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  7. <title>URI Class &mdash; CodeIgniter 3.1.11 documentation</title>
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  81. <li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
  82. <li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
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  106. <li class="toctree-l2"><a class="reference internal" href="ftp.html">FTP Class</a></li>
  107. <li class="toctree-l2"><a class="reference internal" href="image_lib.html">Image Manipulation Class</a></li>
  108. <li class="toctree-l2"><a class="reference internal" href="input.html">Input Class</a></li>
  109. <li class="toctree-l2"><a class="reference internal" href="javascript.html">Javascript Class</a></li>
  110. <li class="toctree-l2"><a class="reference internal" href="language.html">Language Class</a></li>
  111. <li class="toctree-l2"><a class="reference internal" href="loader.html">Loader Class</a></li>
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  113. <li class="toctree-l2"><a class="reference internal" href="output.html">Output Class</a></li>
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  121. <li class="toctree-l2"><a class="reference internal" href="unit_testing.html">Unit Testing Class</a></li>
  122. <li class="toctree-l2 current"><a class="current reference internal" href="#">URI Class</a></li>
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  125. <li class="toctree-l2"><a class="reference internal" href="zip.html">Zip Encoding Class</a></li>
  126. </ul>
  127. </li>
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  129. <ul>
  130. <li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
  131. <li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
  132. <li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
  133. <li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
  134. <li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
  135. <li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
  136. <li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
  137. <li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
  138. <li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
  139. <li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
  140. <li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
  141. <li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
  142. <li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
  143. <li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
  144. <li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
  145. </ul>
  146. </li>
  147. </ul>
  148. <ul>
  149. <li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
  150. <li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
  151. <li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
  152. <li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
  153. <li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
  154. <li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
  155. <li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
  156. <li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
  157. <li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
  158. <li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
  159. <li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
  160. <li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
  161. <li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
  162. <li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
  163. <li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
  164. <li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
  165. <li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
  166. <li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
  167. <li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
  168. <li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
  169. <li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
  170. <li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
  171. </ul>
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  173. </ul>
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  293. <li class="toctree-l2 current"><a class="current reference internal" href="#">URI Class</a></li>
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  357. <li><a href="../index.html">Docs</a> &raquo;</li>
  358. <li><a href="index.html">Libraries</a> &raquo;</li>
  359. <li>URI Class</li>
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  363. <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" />
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  368. <div role="main" class="document">
  369. <div class="section" id="uri-class">
  370. <h1>URI Class<a class="headerlink" href="#uri-class" title="Permalink to this headline">¶</a></h1>
  371. <p>The URI Class provides methods that help you retrieve information from
  372. your URI strings. If you use URI routing, you can also retrieve
  373. information about the re-routed segments.</p>
  374. <div class="admonition note">
  375. <p class="first admonition-title">Note</p>
  376. <p class="last">This class is initialized automatically by the system so there
  377. is no need to do it manually.</p>
  378. </div>
  379. <div class="contents local topic" id="contents">
  380. <ul class="simple">
  381. <li><a class="reference internal" href="#class-reference" id="id1">Class Reference</a></li>
  382. </ul>
  383. </div>
  384. <div class="custom-index container"></div><div class="section" id="class-reference">
  385. <h2><a class="toc-backref" href="#id1">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2>
  386. <dl class="class">
  387. <dt id="CI_URI">
  388. <em class="property">class </em><code class="descname">CI_URI</code><a class="headerlink" href="#CI_URI" title="Permalink to this definition">¶</a></dt>
  389. <dd><dl class="method">
  390. <dt id="CI_URI::segment">
  391. <code class="descname">segment</code><span class="sig-paren">(</span><em>$n</em><span class="optional">[</span>, <em>$no_result = NULL</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::segment" title="Permalink to this definition">¶</a></dt>
  392. <dd><table class="docutils field-list" frame="void" rules="none">
  393. <col class="field-name" />
  394. <col class="field-body" />
  395. <tbody valign="top">
  396. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  397. <li><strong>$n</strong> (<em>int</em>) – Segment index number</li>
  398. <li><strong>$no_result</strong> (<em>mixed</em>) – What to return if the searched segment is not found</li>
  399. </ul>
  400. </td>
  401. </tr>
  402. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Segment value or $no_result value if not found</p>
  403. </td>
  404. </tr>
  405. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
  406. </td>
  407. </tr>
  408. </tbody>
  409. </table>
  410. <p>Permits you to retrieve a specific segment. Where n is the segment
  411. number you wish to retrieve. Segments are numbered from left to right.
  412. For example, if your full URL is this:</p>
  413. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">http</span><span class="o">://</span><span class="nx">example</span><span class="o">.</span><span class="nx">com</span><span class="o">/</span><span class="nx">index</span><span class="o">.</span><span class="nx">php</span><span class="o">/</span><span class="nx">news</span><span class="o">/</span><span class="nx">local</span><span class="o">/</span><span class="nx">metro</span><span class="o">/</span><span class="nx">crime_is_up</span>
  414. </pre></div>
  415. </div>
  416. <p>The segment numbers would be this:</p>
  417. <ol class="arabic simple">
  418. <li>news</li>
  419. <li>local</li>
  420. <li>metro</li>
  421. <li>crime_is_up</li>
  422. </ol>
  423. <p>The optional second parameter defaults to NULL and allows you to set the return value
  424. of this method when the requested URI segment is missing.
  425. For example, this would tell the method to return the number zero in the event of failure:</p>
  426. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$product_id</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">uri</span><span class="o">-&gt;</span><span class="na">segment</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">0</span><span class="p">);</span>
  427. </pre></div>
  428. </div>
  429. <p>It helps avoid having to write code like this:</p>
  430. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">uri</span><span class="o">-&gt;</span><span class="na">segment</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span> <span class="o">===</span> <span class="k">FALSE</span><span class="p">)</span>
  431. <span class="p">{</span>
  432. <span class="nv">$product_id</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
  433. <span class="p">}</span>
  434. <span class="k">else</span>
  435. <span class="p">{</span>
  436. <span class="nv">$product_id</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">uri</span><span class="o">-&gt;</span><span class="na">segment</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
  437. <span class="p">}</span>
  438. </pre></div>
  439. </div>
  440. </dd></dl>
  441. <dl class="method">
  442. <dt id="CI_URI::rsegment">
  443. <code class="descname">rsegment</code><span class="sig-paren">(</span><em>$n</em><span class="optional">[</span>, <em>$no_result = NULL</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::rsegment" title="Permalink to this definition">¶</a></dt>
  444. <dd><table class="docutils field-list" frame="void" rules="none">
  445. <col class="field-name" />
  446. <col class="field-body" />
  447. <tbody valign="top">
  448. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  449. <li><strong>$n</strong> (<em>int</em>) – Segment index number</li>
  450. <li><strong>$no_result</strong> (<em>mixed</em>) – What to return if the searched segment is not found</li>
  451. </ul>
  452. </td>
  453. </tr>
  454. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Routed segment value or $no_result value if not found</p>
  455. </td>
  456. </tr>
  457. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
  458. </td>
  459. </tr>
  460. </tbody>
  461. </table>
  462. <p>This method is identical to <code class="docutils literal"><span class="pre">segment()</span></code>, except that it lets you retrieve
  463. a specific segment from your re-routed URI in the event you are
  464. using CodeIgniter’s <a class="reference internal" href="../general/routing.html"><span class="doc">URI Routing</span></a> feature.</p>
  465. </dd></dl>
  466. <dl class="method">
  467. <dt id="CI_URI::slash_segment">
  468. <code class="descname">slash_segment</code><span class="sig-paren">(</span><em>$n</em><span class="optional">[</span>, <em>$where = 'trailing'</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::slash_segment" title="Permalink to this definition">¶</a></dt>
  469. <dd><table class="docutils field-list" frame="void" rules="none">
  470. <col class="field-name" />
  471. <col class="field-body" />
  472. <tbody valign="top">
  473. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  474. <li><strong>$n</strong> (<em>int</em>) – Segment index number</li>
  475. <li><strong>$where</strong> (<em>string</em>) – Where to add the slash (‘trailing’ or ‘leading’)</li>
  476. </ul>
  477. </td>
  478. </tr>
  479. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Segment value, prepended/suffixed with a forward slash, or a slash if not found</p>
  480. </td>
  481. </tr>
  482. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
  483. </td>
  484. </tr>
  485. </tbody>
  486. </table>
  487. <p>This method is almost identical to <code class="docutils literal"><span class="pre">segment()</span></code>, except it
  488. adds a trailing and/or leading slash based on the second parameter.
  489. If the parameter is not used, a trailing slash added. Examples:</p>
  490. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">uri</span><span class="o">-&gt;</span><span class="na">slash_segment</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
  491. <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">uri</span><span class="o">-&gt;</span><span class="na">slash_segment</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="s1">&#39;leading&#39;</span><span class="p">);</span>
  492. <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">uri</span><span class="o">-&gt;</span><span class="na">slash_segment</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="s1">&#39;both&#39;</span><span class="p">);</span>
  493. </pre></div>
  494. </div>
  495. <p>Returns:</p>
  496. <ol class="arabic simple">
  497. <li>segment/</li>
  498. <li>/segment</li>
  499. <li>/segment/</li>
  500. </ol>
  501. </dd></dl>
  502. <dl class="method">
  503. <dt id="CI_URI::slash_rsegment">
  504. <code class="descname">slash_rsegment</code><span class="sig-paren">(</span><em>$n</em><span class="optional">[</span>, <em>$where = 'trailing'</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::slash_rsegment" title="Permalink to this definition">¶</a></dt>
  505. <dd><table class="docutils field-list" frame="void" rules="none">
  506. <col class="field-name" />
  507. <col class="field-body" />
  508. <tbody valign="top">
  509. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  510. <li><strong>$n</strong> (<em>int</em>) – Segment index number</li>
  511. <li><strong>$where</strong> (<em>string</em>) – Where to add the slash (‘trailing’ or ‘leading’)</li>
  512. </ul>
  513. </td>
  514. </tr>
  515. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Routed segment value, prepended/suffixed with a forward slash, or a slash if not found</p>
  516. </td>
  517. </tr>
  518. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
  519. </td>
  520. </tr>
  521. </tbody>
  522. </table>
  523. <p>This method is identical to <code class="docutils literal"><span class="pre">slash_segment()</span></code>, except that it lets you
  524. add slashes a specific segment from your re-routed URI in the event you
  525. are using CodeIgniter’s <a class="reference internal" href="../general/routing.html"><span class="doc">URI Routing</span></a>
  526. feature.</p>
  527. </dd></dl>
  528. <dl class="method">
  529. <dt id="CI_URI::uri_to_assoc">
  530. <code class="descname">uri_to_assoc</code><span class="sig-paren">(</span><span class="optional">[</span><em>$n = 3</em><span class="optional">[</span>, <em>$default = array()</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::uri_to_assoc" title="Permalink to this definition">¶</a></dt>
  531. <dd><table class="docutils field-list" frame="void" rules="none">
  532. <col class="field-name" />
  533. <col class="field-body" />
  534. <tbody valign="top">
  535. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  536. <li><strong>$n</strong> (<em>int</em>) – Segment index number</li>
  537. <li><strong>$default</strong> (<em>array</em>) – Default values</li>
  538. </ul>
  539. </td>
  540. </tr>
  541. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Associative URI segments array</p>
  542. </td>
  543. </tr>
  544. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p>
  545. </td>
  546. </tr>
  547. </tbody>
  548. </table>
  549. <p>This method lets you turn URI segments into an associative array of
  550. key/value pairs. Consider this URI:</p>
  551. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">index</span><span class="o">.</span><span class="nx">php</span><span class="o">/</span><span class="nx">user</span><span class="o">/</span><span class="nx">search</span><span class="o">/</span><span class="nx">name</span><span class="o">/</span><span class="nx">joe</span><span class="o">/</span><span class="nx">location</span><span class="o">/</span><span class="nx">UK</span><span class="o">/</span><span class="nx">gender</span><span class="o">/</span><span class="nx">male</span>
  552. </pre></div>
  553. </div>
  554. <p>Using this method you can turn the URI into an associative array with
  555. this prototype:</p>
  556. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="p">[</span><span class="k">array</span><span class="p">]</span>
  557. <span class="p">(</span>
  558. <span class="s1">&#39;name&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;joe&#39;</span>
  559. <span class="s1">&#39;location&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;UK&#39;</span>
  560. <span class="s1">&#39;gender&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;male&#39;</span>
  561. <span class="p">)</span>
  562. </pre></div>
  563. </div>
  564. <p>The first parameter lets you set an offset, which defaults to 3 since your
  565. URI will normally contain a controller/method pair in the first and second segments.
  566. Example:</p>
  567. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$array</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">uri</span><span class="o">-&gt;</span><span class="na">uri_to_assoc</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
  568. <span class="k">echo</span> <span class="nv">$array</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">];</span>
  569. </pre></div>
  570. </div>
  571. <p>The second parameter lets you set default key names, so that the array
  572. returned will always contain expected indexes, even if missing from the URI.
  573. Example:</p>
  574. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$default</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="s1">&#39;name&#39;</span><span class="p">,</span> <span class="s1">&#39;gender&#39;</span><span class="p">,</span> <span class="s1">&#39;location&#39;</span><span class="p">,</span> <span class="s1">&#39;type&#39;</span><span class="p">,</span> <span class="s1">&#39;sort&#39;</span><span class="p">);</span>
  575. <span class="nv">$array</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">uri</span><span class="o">-&gt;</span><span class="na">uri_to_assoc</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="nv">$default</span><span class="p">);</span>
  576. </pre></div>
  577. </div>
  578. <p>If the URI does not contain a value in your default, an array index will
  579. be set to that name, with a value of NULL.</p>
  580. <p>Lastly, if a corresponding value is not found for a given key (if there
  581. is an odd number of URI segments) the value will be set to NULL.</p>
  582. </dd></dl>
  583. <dl class="method">
  584. <dt id="CI_URI::ruri_to_assoc">
  585. <code class="descname">ruri_to_assoc</code><span class="sig-paren">(</span><span class="optional">[</span><em>$n = 3</em><span class="optional">[</span>, <em>$default = array()</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::ruri_to_assoc" title="Permalink to this definition">¶</a></dt>
  586. <dd><table class="docutils field-list" frame="void" rules="none">
  587. <col class="field-name" />
  588. <col class="field-body" />
  589. <tbody valign="top">
  590. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  591. <li><strong>$n</strong> (<em>int</em>) – Segment index number</li>
  592. <li><strong>$default</strong> (<em>array</em>) – Default values</li>
  593. </ul>
  594. </td>
  595. </tr>
  596. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Associative routed URI segments array</p>
  597. </td>
  598. </tr>
  599. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p>
  600. </td>
  601. </tr>
  602. </tbody>
  603. </table>
  604. <p>This method is identical to <code class="docutils literal"><span class="pre">uri_to_assoc()</span></code>, except that it creates
  605. an associative array using the re-routed URI in the event you are using
  606. CodeIgniter’s <a class="reference internal" href="../general/routing.html"><span class="doc">URI Routing</span></a> feature.</p>
  607. </dd></dl>
  608. <dl class="method">
  609. <dt id="CI_URI::assoc_to_uri">
  610. <code class="descname">assoc_to_uri</code><span class="sig-paren">(</span><em>$array</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::assoc_to_uri" title="Permalink to this definition">¶</a></dt>
  611. <dd><table class="docutils field-list" frame="void" rules="none">
  612. <col class="field-name" />
  613. <col class="field-body" />
  614. <tbody valign="top">
  615. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
  616. <li><strong>$array</strong> (<em>array</em>) – Input array of key/value pairs</li>
  617. </ul>
  618. </td>
  619. </tr>
  620. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">URI string</p>
  621. </td>
  622. </tr>
  623. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
  624. </td>
  625. </tr>
  626. </tbody>
  627. </table>
  628. <p>Takes an associative array as input and generates a URI string from it.
  629. The array keys will be included in the string. Example:</p>
  630. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$array</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="s1">&#39;product&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;shoes&#39;</span><span class="p">,</span> <span class="s1">&#39;size&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;large&#39;</span><span class="p">,</span> <span class="s1">&#39;color&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;red&#39;</span><span class="p">);</span>
  631. <span class="nv">$str</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">uri</span><span class="o">-&gt;</span><span class="na">assoc_to_uri</span><span class="p">(</span><span class="nv">$array</span><span class="p">);</span>
  632. <span class="c1">// Produces: product/shoes/size/large/color/red</span>
  633. </pre></div>
  634. </div>
  635. </dd></dl>
  636. <dl class="method">
  637. <dt id="CI_URI::uri_string">
  638. <code class="descname">uri_string</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::uri_string" title="Permalink to this definition">¶</a></dt>
  639. <dd><table class="docutils field-list" frame="void" rules="none">
  640. <col class="field-name" />
  641. <col class="field-body" />
  642. <tbody valign="top">
  643. <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">URI string</td>
  644. </tr>
  645. <tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">string</td>
  646. </tr>
  647. </tbody>
  648. </table>
  649. <p>Returns a string with the complete URI. For example, if this is your full URL:</p>
  650. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">http</span><span class="o">://</span><span class="nx">example</span><span class="o">.</span><span class="nx">com</span><span class="o">/</span><span class="nx">index</span><span class="o">.</span><span class="nx">php</span><span class="o">/</span><span class="nx">news</span><span class="o">/</span><span class="nx">local</span><span class="o">/</span><span class="mi">345</span>
  651. </pre></div>
  652. </div>
  653. <p>The method would return this:</p>
  654. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">news</span><span class="o">/</span><span class="nx">local</span><span class="o">/</span><span class="mi">345</span>
  655. </pre></div>
  656. </div>
  657. </dd></dl>
  658. <dl class="method">
  659. <dt id="CI_URI::ruri_string">
  660. <code class="descname">ruri_string</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::ruri_string" title="Permalink to this definition">¶</a></dt>
  661. <dd><table class="docutils field-list" frame="void" rules="none">
  662. <col class="field-name" />
  663. <col class="field-body" />
  664. <tbody valign="top">
  665. <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Routed URI string</td>
  666. </tr>
  667. <tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">string</td>
  668. </tr>
  669. </tbody>
  670. </table>
  671. <p>This method is identical to <code class="docutils literal"><span class="pre">uri_string()</span></code>, except that it returns
  672. the re-routed URI in the event you are using CodeIgniter’s <a class="reference internal" href="../general/routing.html"><span class="doc">URI
  673. Routing</span></a> feature.</p>
  674. </dd></dl>
  675. <dl class="method">
  676. <dt id="CI_URI::total_segments">
  677. <code class="descname">total_segments</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::total_segments" title="Permalink to this definition">¶</a></dt>
  678. <dd><table class="docutils field-list" frame="void" rules="none">
  679. <col class="field-name" />
  680. <col class="field-body" />
  681. <tbody valign="top">
  682. <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Count of URI segments</td>
  683. </tr>
  684. <tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">int</td>
  685. </tr>
  686. </tbody>
  687. </table>
  688. <p>Returns the total number of segments.</p>
  689. </dd></dl>
  690. <dl class="method">
  691. <dt id="CI_URI::total_rsegments">
  692. <code class="descname">total_rsegments</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::total_rsegments" title="Permalink to this definition">¶</a></dt>
  693. <dd><table class="docutils field-list" frame="void" rules="none">
  694. <col class="field-name" />
  695. <col class="field-body" />
  696. <tbody valign="top">
  697. <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Count of routed URI segments</td>
  698. </tr>
  699. <tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">int</td>
  700. </tr>
  701. </tbody>
  702. </table>
  703. <p>This method is identical to <code class="docutils literal"><span class="pre">total_segments()</span></code>, except that it returns
  704. the total number of segments in your re-routed URI in the event you are
  705. using CodeIgniter’s <a class="reference internal" href="../general/routing.html"><span class="doc">URI Routing</span></a> feature.</p>
  706. </dd></dl>
  707. <dl class="method">
  708. <dt id="CI_URI::segment_array">
  709. <code class="descname">segment_array</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::segment_array" title="Permalink to this definition">¶</a></dt>
  710. <dd><table class="docutils field-list" frame="void" rules="none">
  711. <col class="field-name" />
  712. <col class="field-body" />
  713. <tbody valign="top">
  714. <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">URI segments array</td>
  715. </tr>
  716. <tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">array</td>
  717. </tr>
  718. </tbody>
  719. </table>
  720. <p>Returns an array containing the URI segments. For example:</p>
  721. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$segs</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">uri</span><span class="o">-&gt;</span><span class="na">segment_array</span><span class="p">();</span>
  722. <span class="k">foreach</span> <span class="p">(</span><span class="nv">$segs</span> <span class="k">as</span> <span class="nv">$segment</span><span class="p">)</span>
  723. <span class="p">{</span>
  724. <span class="k">echo</span> <span class="nv">$segment</span><span class="p">;</span>
  725. <span class="k">echo</span> <span class="s1">&#39;&lt;br /&gt;&#39;</span><span class="p">;</span>
  726. <span class="p">}</span>
  727. </pre></div>
  728. </div>
  729. </dd></dl>
  730. <dl class="method">
  731. <dt id="CI_URI::rsegment_array">
  732. <code class="descname">rsegment_array</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_URI::rsegment_array" title="Permalink to this definition">¶</a></dt>
  733. <dd><table class="docutils field-list" frame="void" rules="none">
  734. <col class="field-name" />
  735. <col class="field-body" />
  736. <tbody valign="top">
  737. <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Routed URI segments array</td>
  738. </tr>
  739. <tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">array</td>
  740. </tr>
  741. </tbody>
  742. </table>
  743. <p>This method is identical to <code class="docutils literal"><span class="pre">segment_array()</span></code>, except that it returns
  744. the array of segments in your re-routed URI in the event you are using
  745. CodeIgniter’s <a class="reference internal" href="../general/routing.html"><span class="doc">URI Routing</span></a> feature.</p>
  746. </dd></dl>
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