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191 lines
9.9 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>Executes a result-less query against a given 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.sqlite-exec" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">sqlite_exec</h1>
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<h1 class="refname">SQLiteDatabase::exec</h1>
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<p class="verinfo">(PHP 5 < 5.4.0, PECL sqlite >= 1.0.3)</p><p class="refpurpose"><span class="refname">sqlite_exec</span> -- <span class="refname">SQLiteDatabase::exec</span> — <span class="dc-title">Executes a result-less query against a given database</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.sqlite-exec-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>sqlite_exec</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$dbhandle</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$query</code></span>
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[, <span class="methodparam"><span class="type">string</span> <code class="parameter reference">&$error_msg</code></span>
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] ) : <span class="type">bool</span></div>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>sqlite_exec</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$query</code></span>
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, <span class="methodparam"><span class="type">resource</span> <code class="parameter">$dbhandle</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">面向对象风格 (method):</p>
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<div class="methodsynopsis dc-description">
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<span class="modifier">public</span> <span class="methodname"><strong>SQLiteDatabase::queryExec</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$query</code></span>
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[, <span class="methodparam"><span class="type">string</span> <code class="parameter reference">&$error_msg</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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Executes an SQL statement given by the <code class="parameter">query</code> against
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a given database handle (specified by the <code class="parameter">dbhandle</code>
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parameter).
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</p>
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<div class="warning"><strong class="warning">Warning</strong>
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<p class="simpara">
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SQLite <em class="emphasis">will</em> execute multiple queries separated by
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semicolons, so you can use it to execute a batch of SQL that you have
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loaded from a file or have embedded in a script.
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</p>
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</div>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.sqlite-exec-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">dbhandle</code></dt>
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<dd>
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<p class="para">
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The SQLite Database resource; returned from
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<span class="function"><a href="sqlite_open.html" class="function">sqlite_open()</a></span> when used procedurally. This parameter
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is not required when using the object-oriented method.
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</p>
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</dd>
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<dt>
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<code class="parameter">query</code></dt>
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<dd>
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<p class="para">
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The query to be executed.
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</p>
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<p class="para">
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Data inside the query should be <a href="sqlite_escape_string.html" class="link">properly escaped</a>.
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</p>
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</dd>
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<dt>
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<code class="parameter">error_msg</code></dt>
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<dd>
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<p class="para">
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The specified variable will be filled if an error occurs. This is
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specially important because SQL syntax errors can't be fetched using
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the <span class="function"><a href="sqlite_last_error.html" class="function">sqlite_last_error()</a></span> function.
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</p>
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</dd>
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</dl>
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">为兼容其他数据库扩展(比如 MySQL)，支持两种可替代的语法。推荐第一种格式，函数的第一个参数是<code class="parameter">dbhandle</code>。</span></p></blockquote>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.sqlite-exec-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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This function will return a boolean result; <strong><code>TRUE</code></strong> for success or <strong><code>FALSE</code></strong> for failure.
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If you need to run a query that returns rows, see <span class="function"><a href="sqlite_query.html" class="function">sqlite_query()</a></span>.
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</p>
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<p class="para">由
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<strong><code>SQLITE_ASSOC</code></strong> 与 <strong><code>SQLITE_BOTH</code></strong>
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返回的列名会依照 <a href="sqlite.configuration.html#ini.sqlite.assoc-case" class="link">sqlite.assoc_case</a>
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配置选项的值决定大小写。</p>
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</div>
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<div class="refsect1 changelog" id="refsect1-function.sqlite-exec-changelog">
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<h3 class="title">更新日志</h3>
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<p class="para">
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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>5.1.0</td>
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<td>
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Added the <code class="parameter">error_msg</code> parameter
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</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.sqlite-exec-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-2533">
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<p><strong>Example #1 Procedural example</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 />$dbhandle </span><span style="color: #007700">= </span><span style="color: #0000BB">sqlite_open</span><span style="color: #007700">(</span><span style="color: #DD0000">'mysqlitedb'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$query </span><span style="color: #007700">= </span><span style="color: #0000BB">sqlite_exec</span><span style="color: #007700">(</span><span style="color: #0000BB">$dbhandle</span><span style="color: #007700">, </span><span style="color: #DD0000">"UPDATE users SET email='jDoe@example.com' WHERE username='jDoe'"</span><span style="color: #007700">, </span><span style="color: #0000BB">$error</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$query</span><span style="color: #007700">) {<br /> exit(</span><span style="color: #DD0000">"Error in query: '</span><span style="color: #0000BB">$error</span><span style="color: #DD0000">'"</span><span style="color: #007700">);<br />} else {<br /> echo </span><span style="color: #DD0000">'Number of rows modified: '</span><span style="color: #007700">, </span><span style="color: #0000BB">sqlite_changes</span><span style="color: #007700">(</span><span style="color: #0000BB">$dbhandle</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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<p class="para">
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<div class="example" id="example-2534">
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<p><strong>Example #2 Object-oriented example</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 />$dbhandle </span><span style="color: #007700">= new </span><span style="color: #0000BB">SQLiteDatabase</span><span style="color: #007700">(</span><span style="color: #DD0000">'mysqlitedb'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$query </span><span style="color: #007700">= </span><span style="color: #0000BB">$dbhandle</span><span style="color: #007700">-></span><span style="color: #0000BB">queryExec</span><span style="color: #007700">(</span><span style="color: #DD0000">"UPDATE users SET email='jDoe@example.com' WHERE username='jDoe'"</span><span style="color: #007700">, </span><span style="color: #0000BB">$error</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$query</span><span style="color: #007700">) {<br /> exit(</span><span style="color: #DD0000">"Error in query: '</span><span style="color: #0000BB">$error</span><span style="color: #DD0000">'"</span><span style="color: #007700">);<br />} else {<br /> echo </span><span style="color: #DD0000">'Number of rows modified: '</span><span style="color: #007700">, </span><span style="color: #0000BB">$dbhandle</span><span style="color: #007700">-></span><span style="color: #0000BB">changes</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 seealso" id="refsect1-function.sqlite-exec-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="sqlite_query.html" class="function" rel="rdfs-seeAlso">sqlite_query()</a> - Executes a query against a given database and returns a result handle</span></li>
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<li class="member"><span class="function"><a href="sqlite_unbuffered_query.html" class="function" rel="rdfs-seeAlso">sqlite_unbuffered_query()</a> - Execute a query that does not prefetch and buffer all data</span></li>
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<li class="member"><span class="function"><a href="sqlite_array_query.html" class="function" rel="rdfs-seeAlso">sqlite_array_query()</a> - Execute a query against a given database and returns an array</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> |