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  1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    2. 

  2. <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="utf-8" lang="utf-8">
    3. 

  3. <head>
    4. 

  4. <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    5. 

  5. <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=0" />
    6. 

  6. <title>调试你的应用程序 - CodeIgniter 中文手册|用户手册|用户指南|Wiki文档</title>
    7. 

  7. <link rel="shortcut icon" href="http://codeigniter.org.cn/user_guide/../images/design/favicon.ico" type="image/x-icon" />
    8. 

  8. <link rel="stylesheet" type="text/css" media="all" href="../userguide.css" />
    9. 

  9. <link rel="search" href="http://codeigniter.org.cn/user_guide/../CodeIgniterSearch.xml" type="application/opensearchdescription+xml" title="CodeIgniter 搜索"/>
    10. 

  10. <link rel="canonical" href="http://codeigniter.org.cn/user_guide/general/profiling.html" />
    11. 

  11. <script type="text/javascript" src="../nav/mootools.js-ver=20130324.js"></script>
    12. 

  12. <script type="text/javascript" src="../nav/mootools-more.js-ver=20130324.js"></script>
    13. 

  13. <script type="text/javascript" src="../nav/nav.js-ver=20130324.js"></script>
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  14. <script type="text/javascript" src="../nav/user_guide_menu.js-ver=20130324.js"></script>
    15. 

  15. <meta name="robots" content="all" />
    16. 

  16. <meta name="author" content="ExpressionEngine Dev Team" />
    17. 

  17. <meta name="description" content="CodeIgniter 中文手册, CodeIgniter 用户指南, CodeIgniter User Guide, Wiki 文档" />
    18. 

  18. </head>
    19. 

  19. <body>
    20. 

  20. <!-- START NAVIGATION -->
    21. 

  21. <div id="nav">
    22. 

  22.   <div id="nav_inner">
    23. 

  23.     <script type="text/javascript">create_menu('../');</script>
    24. 

  24.   </div>
    25. 

  25. </div>
    26. 

  26. <script type="text/javascript">_setNavigation();</script>
    27. 

  27. <div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="切换目录" alt="切换目录" /></a></div>
    28. 

  28. <div id="masthead" class="clearfix">
    29. 

  29.     <div class="topbar-hd"><h1>CodeIgniter 用户指南 版本 2.2.0</h1></div>
    30. 

  30. <div class="topbar-tip">编辑文档、查看近期更改请 <a href="#">登录</a> 或 <a href="#">注册</a> 　<a href="#">找回密码</a></div>      <div id="breadcrumb_right"><a href="../toc.html">目录页</a></div>
    31. 

  31. </div>
    32. 

  32. <!-- END NAVIGATION -->
    33. 

  33. <!-- START BREADCRUMB -->
    34. 

  34. <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
    35. 

  35.   <tr>
    36. 

  36.     <td id="breadcrumb">
    37. 

  37.         <a href="#" target="_blank">CodeIgniter 中国首页</a>&nbsp;&#8250;&nbsp;
    38. 

  38. <a href="../index.html">用户指南首页</a>&nbsp;&#8250;&nbsp;调试你的应用程序    </td>
    39. 

  39.     <td id="searchbox">
    40. 

  40.         <form method="get" action="http://www.google.com.hk/search" target="google_window">
    41. 

  41.         <input type="hidden" name="client" value="pub-0176846097796333"></input>
    42. 

  42.         <input type="hidden" name="forid" value="1"></input>
    43. 

  43.         <input type="hidden" name="ie" value="UTF-8"></input>
    44. 

  44.         <input type="hidden" name="oe" value="UTF-8"></input>
    45. 

  45.         <input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.org.cn/user_guide/" />
    46. 

  46.         搜索用户指南&nbsp;
    47. 

  47.         <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" />
    48. 

  48.         &nbsp;
    49. 

  49.         <input type="submit" class="submit" name="sa" value="Go" />
    50. 

  50.       </form>
    51. 

  51.     </td>
    52. 

  52.   </tr>
    53. 

  53. </table>
    54. 

  54. <!-- END BREADCRUMB -->
    55. 

  55. <div style="clear:both;text-align:right;padding: 6px 40px 0 0;">
    56. 

  56. <a href="#" target="_blank">查看原文</a>
    57. 

  57. </div>
    58. 

  58. <!--<br clear="all" />--><!-- START CONTENT -->
    59. 

  59. <div id="content">
    60. 

  60. <h1>调试你的应用程序</h1>
    61. 

  61. 

  62. <p>该分析器将在页面下方显示基准测试结果，运行过的 SQL 语句，以及 $_POST 数据。这些信息有助于开发过程中的调试和优化。</p>
    63. 

  63. 

  64. 

  65. <h2>初始化类</h2>
    66. 

  66. 

  67. <p class="important"><strong>注意:</strong>&nbsp; 此分析器<kbd>无须</kbd>手动初始化.如果已按照下面的方式激活,他将被<a href="../libraries/output.html">输出类</a>自动装载。</p>
    68. 

  68. 

  69. <h2>激活分析器</h2>
    70. 

  70. 

  71. <p>在<a href="controllers.html">控制器</a>中设置以下方法以激活该分析器</p>
    72. 

  72. <code>$this-&gt;output-&gt;enable_profiler(TRUE);</code>
    73. 

  73. 

  74. <p>分析器激活后将产生一个报告并插入您的页面底部</p>
    75. 

  75. 

  76. <p>使用以下方法禁用该分析器:</p>
    77. 

  77. <code>$this-&gt;output-&gt;enable_profiler(FALSE);</code>
    78. 

  78. 

  79. <h2>设定基准点</h2>
    80. 

  80. 

  81. <p>为了让该分析器编译和显示你的测试数据，你必须使用特定的语法命名基准点。</p>
    82. 

  82. 

  83. <p>请在<a href="../libraries/benchmark.html">基准测试类</a>部分阅读关于设置基准点的资料。</p>
    84. 

  84. 

  85. <h2>启用和禁用分析数据中的字段</h2>
    86. 

  86. 

  87. <p>分析数据中的每个字段可通过设置相应的控制变量<var>TRUE</var> or <var>FALSE</var>来启用和禁用. 其中的一个方法是：你可以在<dfn>application/config/profiler.php</dfn> 配置文件里设置整个程序的全局默认值.</p>
    88. 

  88. 

  89.   <code>$config['config']&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;= FALSE;<br />
    90. 

  90.   $config['queries']&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;= FALSE;<br /></code>
    91. 

  91. 

  92.   <p>另一种方法是：你可以在控制器中通过调用<kbd>set_profiler_sections()</kbd> 来覆盖全局设置和默认设置，详细可见： <a href="../libraries/output.html">Output class</a>:</p>
    93. 

  93. 

  94.   <code>$sections = array(<br />
    95. 

  95.   &nbsp;&nbsp;&nbsp;&nbsp;'config' &nbsp;=> TRUE,<br />
    96. 

  96.   &nbsp;&nbsp;&nbsp;&nbsp;'queries' => TRUE<br />
    97. 

  97.   &nbsp;&nbsp;&nbsp;&nbsp;);<br />
    98. 

  98.   <br />
    99. 

  99.   $this-&gt;output-&gt;set_profiler_sections($sections);</code>
    100. 

  100. 

  101.   <p>下表列出了可用的分析器数据字段和用来访问这些字段的key。</p>
    102. 

  102. 

  103.   <table cellpadding="0" cellspacing="1" border="0" style="width:100%" class="tableborder">
    104. 

  104.     <tr>
    105. 

  105.     <th>Key</th>
    106. 

  106.     <th>Description</th>
    107. 

  107.     <th>Default</th>
    108. 

  108.     </tr>
    109. 

  109.     <tr>
    110. 

  110.     <td class="td"><strong>benchmarks</strong></td>
    111. 

  111.     <td class="td">在各个计时点花费的时间以及总时间</td>
    112. 

  112.     <td class="td">TRUE</td>
    113. 

  113.     </tr>
    114. 

  114.     <tr>
    115. 

  115.     <td class="td"><strong>config</strong></td>
    116. 

  116.     <td class="td">CodeIgniter 配置变量</td>
    117. 

  117.     <td class="td">TRUE</td>
    118. 

  118.     </tr>
    119. 

  119.     <tr>
    120. 

  120.     <td class="td"><strong>controller_info</strong></td>
    121. 

  121.     <td class="td">被调用的method及其所属的控制器类</td>
    122. 

  122.     <td class="td">TRUE</td>
    123. 

  123.     </tr>
    124. 

  124.     <tr>
    125. 

  125.     <td class="td"><strong>get</strong></td>
    126. 

  126.     <td class="td">在request中传递的所有GET参数</td>
    127. 

  127.     <td class="td">TRUE</td>
    128. 

  128.     </tr>
    129. 

  129.     <tr>
    130. 

  130.     <td class="td"><strong>http_headers</strong></td>
    131. 

  131.     <td class="td">本次请求的 HTTP 头</td>
    132. 

  132.     <td class="td">TRUE</td>
    133. 

  133.     </tr>
    134. 

  134.     <tr>
    135. 

  135.     <td class="td"><strong>memory_usage</strong></td>
    136. 

  136.     <td class="td">本次请求消耗的内存（byte为单位）</td>
    137. 

  137.     <td class="td">TRUE</td>
    138. 

  138.     </tr>
    139. 

  139.     <tr>
    140. 

  140.     <td class="td"><strong>post</strong></td>
    141. 

  141.     <td class="td">在request中传递的所有POST参数</td>
    142. 

  142.     <td class="td">TRUE</td>
    143. 

  143.     </tr>
    144. 

  144.     <tr>
    145. 

  145.     <td class="td"><strong>queries</strong></td>
    146. 

  146.     <td class="td">列出执行的数据库操作语句及其消耗的时间</td>
    147. 

  147.     <td class="td">TRUE</td>
    148. 

  148.     </tr>
    149. 

  149.     <tr>
    150. 

  150.     <td class="td"><strong>uri_string</strong></td>
    151. 

  151.     <td class="td">本次请求的URI</td>
    152. 

  152.     <td class="td">TRUE</td>
    153. 

  153.     </tr>
    154. 

  154.     <tr>
    155. 

  155.       <td class="td"><strong>query_toggle_count</strong></td>
    156. 

  156.       <td class="td">指定显示多少个数据库查询语句，剩下的则默认折叠起来。</td>
    157. 

  157.       <td class="td">25</td>
    158. 

  158.     </tr>
    159. 

  159.   </table><p>&nbsp;</p>
    160. 

  160. <div id="Contributors">
    161. 

  161. 翻译贡献者:
    162. 

  162. amos, chouqiuqiu, Hex, teamoustar</div>
    163. 

  163. <div id="DocDate">
    164. 

  164. 最后修改: 2013-03-23 03:19:52</div>
    165. 

  165. </div>
    166. 

  166. <!-- END CONTENT -->
    167. 

  167. <div id="footer">
    168. 

  168.   <p>
    169. 

  169. 上一个主题:&nbsp;&nbsp;<a href="caching.html">缓存</a>&nbsp;&nbsp;&middot;&nbsp;&nbsp;<a href="#top">页首</a>
    170. 

  170. &nbsp;&middot;&nbsp;&nbsp;<a href="../index.html">用户指南首页</a>&nbsp;&nbsp;&middot;&nbsp;&nbsp;下一个主题:&nbsp;&nbsp;<a href="managing_apps.html">管理应用程序</a>  </p>
    171. 

  171.   <p><a href="#">CodeIgniter</a> &nbsp;&middot;&nbsp; 版权所有 &#169; 2006-2013 &nbsp;&middot;&nbsp; <a href="#">Ellislab, Inc.</a></p>
    172. 

  172.   <p>中文化: <a href="#">CodeIgniter 中国</a> &nbsp;&middot;&nbsp; 制作: Hex &nbsp;&middot;&nbsp; 版本: 1.30 &nbsp;&middot;&nbsp; 鸣谢: 子非鱼</p>
    173. 

  173. </div>
    174. 

  174. </body>
    175. 

  175. </html>
    176.