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113 lines
5.5 KiB
HTML
113 lines
5.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Packs a database</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.dbase-pack" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">dbase_pack</h1>
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<p class="verinfo">(PHP 5 < 5.3.0, dbase 5, dbase 7)</p><p class="refpurpose"><span class="refname">dbase_pack</span> — <span class="dc-title">Packs a database</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.dbase-pack-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>dbase_pack</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$dbase_identifier</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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Packs the specified database by permanently deleting all records marked
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for deletion using <span class="function"><a href="dbase_delete_record.html" class="function">dbase_delete_record()</a></span>.
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Note that the file will be truncated after successful packing (contrary to
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dBASE III's PACK command).
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.dbase-pack-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">dbase_identifier</code></dt>
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<dd>
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<p class="para">
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The database link identifier, returned by <span class="function"><a href="dbase_open.html" class="function">dbase_open()</a></span>
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or <span class="function"><a href="dbase_create.html" class="function">dbase_create()</a></span>.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.dbase-pack-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 changelog" id="refsect1-function.dbase-pack-changelog">
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<h3 class="title">更新日志</h3>
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<table class="doctable informaltable">
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<thead>
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<tr>
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<th>版本</th>
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<th>说明</th>
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</tr>
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</thead>
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<tbody class="tbody">
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<tr>
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<td>dbase 7.0.0</td>
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<td>
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<code class="parameter">dbase_identifier</code> is now a <span class="type"><a href="language.types.resource.html" class="type resource">resource</a></span>
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instead of an <span class="type"><a href="language.types.integer.html" class="type int">int</a></span>.
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="refsect1 examples" id="refsect1-function.dbase-pack-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-1192">
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<p><strong>Example #1 Emptying a dBase database</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /><br /></span><span style="color: #FF8000">// open in read-write mode<br /></span><span style="color: #0000BB">$db </span><span style="color: #007700">= </span><span style="color: #0000BB">dbase_open</span><span style="color: #007700">(</span><span style="color: #DD0000">'/tmp/test.dbf'</span><span style="color: #007700">, </span><span style="color: #0000BB">2</span><span style="color: #007700">);<br /><br />if (</span><span style="color: #0000BB">$db</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">$record_numbers </span><span style="color: #007700">= </span><span style="color: #0000BB">dbase_numrecords</span><span style="color: #007700">(</span><span style="color: #0000BB">$db</span><span style="color: #007700">);<br /> for (</span><span style="color: #0000BB">$i </span><span style="color: #007700">= </span><span style="color: #0000BB">1</span><span style="color: #007700">; </span><span style="color: #0000BB">$i </span><span style="color: #007700"><= </span><span style="color: #0000BB">$record_numbers</span><span style="color: #007700">; </span><span style="color: #0000BB">$i</span><span style="color: #007700">++) {<br /> </span><span style="color: #0000BB">dbase_delete_record</span><span style="color: #007700">(</span><span style="color: #0000BB">$db</span><span style="color: #007700">, </span><span style="color: #0000BB">$i</span><span style="color: #007700">);<br /> }<br /> </span><span style="color: #FF8000">// expunge the database<br /> </span><span style="color: #0000BB">dbase_pack</span><span style="color: #007700">(</span><span style="color: #0000BB">$db</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.dbase-pack-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="dbase_delete_record.html" class="function" rel="rdfs-seeAlso">dbase_delete_record()</a> - Deletes a record from a database</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |