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69 lines
4.2 KiB
HTML
69 lines
4.2 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>列出 MySQL 服务器中所有的数据库</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.mysql-list-dbs" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">mysql_list_dbs</h1>
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<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">mysql_list_dbs</span> — <span class="dc-title">
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列出 MySQL 服务器中所有的数据库
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</span></p>
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</div>
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<div class="refsect1 unknown-unknown-unknown-unknown-unknown-unknown-unknown-seealsv" id="refsect1-function.mysql-list-dbs-unknown-unknown-unknown-unknown-unknown-unknown-unknown-seealsv">
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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>mysql_list_dbs</strong></span>
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([ <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link_identifier</code></span>
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] ) : <span class="type">resource</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>mysql_list_dbs()</strong></span> 将返回一个结果指针，包含了当前
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MySQL 进程中所有可用的数据库。用
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<span class="function"><a href="mysql_tablename.html" class="function">mysql_tablename()</a></span>
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函数来遍历此结果指针，或者任何使用结果表的函数，例如
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<span class="function"><a href="mysql_fetch_array.html" class="function">mysql_fetch_array()</a></span>。
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</p>
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<p class="para">
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<div class="example" id="example-2156">
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<p><strong>Example #1 <span class="function"><strong>mysql_list_dbs()</strong></span> 例子</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'localhost'</span><span style="color: #007700">, </span><span style="color: #DD0000">'mysql_user'</span><span style="color: #007700">, </span><span style="color: #DD0000">'mysql_password'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$db_list </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_list_dbs</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /><br />while (</span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_fetch_object</span><span style="color: #007700">(</span><span style="color: #0000BB">$db_list</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #0000BB">$row</span><span style="color: #007700">-></span><span style="color: #0000BB">Database </span><span style="color: #007700">. </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<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 class="example-contents"><p>
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以上例子将产生如下输出：
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</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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database1
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database2
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database3
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...
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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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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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以上代码用起来和
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<span class="function"><a href="mysql_fetch_row.html" class="function">mysql_fetch_row()</a></span>
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或类似函数一样简单。
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</p>
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</p></blockquote>
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<p class="para">
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为向下兼容仍然可以使用
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<span class="function"><strong>mysql_listdbs()</strong></span>，但反对这样做。
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</p>
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<p class="para">
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参见 <span class="function"><a href="mysql_db_name.html" class="function">mysql_db_name()</a></span>。
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</p>
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</div>
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</div></div></div></body></html> |