResult"</span><span>></</span><span>p</span><span>></span>
<span>37</span> 
<span>38</span> <span><</span><span>script</span><span>></span>
<span>39</span> <span>document.getElementById(</span><span>"</span><span>search</span><span>"</span><span>).onclick </span><span>=</span> <span>function</span><span>() { 
</span><span>40</span>     <span>var</span><span> request </span><span>=</span> <span>new</span><span> XMLHttpRequest();
</span><span>41</span> <span>    request.open(</span><span>"</span><span>GET</span><span>"</span><span>, </span><span>"</span><span>serverjson.php?number=</span><span>"</span> <span>+</span><span> document.getElementById(</span><span>"</span><span>keyword</span><span>"</span><span>).value);
</span><span>42</span> <span>    request.send();
</span><span>43</span> <span>    request.onreadystatechange </span><span>=</span> <span>function</span><span>() {
</span><span>44</span>         <span>if</span><span> (request.readyState</span><span>===</span><span>4</span><span>) {
</span><span>45</span>             <span>if</span><span> (request.status</span><span>===</span><span>200</span><span>) { </span><span>//</span><span>不同的status在百度可以找到</span>
<span>46</span>                 <span>var</span><span> data </span><span>=</span><span> JSON.parse(request.responseText);</span><span>//</span><span>json.parse!</span>
<span>47</span>                 <span>if</span><span> (data.success) { </span><span>//</span><span>注意seccess也返回jason的一个键值</span>
<span>48</span> <span>                    document.getElementById(</span><span>"</span><span>searchResult</span><span>"</span><span>).innerHTML </span><span>=</span><span> data.msg;</span><span>//</span><span>json中的msg键值</span>
<span>49</span> <span>                } </span><span>else</span><span> {
</span><span>50</span> <span>                    document.getElementById(</span><span>"</span><span>searchResult</span><span>"</span><span>).innerHTML </span><span>=</span> <span>"</span><span>出现错误：</span><span>"</span> <span>+</span><span> data.msg;
</span><span>51</span> <span>                }
</span><span>52</span> <span>            } </span><span>else</span><span> {<br /></span><span>53</span> <span>                alert(</span><span>"</span><span>发生错误：</span><span>"</span> <span>+</span><span> request.status);
</span><span>54</span> <span>            }
</span><span>55</span> <span>        } 
</span><span>56</span> <span>    }
</span><span>57</span> <span>}
</span><span>58</span> 
<span>59</span> <span>document.getElementById(</span><span>"</span><span>save</span><span>"</span><span>).onclick </span><span>=</span> <span>function</span><span>() { 
</span><span>60</span>     <span>var</span><span> request </span><span>=</span> <span>new</span><span> XMLHttpRequest();
</span><span>61</span> <span>    request.open(</span><span>"</span><span>POST</span><span>"</span><span>, </span><span>"</span><span>serverjson.php</span><span>"</span><span>);
</span><span>62</span>     <span>var</span><span> data </span><span>=</span> <span>"</span><span>name=</span><span>"</span> <span>+</span><span> document.getElementById(</span><span>"</span><span>staffName</span><span>"</span><span>).value 
</span><span>63</span>                       <span>+</span> <span>"</span><span>&number=</span><span>"</span> <span>+</span><span> document.getElementById(</span><span>"</span><span>staffNumber</span><span>"</span><span>).value 
</span><span>64</span>                       <span>+</span> <span>"</span><span>&sex=</span><span>"</span> <span>+</span><span> document.getElementById(</span><span>"</span><span>staffSex</span><span>"</span><span>).value 
</span><span>65</span>                       <span>+</span> <span>"</span><span>&job=</span><span>"</span> <span>+</span><span> document.getElementById(</span><span>"</span><span>staffJob</span><span>"</span><span>).value;
</span><span>66</span> <strong><span>    request.setRequestHeader(</span><span>"</span><span>Content-type</span><span>"</span><span>,</span><span>"</span><span>application/x-www-form-urlencoded</span><span>"</span><span>);
</span></strong><span>67</span> <span>    request.send(data);
</span><span>68</span> <span>    request.onreadystatechange </span><span>=</span> <span>function</span><span>() {
</span><span>69</span>         <span>if</span><span> (request.readyState</span><span>===</span><span>4</span><span>) {
</span><span>70</span>             <span>if</span><span> (request.status</span><span>===</span><span>200</span><span>) { 
</span><span>71</span>                 <span>var</span><span> data </span><span>=</span><span> JSON.parse(request.responseText);
</span><span>72</span>                 <span>if</span><span> (data.success) { 
</span><span>73</span> <span>                    document.getElementById(</span><span>"</span><span>createResult</span><span>"</span><span>).innerHTML </span><span>=</span><span> data.msg;
</span><span>74</span> <span>                } </span><span>else</span><span> {
</span><span>75</span> <span>                    document.getElementById(</span><span>"</span><span>createResult</span><span>"</span><span>).innerHTML </span><span>=</span> <span>"</span><span>出现错误：</span><span>"</span> <span>+</span><span> data.msg;
</span><span>76</span> <span>                }
</span><span>77</span> <span>            } </span><span>else</span><span> {
</span><span>78</span> <span>                alert(</span><span>"</span><span>发生错误：</span><span>"</span> <span>+</span><span> request.status);
</span><span>79</span> <span>            }
</span><span>80</span> <span>        } 
</span><span>81</span> <span>    }
</span><span>82</span> <span>}
</span><span>83</span> <span></</span><span>script</span><span>></span>
<span>84</span> <span></</span><span>body</span><span>></span>
<span>85</span> <span></</span><span>html</span><span>></span>

Salin selepas log masuk

3、响应server代码serverjason.php

<?<span>php
</span><span>//</span><span>设置页面内容是html编码格式是utf-8</span>
<span>header</span>("Content-Type: text/plain;charset=utf-8"<span>); 
</span><span>//</span><span>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"); 

//定义一个多维数组，包含员工的信息，每条员工信息为一个数组</span>
<span>$staff</span> = <span>array</span><span>
    (
        </span><span>array</span>("name" => "洪七", "number" => "101", "sex" => "男", "job" => "总经理"),
        <span>array</span>("name" => "郭靖", "number" => "102", "sex" => "男", "job" => "开发工程师"),
        <span>array</span>("name" => "黄蓉", "number" => "103", "sex" => "女", "job" => "产品经理"<span>)
    );

</span><span>//</span><span>判断如果是get请求，则进行搜索；如果是POST请求，则进行新建
//$_SERVER是一个超全局变量，在一个脚本的全部作用域中都可用，不用使用global关键字
//$_SERVER["REQUEST_METHOD"]返回访问页面使用的请求方法</span>
<span>if</span> (<span>$_SERVER</span>["REQUEST_METHOD"] == "GET"<span>) {
    search();
} </span><span>elseif</span> (<span>$_SERVER</span>["REQUEST_METHOD"] == "POST"<span>){
    create();
}

</span><span>//</span><span>通过员工编号搜索员工</span>
<span>function</span><span> search(){
    </span><span>//</span><span>检查是否有员工编号的参数
    //isset检测变量是否设置；empty判断值为否为空
    //超全局变量 $_GET 和 $_POST 用于收集表单数据</span>
    <span>if</span> (!<span>isset</span>(<span>$_GET</span>["number"]) || <span>empty</span>(<span>$_GET</span>["number"<span>])) {
        </span><span>echo</span> '{"success":false,"msg":"参数错误"}';<span>//</span><span>jason格式</span>
        <span>return</span><span>;
    }
    </span><span>//</span><span>函数之外声明的变量拥有 Global 作用域，只能在函数以外进行访问。
    //global 关键词用于访问函数内的全局变量</span>
    <span>global</span> <span>$staff</span><span>;
    </span><span>//</span><span>获取number参数</span>
    <span>$number</span> = <span>$_GET</span>["number"<span>];
    </span><span>$result</span> = '{"success":false,"msg":"没有找到员工。"}'<span>;
    
    </span><span>//</span><span>遍历$staff多维数组，查找key值为number的员工是否存在，如果存在，则修改返回结果</span>
    <span>foreach</span> (<span>$staff</span> <span>as</span> <span>$value</span><span>) {
        </span><span>if</span> (<span>$value</span>["number"] == <span>$number</span><span>) {
            </span><span>$result</span> = '{"success":true,"msg":"找到员工：员工编号：' . <span>$value</span>["number"] . 
                            '，员工姓名：' . <span>$value</span>["name"] . 
                            '，员工性别：' . <span>$value</span>["sex"] . 
                            '，员工职位：' . <span>$value</span>["job"] . '"}';<span>//</span><span>jason格式</span>
            <span>break</span><span>;
        }
    }
    </span><span>echo</span> <span>$result</span><span>;
}

</span><span>//</span><span>创建员工</span>
<span>function</span><span> create(){
    </span><span>//</span><span>判断信息是否填写完全</span>
    <span>if</span> (!<span>isset</span>(<span>$_POST</span>["name"]) || <span>empty</span>(<span>$_POST</span>["name"<span>])
        </span>|| !<span>isset</span>(<span>$_POST</span>["number"]) || <span>empty</span>(<span>$_POST</span>["number"<span>])
        </span>|| !<span>isset</span>(<span>$_POST</span>["sex"]) || <span>empty</span>(<span>$_POST</span>["sex"<span>])
        </span>|| !<span>isset</span>(<span>$_POST</span>["job"]) || <span>empty</span>(<span>$_POST</span>["job"<span>])) {
        </span><span>echo</span> '{"success":false,"msg":"参数错误，员工信息填写不全"}'<span>;
        </span><span>return</span><span>;
    }
    </span><span>//</span><span>TODO: 获取POST表单数据并保存到数据库
    
    //提示保存成功</span>
    <span>echo</span> '{"success":true,"msg":"员工：' . <span>$_POST</span>["name"] . ' 信息保存成功！"}'<span>;
}

</span>?>

Salin selepas log masuk

4、下面是jQuery的形式

<span><!</span><span>DOCTYPE HTML</span><span>></span>
<span><</span><span>html</span><span>></span>
<span><</span><span>head</span><span>></span>
<span><</span><span>meta </span><span>http-equiv</span><span>="Content-Type"</span><span> content</span><span>="text/html; charset=utf-8"</span><span>></span>
<span><</span><span>title</span><span>></span>Demo<span></</span><span>title</span><span>></span>
<span><</span><span>style</span><span>></span><span>
body, input, select, button, h1 </span><span>{</span><span>
    font-size</span><span>:</span><span> 28px</span><span>;</span><span>
    line-height</span><span>:</span><span>1.7</span><span>;</span>
<span>}</span>
<span></</span><span>style</span><span>></span>    
<span></</span><span>head</span><span>></span>

<span><</span><span>body</span><span>></span>

<span><</span><span>h1</span><span>></span>员工查询<span></</span><span>h1</span><span>></span>

<span><</span><span>label</span><span>></span>请输入员工编号：<span></</span><span>label</span><span>></span>
<span><</span><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="keyword"</span> <span>/></span>
<span><</span><span>button </span><span>id</span><span>="search"</span><span>></span>查询<span></</span><span>button</span><span>></span>
<span><</span><span>p </span><span>id</span><span>="searchResult"</span><span>></</span><span>p</span><span>></span>

<span><</span><span>h1</span><span>></span>员工新建<span></</span><span>h1</span><span>></span>
<span><</span><span>label</span><span>></span>请输入员工姓名：<span></</span><span>label</span><span>></span>
<span><</span><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="staffName"</span> <span>/><</span><span>br</span><span>></span>
<span><</span><span>label</span><span>></span>请输入员工编号：<span></</span><span>label</span><span>></span>
<span><</span><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="staffNumber"</span> <span>/><</span><span>br</span><span>></span>
<span><</span><span>label</span><span>></span>请选择员工性别：<span></</span><span>label</span><span>></span>
<span><</span><span>select </span><span>id</span><span>="staffSex"</span><span>></span>
<span><</span><span>option</span><span>></span>女<span></</span><span>option</span><span>></span>
<span><</span><span>option</span><span>></span>男<span></</span><span>option</span><span>></span>
<span></</span><span>select</span><span>><</span><span>br</span><span>></span>
<span><</span><span>label</span><span>></span>请输入员工职位：<span></</span><span>label</span><span>></span>
<span><</span><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="staffJob"</span> <span>/><</span><span>br</span><span>></span>
<span><</span><span>button </span><span>id</span><span>="save"</span><span>></span>保存<span></</span><span>button</span><span>></span>
<span><</span><span>p </span><span>id</span><span>="createResult"</span><span>></</span><span>p</span><span>></span>

<span><</span><span>script </span><span>src</span><span>="http://apps.bdimg.com/libs/jquery/1.11.1/jquery.js"</span><span>></</span><span>script</span><span>></span>
<span><</span><span>script</span><span>></span><span>
$(document).ready(</span><span>function</span><span>(){ 
    $(</span><span>"</span><span>#search</span><span>"</span><span>).click(</span><span>function</span><span>(){ 
        $.ajax({ 
            type: </span><span>"</span><span>GET</span><span>"</span><span>,     
            url: </span><span>"</span><span>serverjson2.php?number=</span><span>"</span> <span>+</span><span> $(</span><span>"</span><span>#keyword</span><span>"</span><span>).val(),
            dataType: </span><span>"</span><span>json</span><span>"</span><span>,
            success: </span><span>function</span><span>(data) {
                </span><span>if</span><span> (data.success) { 
                    $(</span><span>"</span><span>#searchResult</span><span>"</span><span>).html(data.msg);
                } </span><span>else</span><span> {
                    $(</span><span>"</span><span>#searchResult</span><span>"</span><span>).html(</span><span>"</span><span>出现错误：</span><span>"</span> <span>+</span><span> data.msg);
                }  
            },
            error: </span><span>function</span><span>(jqXHR){     
               alert(</span><span>"</span><span>发生错误：</span><span>"</span> <span>+</span><span> jqXHR.status);  
            },     
        });
    });
    
    $(</span><span>"</span><span>#save</span><span>"</span><span>).click(</span><span>function</span><span>(){ 
        $.ajax({ 
            type: </span><span>"</span><span>POST</span><span>"</span><span>,     
            url: </span><span>"</span><span>serverjson.php</span><span>"</span><span>,
            data: {
                name: $(</span><span>"</span><span>#staffName</span><span>"</span><span>).val(), 
                number: $(</span><span>"</span><span>#staffNumber</span><span>"</span><span>).val(), 
                sex: $(</span><span>"</span><span>#staffSex</span><span>"</span><span>).val(), 
                job: $(</span><span>"</span><span>#staffJob</span><span>"</span><span>).val()
            },
            dataType: </span><span>"</span><span>json</span><span>"</span><span>,
            success: </span><span>function</span><span>(data){
                </span><span>if</span><span> (data.success) { 
                    $(</span><span>"</span><span>#createResult</span><span>"</span><span>).html(data.msg);
                } </span><span>else</span><span> {
                    $(</span><span>"</span><span>#createResult</span><span>"</span><span>).html(</span><span>"</span><span>出现错误：</span><span>"</span> <span>+</span><span> data.msg);
                }  
            },
            error: </span><span>function</span><span>(jqXHR){     
               alert(</span><span>"</span><span>发生错误：</span><span>"</span> <span>+</span><span> jqXHR.status);  
            },     
        });
    });
});
</span><span></</span><span>script</span><span>></span>
<span></</span><span>body</span><span>></span>
<span></</span><span>html</span><span>></span>

Salin selepas log masuk

<?<span>php
</span><span>//</span><span>设置页面内容是html编码格式是utf-8
//header("Content-Type: text/plain;charset=utf-8"); </span>
<span>header</span>('Access-Control-Allow-Origin:*'<span>);
</span><span>header</span>('Access-Control-Allow-Methods:POST,GET'<span>);
</span><span>header</span>('Access-Control-Allow-Credentials:true'<span>); 
</span><span>header</span>("Content-Type: application/json;charset=utf-8"<span>); 
</span><span>//</span><span>header("Content-Type: text/xml;charset=utf-8"); 
//header("Content-Type: text/html;charset=utf-8"); 
//header("Content-Type: application/javascript;charset=utf-8"); 

//定义一个多维数组，包含员工的信息，每条员工信息为一个数组</span>
<span>$staff</span> = <span>array</span><span>
    (
        </span><span>array</span>("name" => "洪七", "number" => "101", "sex" => "男", "job" => "总经理"),
        <span>array</span>("name" => "郭靖", "number" => "102", "sex" => "男", "job" => "开发工程师"),
        <span>array</span>("name" => "黄蓉", "number" => "103", "sex" => "女", "job" => "产品经理"<span>)
    );

</span><span>//</span><span>判断如果是get请求，则进行搜索；如果是POST请求，则进行新建
//$_SERVER是一个超全局变量，在一个脚本的全部作用域中都可用，不用使用global关键字
//$_SERVER["REQUEST_METHOD"]返回访问页面使用的请求方法</span>
<span>if</span> (<span>$_SERVER</span>["REQUEST_METHOD"] == "GET"<span>) {
    search();
} </span><span>elseif</span> (<span>$_SERVER</span>["REQUEST_METHOD"] == "POST"<span>){
    create();
}

</span><span>//</span><span>通过员工编号搜索员工</span>
<span>function</span><span> search(){
    </span><span>//</span><span>检查是否有员工编号的参数
    //isset检测变量是否设置；empty判断值为否为空
    //超全局变量 $_GET 和 $_POST 用于收集表单数据</span>
    <span>if</span> (!<span>isset</span>(<span>$_GET</span>["number"]) || <span>empty</span>(<span>$_GET</span>["number"<span>])) {
        </span><span>echo</span> '{"success":false,"msg":"参数错误"}'<span>;
        </span><span>return</span><span>;
    }
    </span><span>//</span><span>函数之外声明的变量拥有 Global 作用域，只能在函数以外进行访问。
    //global 关键词用于访问函数内的全局变量</span>
    <span>global</span> <span>$staff</span><span>;
    </span><span>//</span><span>获取number参数</span>
    <span>$number</span> = <span>$_GET</span>["number"<span>];
    </span><span>$result</span> = '{"success":false,"msg":"没有找到员工。"}'<span>;
    
    </span><span>//</span><span>遍历$staff多维数组，查找key值为number的员工是否存在，如果存在，则修改返回结果</span>
    <span>foreach</span> (<span>$staff</span> <span>as</span> <span>$value</span><span>) {
        </span><span>if</span> (<span>$value</span>["number"] == <span>$number</span><span>) {
            </span><span>$result</span> = '{"success":true,"msg":"找到员工：员工编号：' . <span>$value</span>["number"] . 
                            '，员工姓名：' . <span>$value</span>["name"] . 
                            '，员工性别：' . <span>$value</span>["sex"] . 
                            '，员工职位：' . <span>$value</span>["job"] . '"}'<span>;
            </span><span>break</span><span>;
        }
    }
    </span><span>echo</span> <span>$result</span><span>;
}

</span><span>//</span><span>创建员工</span>
<span>function</span><span> create(){
    </span><span>//</span><span>判断信息是否填写完全</span>
    <span>if</span> (!<span>isset</span>(<span>$_POST</span>["name"]) || <span>empty</span>(<span>$_POST</span>["name"<span>])
        </span>|| !<span>isset</span>(<span>$_POST</span>["number"]) || <span>empty</span>(<span>$_POST</span>["number"<span>])
        </span>|| !<span>isset</span>(<span>$_POST</span>["sex"]) || <span>empty</span>(<span>$_POST</span>["sex"<span>])
        </span>|| !<span>isset</span>(<span>$_POST</span>["job"]) || <span>empty</span>(<span>$_POST</span>["job"<span>])) {
        </span><span>echo</span> '{"success":false,"msg":"参数错误，员工信息填写不全"}'<span>;
        </span><span>return</span><span>;
    }
    </span><span>//</span><span>TODO: 获取POST表单数据并保存到数据库
    
    //提示保存成功</span>
    <span>echo</span> '{"success":true,"msg":"员工：' . <span>$_POST</span>["name"] . ' 信息保存成功！"}'<span>;
}

</span>?>

Salin selepas log masuk

Kenyataan Laman Web ini

Kandungan artikel ini disumbangkan secara sukarela oleh netizen, dan hak cipta adalah milik pengarang asal. Laman web ini tidak memikul tanggungjawab undang-undang yang sepadan. Jika anda menemui sebarang kandungan yang disyaki plagiarisme atau pelanggaran, sila hubungi admin@php.cn

Alat AI Hot

Undresser.AI Undress

Apl berkuasa AI untuk mencipta foto bogel yang realistik

AI Clothes Remover

Alat AI dalam talian untuk mengeluarkan pakaian daripada foto.

Undress AI Tool

Gambar buka pakaian secara percuma

Clothoff.io

Penyingkiran pakaian AI

AI Hentai Generator

Menjana ai hentai secara percuma.

Tunjukkan Lagi

Artikel Panas

R.E.P.O. Kristal tenaga dijelaskan dan apa yang mereka lakukan (kristal kuning)

2 minggu yang lalu By 尊渡假赌尊渡假赌尊渡假赌

Berapa lama masa yang diperlukan untuk mengalahkan fiksyen berpecah?

1 bulan yang lalu By DDD

R.E.P.O. Tetapan grafik terbaik

2 minggu yang lalu By 尊渡假赌尊渡假赌尊渡假赌

Assassin's Creed Shadows: Penyelesaian Riddle Seashell

1 minggu yang lalu By DDD

R.E.P.O. Cara Memperbaiki Audio Jika anda tidak dapat mendengar sesiapa

3 minggu yang lalu By 尊渡假赌尊渡假赌尊渡假赌

Tunjukkan Lagi

Alat panas

Notepad++7.3.1

Editor kod yang mudah digunakan dan percuma

SublimeText3 versi Cina

Versi Cina, sangat mudah digunakan

Hantar Studio 13.0.1

Persekitaran pembangunan bersepadu PHP yang berkuasa

Dreamweaver CS6

Alat pembangunan web visual

SublimeText3 versi Mac

Perisian penyuntingan kod peringkat Tuhan (SublimeText3)

Tunjukkan Lagi

Topik panas

Di manakah pintu masuk log masuk untuk e-mel gmail?

7413

Tutorial CakePHP

1359

Apakah format nama akaun stim

kunci pengaktifan win11 kekal

Tunjukkan Lagi

Related knowledge

Bagaimana untuk menyelesaikan ralat 403 yang dihadapi oleh permintaan jQuery AJAX Feb 20, 2024 am 10:07 AM

Tajuk: Kaedah dan contoh kod untuk menyelesaikan ralat 403 dalam permintaan AJAX jQuery Ralat 403 merujuk kepada permintaan bahawa pelayan melarang akses kepada sumber Ralat ini biasanya berlaku kerana permintaan itu tidak mempunyai kebenaran atau ditolak oleh pelayan. Apabila membuat permintaan jQueryAJAX, anda kadangkala menghadapi situasi ini Artikel ini akan memperkenalkan cara menyelesaikan masalah ini dan memberikan contoh kod. Penyelesaian: Semak kebenaran: Mula-mula pastikan alamat URL yang diminta adalah betul dan sahkan bahawa anda mempunyai kebenaran yang mencukupi untuk mengakses sumber tersebut.

Bagaimana untuk menyelesaikan ralat permintaan jQuery AJAX 403 Feb 19, 2024 pm 05:55 PM

jQuery ialah perpustakaan JavaScript popular yang digunakan untuk memudahkan pembangunan sisi klien. AJAX ialah teknologi yang menghantar permintaan tak segerak dan berinteraksi dengan pelayan tanpa memuatkan semula keseluruhan halaman web. Walau bagaimanapun, apabila menggunakan jQuery untuk membuat permintaan AJAX, anda kadangkala menghadapi 403 ralat. Ralat 403 biasanya ralat akses yang dinafikan pelayan, mungkin disebabkan oleh dasar keselamatan atau isu kebenaran. Dalam artikel ini, kami akan membincangkan cara menyelesaikan permintaan jQueryAJAX yang menghadapi ralat 403

Bagaimana untuk mendapatkan pembolehubah daripada kaedah PHP menggunakan Ajax? Mar 09, 2024 pm 05:36 PM

Menggunakan Ajax untuk mendapatkan pembolehubah daripada kaedah PHP adalah senario biasa dalam pembangunan web Melalui Ajax, halaman boleh diperoleh secara dinamik tanpa menyegarkan data. Dalam artikel ini, kami akan memperkenalkan cara menggunakan Ajax untuk mendapatkan pembolehubah daripada kaedah PHP, dan memberikan contoh kod khusus. Pertama, kita perlu menulis fail PHP untuk mengendalikan permintaan Ajax dan mengembalikan pembolehubah yang diperlukan. Berikut ialah kod contoh untuk fail PHP mudah getData.php:

Bagaimana untuk menyelesaikan masalah jQuery AJAX ralat 403? Feb 23, 2024 pm 04:27 PM

Bagaimana untuk menyelesaikan masalah jQueryAJAX ralat 403? Apabila membangunkan aplikasi web, jQuery sering digunakan untuk menghantar permintaan tak segerak. Walau bagaimanapun, kadangkala anda mungkin menghadapi kod ralat 403 apabila menggunakan jQueryAJAX, menunjukkan bahawa akses dilarang oleh pelayan. Ini biasanya disebabkan oleh tetapan keselamatan bahagian pelayan, tetapi terdapat cara untuk mengatasinya. Artikel ini akan memperkenalkan cara menyelesaikan masalah ralat jQueryAJAX 403 dan memberikan contoh kod khusus. 1. membuat

PHP dan Ajax: Membina enjin cadangan autolengkap Jun 02, 2024 pm 08:39 PM

Bina enjin cadangan autolengkap menggunakan PHP dan Ajax: Skrip sisi pelayan: mengendalikan permintaan Ajax dan mengembalikan cadangan (autocomplete.php). Skrip pelanggan: Hantar permintaan Ajax dan cadangan paparan (autocomplete.js). Kes praktikal: Sertakan skrip dalam halaman HTML dan nyatakan pengecam elemen input carian.

PHP lwn. Ajax: Penyelesaian untuk mencipta kandungan yang dimuatkan secara dinamik Jun 06, 2024 pm 01:12 PM

Ajax (JavaScript Asynchronous dan XML) membenarkan menambah kandungan dinamik tanpa memuatkan semula halaman. Menggunakan PHP dan Ajax, anda boleh memuatkan senarai produk secara dinamik: HTML mencipta halaman dengan elemen kontena dan permintaan Ajax menambah data pada elemen selepas memuatkannya. JavaScript menggunakan Ajax untuk menghantar permintaan kepada pelayan melalui XMLHttpRequest untuk mendapatkan data produk dalam format JSON daripada pelayan. PHP menggunakan MySQL untuk menanyakan data produk daripada pangkalan data dan mengekodnya ke dalam format JSON. JavaScript menghuraikan data JSON dan memaparkannya dalam bekas halaman. Mengklik butang mencetuskan permintaan Ajax untuk memuatkan senarai produk.

Apakah versi ajax? Nov 22, 2023 pm 02:00 PM

Ajax bukanlah versi khusus, tetapi teknologi yang menggunakan koleksi teknologi untuk memuatkan dan mengemas kini kandungan halaman web secara tidak segerak. Ajax tidak mempunyai nombor versi tertentu, tetapi terdapat beberapa variasi atau sambungan ajax: 1. jQuery AJAX 2. Axios 4. JSONP 5. XMLHttpRequest 7. Server; -Acara Dihantar; 8, GraphQL, dsb.

Pertukaran data tak segerak menggunakan fungsi Ajax Jan 26, 2024 am 09:41 AM

Cara menggunakan fungsi Ajax untuk mencapai interaksi data tak segerak Dengan perkembangan teknologi Internet dan Web, interaksi data antara bahagian hadapan dan bahagian belakang telah menjadi sangat penting. Kaedah interaksi data tradisional, seperti penyegaran halaman dan penyerahan borang, tidak lagi dapat memenuhi keperluan pengguna. Ajax (JavaScript Asynchronous dan XML) telah menjadi alat penting untuk interaksi data tak segerak. Ajax membolehkan web menggunakan JavaScript dan objek XMLHttpRequest

See all articles