John erläutert den PHP-Bestätigungscode-php手册-php.cn

Erläutern Sie die Erstellung einer Verifizierungscodeklasse in PHP

Ich habe hier einen Verifizierungscode-Kurs geschrieben. Ich werde zeigen, wie man ihn verwendet. Ich bin ein Anfänger, also überspringen Sie ihn bitte. Lassen Sie mich erklären, wie man es benutzt. Es sind nur zwei Schritte erforderlich.

Schritt eins:

Laden Sie den von mir erstellten Verifizierungscode-Kurs herunter. Download-Adresse: http://files.cnblogs.com/files/xfjpeter/Verify.zip

Schritt 2:

1. Erstellen Sie eine Ein-Wort-Bestätigungscodedatei

<span style="color: #008080;"> 1</span> <?<span style="color: #000000;">php
</span><span style="color: #008080;"> 2</span> 
<span style="color: #008080;"> 3</span> <span style="color: #008000;">#</span><span style="color: #008000;">引入验证码类文件</span>
<span style="color: #008080;"> 4</span> <span style="color: #0000ff;">require_once</span>('Verify.class.php'<span style="color: #000000;">);
</span><span style="color: #008080;"> 5</span> 
<span style="color: #008080;"> 6</span> <span style="color: #008000;">#</span><span style="color: #008000;">实例化验证码类</span>
<span style="color: #008080;"> 7</span> <span style="color: #008000;">#</span><span style="color: #008000;">初始化的使用可以传四个参数，分别是：验证码图片的长、高，验证码的长度，验证码的类型（验证码的类型需要将bgRand属性设置为false）</span>
<span style="color: #008080;"> 8</span> <span style="color: #800080;">$code</span> = <span style="color: #0000ff;">new</span> Verify(140, 40, 6, 6<span style="color: #000000;">);
</span><span style="color: #008080;"> 9</span> 
<span style="color: #008080;">10</span> <span style="color: #008000;">#</span><span style="color: #008000;">设置验证码图片的长度</span>
<span style="color: #008080;">11</span> <span style="color: #800080;">$code</span> -> width = 200<span style="color: #000000;">;
</span><span style="color: #008080;">12</span> 
<span style="color: #008080;">13</span> <span style="color: #008000;">#</span><span style="color: #008000;">设置验证码图片的高度</span>
<span style="color: #008080;">14</span> <span style="color: #800080;">$code</span> -> height = 60<span style="color: #000000;">;
</span><span style="color: #008080;">15</span> 
<span style="color: #008080;">16</span> <span style="color: #008000;">#</span><span style="color: #008000;">是否随机背景，默认true（随机）</span>
<span style="color: #008080;">17</span> <span style="color: #800080;">$code</span> -> bgRand = <span style="color: #0000ff;">false</span><span style="color: #000000;">;
</span><span style="color: #008080;">18</span> 
<span style="color: #008080;">19</span> <span style="color: #008000;">#</span><span style="color: #008000;">显示验证码</span>
<span style="color: #008080;">20</span> <span style="color: #800080;">$code</span> -> verify();

Nach dem Login kopieren

Der generierte Bildstil ist wie in der Abbildung dargestellt

2. Die Bestätigungscodedatei ist

<span style="color: #008080;">  1</span> <?<span style="color: #000000;">php
</span><span style="color: #008080;">  2</span> 
<span style="color: #008080;">  3</span> <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;">  4</span> <span style="color: #008000;"> * 验证码类
</span><span style="color: #008080;">  5</span> <span style="color: #008000;"> * @author John <fsyzxz@163.com>
<span style="color: #008080;">  6</span>  <span style="color: #008000;">*/</span>
<span style="color: #008080;">  7</span> <span style="color: #0000ff;">class</span><span style="color: #000000;"> Verify
</span><span style="color: #008080;">  8</span> <span style="color: #000000;">{
</span><span style="color: #008080;">  9</span>     <span style="color: #0000ff;">private</span> <span style="color: #800080;">$width</span> = 160;       <span style="color: #008000;">//</span><span style="color: #008000;">验证码的宽度</span>
<span style="color: #008080;"> 10</span>     <span style="color: #0000ff;">private</span> <span style="color: #800080;">$height</span> = 60;       <span style="color: #008000;">//</span><span style="color: #008000;">验证码的高度</span>
<span style="color: #008080;"> 11</span>     <span style="color: #0000ff;">private</span> <span style="color: #800080;">$type</span> = 1;          <span style="color: #008000;">//</span><span style="color: #008000;">验证码的类型</span>
<span style="color: #008080;"> 12</span>     <span style="color: #0000ff;">private</span> <span style="color: #800080;">$length</span> = 4;        <span style="color: #008000;">//</span><span style="color: #008000;">验证码的长度</span>
<span style="color: #008080;"> 13</span>     <span style="color: #0000ff;">private</span> <span style="color: #800080;">$code</span>;              <span style="color: #008000;">//</span><span style="color: #008000;">验证码</span>
<span style="color: #008080;"> 14</span>     <span style="color: #0000ff;">private</span> <span style="color: #800080;">$img</span>;               <span style="color: #008000;">//</span><span style="color: #008000;">图像的资源</span>
<span style="color: #008080;"> 15</span>     <span style="color: #0000ff;">private</span> <span style="color: #800080;">$seKey</span> = 'John';    <span style="color: #008000;">//</span><span style="color: #008000;">密钥</span>
<span style="color: #008080;"> 16</span>     <span style="color: #0000ff;">private</span> <span style="color: #800080;">$bgRand</span> = <span style="color: #0000ff;">true</span>;     <span style="color: #008000;">//</span><span style="color: #008000;">随机背景图片</span>
<span style="color: #008080;"> 17</span>     
<span style="color: #008080;"> 18</span>     <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;"> 19</span> <span style="color: #008000;">     * 构造函数
</span><span style="color: #008080;"> 20</span> <span style="color: #008000;">     * @param type $width 验证码的宽度
</span><span style="color: #008080;"> 21</span> <span style="color: #008000;">     * @param type $height 验证码的高度
</span><span style="color: #008080;"> 22</span> <span style="color: #008000;">     * @param type $length 验证码的长度
</span><span style="color: #008080;"> 23</span> <span style="color: #008000;">     * @param type $type 验证码的类型
</span><span style="color: #008080;"> 24</span>      <span style="color: #008000;">*/</span>
<span style="color: #008080;"> 25</span>     <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span> __construct(<span style="color: #800080;">$width</span> = 160, <span style="color: #800080;">$height</span> = 40, <span style="color: #800080;">$length</span> = 4, <span style="color: #800080;">$type</span> = 1<span style="color: #000000;">)
</span><span style="color: #008080;"> 26</span> <span style="color: #000000;">    {
</span><span style="color: #008080;"> 27</span>         <span style="color: #800080;">$this</span>->width  = !<span style="color: #0000ff;">empty</span>(<span style="color: #800080;">$width</span>)  ? <span style="color: #800080;">$width</span>  : <span style="color: #800080;">$this</span>-><span style="color: #000000;">width;
</span><span style="color: #008080;"> 28</span>         <span style="color: #800080;">$this</span>->height = !<span style="color: #0000ff;">empty</span>(<span style="color: #800080;">$height</span>) ? <span style="color: #800080;">$height</span> : <span style="color: #800080;">$this</span>-><span style="color: #000000;">height;
</span><span style="color: #008080;"> 29</span>         <span style="color: #800080;">$this</span>->length = !<span style="color: #0000ff;">empty</span>(<span style="color: #800080;">$length</span>) ? <span style="color: #800080;">$length</span> : <span style="color: #800080;">$this</span>-><span style="color: #000000;">length;
</span><span style="color: #008080;"> 30</span>         <span style="color: #800080;">$this</span>->type   = !<span style="color: #0000ff;">empty</span>(<span style="color: #800080;">$type</span>)   ? <span style="color: #800080;">$type</span>   : <span style="color: #800080;">$this</span>-><span style="color: #000000;">type;
</span><span style="color: #008080;"> 31</span> <span style="color: #000000;">    }
</span><span style="color: #008080;"> 32</span>     
<span style="color: #008080;"> 33</span>     <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;"> 34</span> <span style="color: #008000;">     * 设置属性值
</span><span style="color: #008080;"> 35</span> <span style="color: #008000;">     * @param type $name 属性名
</span><span style="color: #008080;"> 36</span> <span style="color: #008000;">     * @param type $value 属性值
</span><span style="color: #008080;"> 37</span>      <span style="color: #008000;">*/</span>
<span style="color: #008080;"> 38</span>     <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span> __set(<span style="color: #800080;">$name</span>, <span style="color: #800080;">$value</span><span style="color: #000000;">)
</span><span style="color: #008080;"> 39</span> <span style="color: #000000;">    {
</span><span style="color: #008080;"> 40</span>         <span style="color: #0000ff;">if</span> (<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$name</span><span style="color: #000000;">)) {
</span><span style="color: #008080;"> 41</span>             <span style="color: #800080;">$this</span>-><span style="color: #800080;">$name</span> = <span style="color: #800080;">$value</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 42</span> <span style="color: #000000;">        }
</span><span style="color: #008080;"> 43</span> <span style="color: #000000;">    }
</span><span style="color: #008080;"> 44</span>     
<span style="color: #008080;"> 45</span>     <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;"> 46</span> <span style="color: #008000;">     * 获取属性值
</span><span style="color: #008080;"> 47</span> <span style="color: #008000;">     * @param type $name 属性名
</span><span style="color: #008080;"> 48</span> <span style="color: #008000;">     * @return type 返回属性值
</span><span style="color: #008080;"> 49</span>      <span style="color: #008000;">*/</span>
<span style="color: #008080;"> 50</span>     <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span> __get(<span style="color: #800080;">$name</span><span style="color: #000000;">) {
</span><span style="color: #008080;"> 51</span>         <span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>-><span style="color: #800080;">$name</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 52</span> <span style="color: #000000;">    }
</span><span style="color: #008080;"> 53</span>     
<span style="color: #008080;"> 54</span>     <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;"> 55</span> <span style="color: #008000;">     * 校验验证码
</span><span style="color: #008080;"> 56</span> <span style="color: #008000;">     * @param type $code 表单提供的验证码
</span><span style="color: #008080;"> 57</span> <span style="color: #008000;">     * @return boolean
</span><span style="color: #008080;"> 58</span>      <span style="color: #008000;">*/</span>
<span style="color: #008080;"> 59</span>     <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span> check(<span style="color: #800080;">$code</span><span style="color: #000000;">){
</span><span style="color: #008080;"> 60</span>         <span style="color: #0000ff;">if</span> (!<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_SESSION</span>)) {<span style="color: #008080;">session_start</span><span style="color: #000000;">();}
</span><span style="color: #008080;"> 61</span>         <span style="color: #0000ff;">if</span> (<span style="color: #800080;">$this</span>->encodeVerify(<span style="color: #008080;">strtolower</span>(<span style="color: #800080;">$code</span>)) === <span style="color: #800080;">$_SESSION</span>['code'<span style="color: #000000;">]){
</span><span style="color: #008080;"> 62</span>             <span style="color: #0000ff;">return</span> <span style="color: #0000ff;">true</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 63</span>         }<span style="color: #0000ff;">else</span><span style="color: #000000;">{
</span><span style="color: #008080;"> 64</span>             <span style="color: #0000ff;">return</span> <span style="color: #0000ff;">false</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 65</span> <span style="color: #000000;">        }
</span><span style="color: #008080;"> 66</span> <span style="color: #000000;">    }
</span><span style="color: #008080;"> 67</span>     
<span style="color: #008080;"> 68</span>     <span style="color: #008000;">//</span><span style="color: #008000;">输出验证码</span>
<span style="color: #008080;"> 69</span>     <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> verify()
</span><span style="color: #008080;"> 70</span> <span style="color: #000000;">    {
</span><span style="color: #008080;"> 71</span>         <span style="color: #800080;">$this</span>->code = <span style="color: #800080;">$this</span>-><span style="color: #000000;">createVerify();
</span><span style="color: #008080;"> 72</span>         <span style="color: #008000;">//</span><span style="color: #008000;">创建背景</span>
<span style="color: #008080;"> 73</span>         <span style="color: #800080;">$this</span>-><span style="color: #000000;">createBackground();
</span><span style="color: #008080;"> 74</span>         <span style="color: #008000;">//</span><span style="color: #008000;">文字显示</span>
<span style="color: #008080;"> 75</span>         <span style="color: #800080;">$this</span>-><span style="color: #000000;">writeString();
</span><span style="color: #008080;"> 76</span>         <span style="color: #008000;">//</span><span style="color: #008000;">画干扰线</span>
<span style="color: #008080;"> 77</span>         <span style="color: #800080;">$this</span>-><span style="color: #000000;">paitLine();
</span><span style="color: #008080;"> 78</span>         <span style="color: #008000;">//</span><span style="color: #008000;">输入图像</span>
<span style="color: #008080;"> 79</span>         <span style="color: #800080;">$this</span>-><span style="color: #000000;">printImg();
</span><span style="color: #008080;"> 80</span> <span style="color: #000000;">    }
</span><span style="color: #008080;"> 81</span>     
<span style="color: #008080;"> 82</span>     <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;"> 83</span> <span style="color: #008000;">     * 创建背景图片
</span><span style="color: #008080;"> 84</span>      <span style="color: #008000;">*/</span>
<span style="color: #008080;"> 85</span>     <span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> createBackground()
</span><span style="color: #008080;"> 86</span> <span style="color: #000000;">    {
</span><span style="color: #008080;"> 87</span>         <span style="color: #008000;">//</span><span style="color: #008000;">从图片库创建一个图像, 判断是否随机</span>
<span style="color: #008080;"> 88</span>         <span style="color: #0000ff;">if</span> (<span style="color: #800080;">$this</span>-><span style="color: #000000;">bgRand){
</span><span style="color: #008080;"> 89</span>             <span style="color: #800080;">$img</span> = imagecreatefromjpeg('./verify/bgs/'.<span style="color: #008080;">mt_rand</span>(1,8).'.jpg'<span style="color: #000000;">);
</span><span style="color: #008080;"> 90</span>         }<span style="color: #0000ff;">else</span><span style="color: #000000;">{
</span><span style="color: #008080;"> 91</span>             <span style="color: #800080;">$img</span> = imagecreatefromjpeg('./verify/bgs/'.<span style="color: #800080;">$this</span>->type.'.jpg'<span style="color: #000000;">);
</span><span style="color: #008080;"> 92</span> <span style="color: #000000;">        }
</span><span style="color: #008080;"> 93</span>         <span style="color: #008000;">//</span><span style="color: #008000;">创建一个图片</span>
<span style="color: #008080;"> 94</span>         <span style="color: #800080;">$this</span>->img = imagecreatetruecolor(<span style="color: #800080;">$this</span>->width, <span style="color: #800080;">$this</span>-><span style="color: #000000;">height);
</span><span style="color: #008080;"> 95</span>         <span style="color: #008000;">//</span><span style="color: #008000;">把图片复制到创建的图像上</span>
<span style="color: #008080;"> 96</span>         imagecopyresampled(<span style="color: #800080;">$this</span>->img, <span style="color: #800080;">$img</span>, 0, 0, 0, 0, <span style="color: #800080;">$this</span>->width, <span style="color: #800080;">$this</span>->height, imagesx(<span style="color: #800080;">$img</span>), imagesy(<span style="color: #800080;">$img</span><span style="color: #000000;">));
</span><span style="color: #008080;"> 97</span> <span style="color: #000000;">    }
</span><span style="color: #008080;"> 98</span>     
<span style="color: #008080;"> 99</span>     <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;">100</span> <span style="color: #008000;">     * 在图片上写字
</span><span style="color: #008080;">101</span>      <span style="color: #008000;">*/</span>
<span style="color: #008080;">102</span>     <span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> writeString()
</span><span style="color: #008080;">103</span> <span style="color: #000000;">    {
</span><span style="color: #008080;">104</span>         <span style="color: #800080;">$color</span> = imagecolorallocatealpha(<span style="color: #800080;">$this</span>->img, <span style="color: #008080;">mt_rand</span>(0,128), <span style="color: #008080;">mt_rand</span>(0,128), <span style="color: #008080;">mt_rand</span>(0,128), 0<span style="color: #000000;">);
</span><span style="color: #008080;">105</span>         <span style="color: #800080;">$fontType</span> = './verify/ttfs/'.<span style="color: #008080;">mt_rand</span>(1,6).'.ttf'<span style="color: #000000;">;
</span><span style="color: #008080;">106</span>         <span style="color: #800080;">$fontSize</span> = <span style="color: #008080;">mt_rand</span>(15, 20<span style="color: #000000;">);
</span><span style="color: #008080;">107</span>         <span style="color: #0000ff;">for</span> (<span style="color: #800080;">$i</span> = 0; <span style="color: #800080;">$i</span> < <span style="color: #800080;">$this</span>->length; <span style="color: #800080;">$i</span>++<span style="color: #000000;">) {
</span><span style="color: #008080;">108</span>             <span style="color: #800080;">$x</span> = 3+(<span style="color: #800080;">$this</span>->width/<span style="color: #800080;">$this</span>->length)*<span style="color: #800080;">$i</span><span style="color: #000000;">;
</span><span style="color: #008080;">109</span>             <span style="color: #800080;">$y</span> = <span style="color: #008080;">mt_rand</span>((<span style="color: #800080;">$this</span>->height/3)*2, (<span style="color: #800080;">$this</span>->height/3)*2<span style="color: #000000;">);
</span><span style="color: #008080;">110</span>             <span style="color: #008000;">//</span><span style="color: #008000;">把验证码写在图片上</span>
<span style="color: #008080;">111</span>             imagettftext(<span style="color: #800080;">$this</span>->img, <span style="color: #800080;">$fontSize</span>, 0, <span style="color: #800080;">$x</span>, <span style="color: #800080;">$y</span>, <span style="color: #800080;">$color</span>, <span style="color: #800080;">$fontType</span>, <span style="color: #800080;">$this</span>->code[<span style="color: #800080;">$i</span><span style="color: #000000;">]);
</span><span style="color: #008080;">112</span> <span style="color: #000000;">        }
</span><span style="color: #008080;">113</span> <span style="color: #000000;">    }
</span><span style="color: #008080;">114</span>     
<span style="color: #008080;">115</span>     <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;">116</span> <span style="color: #008000;">     * 画干扰线和字母
</span><span style="color: #008080;">117</span>      <span style="color: #008000;">*/</span>
<span style="color: #008080;">118</span>     <span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> paitLine()
</span><span style="color: #008080;">119</span> <span style="color: #000000;">    {
</span><span style="color: #008080;">120</span>         <span style="color: #800080;">$px</span> = <span style="color: #800080;">$py</span> = 0<span style="color: #000000;">;
</span><span style="color: #008080;">121</span>         <span style="color: #800080;">$codes</span> = '2345678abcdefhijkmnpqrstuvwxyz'<span style="color: #000000;">;
</span><span style="color: #008080;">122</span>         <span style="color: #0000ff;">for</span> (<span style="color: #800080;">$i</span> = 0; <span style="color: #800080;">$i</span> < <span style="color: #800080;">$this</span>->width/4; <span style="color: #800080;">$i</span>++<span style="color: #000000;">){
</span><span style="color: #008080;">123</span>             <span style="color: #800080;">$num</span> = <span style="color: #008080;">mt_rand</span>(0, <span style="color: #008080;">strlen</span>(<span style="color: #800080;">$codes</span>)-1<span style="color: #000000;">);
</span><span style="color: #008080;">124</span>             <span style="color: #800080;">$color</span> = imagecolorallocatealpha(<span style="color: #800080;">$this</span>->img, 255, 255, 255, 80<span style="color: #000000;">);
</span><span style="color: #008080;">125</span>             <span style="color: #008000;">//</span><span style="color: #008000;">画字母</span>
<span style="color: #008080;">126</span>             imagechar(<span style="color: #800080;">$this</span>->img, 8, <span style="color: #008080;">mt_rand</span>(3, <span style="color: #800080;">$this</span>->width), <span style="color: #008080;">mt_rand</span>(3, <span style="color: #800080;">$this</span>->height), <span style="color: #800080;">$codes</span>{<span style="color: #800080;">$num</span>}, <span style="color: #800080;">$color</span><span style="color: #000000;">);
</span><span style="color: #008080;">127</span> <span style="color: #000000;">        }
</span><span style="color: #008080;">128</span> <span style="color: #000000;">    }
</span><span style="color: #008080;">129</span>     
<span style="color: #008080;">130</span>     <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;">131</span> <span style="color: #008000;">     * 输入图像
</span><span style="color: #008080;">132</span>      <span style="color: #008000;">*/</span>
<span style="color: #008080;">133</span>     <span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> printImg()
</span><span style="color: #008080;">134</span> <span style="color: #000000;">    {
</span><span style="color: #008080;">135</span>         <span style="color: #0000ff;">if</span>(<span style="color: #008080;">function_exists</span>('imagegif'<span style="color: #000000;">)){
</span><span style="color: #008080;">136</span>             <span style="color: #008000;">//</span><span style="color: #008000;"> 针对 GIF</span>
<span style="color: #008080;">137</span>             <span style="color: #008080;">header</span>('Content-Type: image/gif'<span style="color: #000000;">);
</span><span style="color: #008080;">138</span>             imagegif(<span style="color: #800080;">$this</span>-><span style="color: #000000;">img);
</span><span style="color: #008080;">139</span>         }<span style="color: #0000ff;">elseif</span>(<span style="color: #008080;">function_exists</span>('imagejpeg'<span style="color: #000000;">)){
</span><span style="color: #008080;">140</span>             <span style="color: #008000;">//</span><span style="color: #008000;"> 针对 JPEG</span>
<span style="color: #008080;">141</span>             <span style="color: #008080;">header</span>('Content-Type: image/jpeg'<span style="color: #000000;">);
</span><span style="color: #008080;">142</span>             imagejpeg(<span style="color: #800080;">$this</span>->img, <span style="color: #0000ff;">NULL</span>, 100<span style="color: #000000;">);
</span><span style="color: #008080;">143</span>         }<span style="color: #0000ff;">elseif</span>(<span style="color: #008080;">function_exists</span>('imagepng'<span style="color: #000000;">)){
</span><span style="color: #008080;">144</span>             <span style="color: #008000;">//</span><span style="color: #008000;"> 针对 PNG</span>
<span style="color: #008080;">145</span>             <span style="color: #008080;">header</span>('Content-Type: image/png'<span style="color: #000000;">);
</span><span style="color: #008080;">146</span>             imagepng(<span style="color: #800080;">$this</span>-><span style="color: #000000;">img);
</span><span style="color: #008080;">147</span>         }<span style="color: #0000ff;">elseif</span>(<span style="color: #008080;">function_exists</span>('imagewbmp'<span style="color: #000000;">)){
</span><span style="color: #008080;">148</span>             <span style="color: #008000;">//</span><span style="color: #008000;"> 针对 WBMP</span>
<span style="color: #008080;">149</span>             <span style="color: #008080;">header</span>('Content-Type: image/vnd.wap.wbmp'<span style="color: #000000;">);
</span><span style="color: #008080;">150</span>             imagewbmp(<span style="color: #800080;">$this</span>-><span style="color: #000000;">img);
</span><span style="color: #008080;">151</span> <span style="color: #000000;">        }
</span><span style="color: #008080;">152</span> <span style="color: #000000;">    }
</span><span style="color: #008080;">153</span>     
<span style="color: #008080;">154</span>     <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;">155</span> <span style="color: #008000;">     * 生成验证码
</span><span style="color: #008080;">156</span> <span style="color: #008000;">     * @return string 返回生成的验证码
</span><span style="color: #008080;">157</span>      <span style="color: #008000;">*/</span>
<span style="color: #008080;">158</span>     <span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> createVerify()
</span><span style="color: #008080;">159</span> <span style="color: #000000;">    {
</span><span style="color: #008080;">160</span>         <span style="color: #800080;">$codeSet</span> = '2345678abcdefhijkmnpqrstuvwxyz'<span style="color: #000000;">;
</span><span style="color: #008080;">161</span>         <span style="color: #800080;">$codes</span> = ''<span style="color: #000000;">;
</span><span style="color: #008080;">162</span>         <span style="color: #0000ff;">for</span> (<span style="color: #800080;">$i</span> = 0; <span style="color: #800080;">$i</span> < <span style="color: #800080;">$this</span>->length; <span style="color: #800080;">$i</span>++<span style="color: #000000;">) {
</span><span style="color: #008080;">163</span>             <span style="color: #800080;">$codes</span> .= <span style="color: #800080;">$codeSet</span>[<span style="color: #008080;">mt_rand</span>(0, <span style="color: #008080;">strlen</span>(<span style="color: #800080;">$codeSet</span>)-1<span style="color: #000000;">)];
</span><span style="color: #008080;">164</span> <span style="color: #000000;">        }
</span><span style="color: #008080;">165</span>         <span style="color: #008000;">//</span><span style="color: #008000;">把验证码保存到session中</span>
<span style="color: #008080;">166</span>         <span style="color: #0000ff;">if</span> (!<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_SESSION</span>)) {<span style="color: #008080;">session_start</span><span style="color: #000000;">();}
</span><span style="color: #008080;">167</span>         <span style="color: #800080;">$_SESSION</span>['code'] = <span style="color: #800080;">$this</span>->encodeVerify(<span style="color: #008080;">strtolower</span>(<span style="color: #800080;">$codes</span><span style="color: #000000;">));
</span><span style="color: #008080;">168</span> <span style="color: #008000;">//</span><span style="color: #008000;">        $_SESSION['code'] = $codes;</span>
<span style="color: #008080;">169</span>         <span style="color: #0000ff;">return</span> <span style="color: #800080;">$codes</span><span style="color: #000000;">;
</span><span style="color: #008080;">170</span> <span style="color: #000000;">    }
</span><span style="color: #008080;">171</span>     
<span style="color: #008080;">172</span>     <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;">173</span> <span style="color: #008000;">     * 加密验证码
</span><span style="color: #008080;">174</span> <span style="color: #008000;">     * @param type $string
</span><span style="color: #008080;">175</span> <span style="color: #008000;">     * @return type
</span><span style="color: #008080;">176</span>      <span style="color: #008000;">*/</span>
<span style="color: #008080;">177</span>     <span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> encodeVerify(<span style="color: #800080;">$string</span><span style="color: #000000;">)
</span><span style="color: #008080;">178</span> <span style="color: #000000;">    {
</span><span style="color: #008080;">179</span>         <span style="color: #800080;">$key</span> = <span style="color: #008080;">substr</span>(<span style="color: #008080;">md5</span>(<span style="color: #800080;">$this</span>->seKey), 5, 8<span style="color: #000000;">);
</span><span style="color: #008080;">180</span>         <span style="color: #800080;">$str</span> = <span style="color: #008080;">substr</span>(<span style="color: #008080;">md5</span>(<span style="color: #800080;">$string</span>), 8, 10<span style="color: #000000;">);
</span><span style="color: #008080;">181</span>         <span style="color: #0000ff;">return</span> <span style="color: #008080;">md5</span>(<span style="color: #800080;">$key</span> . <span style="color: #800080;">$str</span><span style="color: #000000;">);
</span><span style="color: #008080;">182</span> <span style="color: #000000;">    }
</span><span style="color: #008080;">183</span>     
<span style="color: #008080;">184</span>     <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;">185</span> <span style="color: #008000;">     * 销毁图像
</span><span style="color: #008080;">186</span>      <span style="color: #008000;">*/</span>
<span style="color: #008080;">187</span>     <span style="color: #0000ff;">function</span><span style="color: #000000;"> __destruct()
</span><span style="color: #008080;">188</span> <span style="color: #000000;">    {
</span><span style="color: #008080;">189</span>         <span style="color: #0000ff;">if</span> (<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$this</span>-><span style="color: #000000;">img)){
</span><span style="color: #008080;">190</span>             imagedestroy(<span style="color: #800080;">$this</span>-><span style="color: #000000;">img);
</span><span style="color: #008080;">191</span> <span style="color: #000000;">        }
</span><span style="color: #008080;">192</span> <span style="color: #000000;">    }
</span><span style="color: #008080;">193</span> }

Nach dem Login kopieren

Die beiden oben genannten Schritte können zur gewünschten Verifizierung führen.

Darüber hinaus gibt es in Verify.class.php eine Methode, um zu überprüfen, ob der Bestätigungscode korrekt ist. Verwenden Sie die folgende

Übergeben Sie den Bestätigungscode, den Sie von der Schnittstelle erhalten haben, an die Code-Methode

<span style="color: #0000ff;">if</span> (<span style="color: #800080;">$code</span> -><span style="color: #000000;"> code(这是传入你页面中获取的验证码值)){
    </span><span style="color: #008000;">#</span><span style="color: #008000;">这是验证正确的操作</span>
}<span style="color: #0000ff;">else</span><span style="color: #000000;">{
    </span><span style="color: #008000;">#</span><span style="color: #008000;">验证失败的操作</span>
}

Nach dem Login kopieren

Das Obige ist meine Erfahrung bei der Erstellung des gesamten Bestätigungscodes. Ich hoffe, dass es für diejenigen hilfreich ist, die hineinklicken, um einen Blick darauf zu werfen.