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134 lines
6.7 KiB
HTML
134 lines
6.7 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>取得结果数据</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-db-name" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">mysql_db_name</h1>
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<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">mysql_db_name</span> — <span class="dc-title">取得结果数据</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.mysql-db-name-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>mysql_db_name</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$result</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$row</code></span>
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[, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$field</code></span>
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] ) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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取得 <span class="function"><a href="mysql_list_dbs.html" class="function">mysql_list_dbs()</a></span> 调用所返回的数据库名。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.mysql-db-name-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">result</code></dt>
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<dd>
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<p class="para">
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<span class="function"><a href="mysql_list_dbs.html" class="function">mysql_list_dbs()</a></span> 调用所返回的结果指针。
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</p>
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</dd>
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<dt>
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<code class="parameter">row</code></dt>
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<dd>
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<p class="para">
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结果集中的行号。
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</p>
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</dd>
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<dt>
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<code class="parameter">field</code></dt>
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<dd>
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<p class="para">
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字段名。
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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.mysql-db-name-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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如果成功则返回数据库名，失败返回 <strong><code>FALSE</code></strong>。如果返回了 <strong><code>FALSE</code></strong>，用
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<span class="function"><a href="mysql_error.html" class="function">mysql_error()</a></span> 来判断错误的种类。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.mysql-db-name-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-2125">
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<p><strong>Example #1 <span class="function"><strong>mysql_db_name()</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 />error_reporting</span><span style="color: #007700">(</span><span style="color: #0000BB">E_ALL</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$link </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'dbhost'</span><span style="color: #007700">, </span><span style="color: #DD0000">'username'</span><span style="color: #007700">, </span><span style="color: #DD0000">'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 /></span><span style="color: #0000BB">$i </span><span style="color: #007700">= </span><span style="color: #0000BB">0</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$cnt </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_num_rows</span><span style="color: #007700">(</span><span style="color: #0000BB">$db_list</span><span style="color: #007700">);<br />while (</span><span style="color: #0000BB">$i </span><span style="color: #007700">< </span><span style="color: #0000BB">$cnt</span><span style="color: #007700">) {<br /> echo </span><span style="color: #0000BB">mysql_db_name</span><span style="color: #007700">(</span><span style="color: #0000BB">$db_list</span><span style="color: #007700">, </span><span style="color: #0000BB">$i</span><span style="color: #007700">) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">$i</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>
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</p>
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</div>
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<div class="refsect1 notes" id="refsect1-function.mysql-db-name-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">本扩展自 PHP 5.5.0
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起已废弃，并在自 PHP 7.0.0 开始被移除。应使用 <a href="book.mysqli.html" class="link">MySQLi</a>
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或 <a href="ref.pdo_mysql.html" class="link">PDO_MySQL</a> 扩展来替换之。参见
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<a href="mysqlinfo.api.choosing.html" class="link">MySQL：选择 API</a> 指南以及<a href="faq.databases.html#faq.databases.mysql.deprecated" class="link">相关 FAQ</a> 来获取更多信息。用以替代本函数的有：</p>
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<p class="para">
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<ul class="simplelist">
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<li class="member">Query: <em>SELECT DATABASE()</em></li>
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</ul>
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</p>
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</p></blockquote>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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为了向下兼容，可以使用下列已废弃的别名：
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<span class="function"><strong>mysql_dbname()</strong></span>
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.mysql-db-name-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="mysql_list_dbs.html" class="function" rel="rdfs-seeAlso">mysql_list_dbs()</a> - 列出 MySQL 服务器中所有的数据库</span></li>
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<li class="member"><span class="function"><a href="mysql_tablename.html" class="function" rel="rdfs-seeAlso">mysql_tablename()</a> - 取得表名</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> |