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<!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>Execute a query against a given database and returns an array</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-array-query" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">sqlite_array_query</h1>
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<h1 class="refname">SQLiteDatabase::arrayQuery</h1>
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<p class="verinfo">(PHP 5 < 5.4.0, PECL sqlite >= 1.0.0)</p><p class="refpurpose"><span class="refname">sqlite_array_query</span> -- <span class="refname">SQLiteDatabase::arrayQuery</span> — <span class="dc-title">Execute a query against a given database and returns an array</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.sqlite-array-query-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_array_query</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">int</span> <code class="parameter">$result_type</code><span class="initializer"> = SQLITE_BOTH</span></span>
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[, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$decode_binary</code><span class="initializer"> = <strong><code>TRUE</code></strong></span></span>
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]] ) : <span class="type">array</span></div>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>sqlite_array_query</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="methodparam"><span class="type">int</span> <code class="parameter">$result_type</code><span class="initializer"> = SQLITE_BOTH</span></span>
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[, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$decode_binary</code><span class="initializer"> = <strong><code>TRUE</code></strong></span></span>
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]] ) : <span class="type">array</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::arrayQuery</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$query</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$result_type</code><span class="initializer"> = SQLITE_BOTH</span></span>
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[, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$decode_binary</code><span class="initializer"> = <strong><code>TRUE</code></strong></span></span>
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]] ) : <span class="type">array</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>sqlite_array_query()</strong></span> executes the given query and returns
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an array of the entire result set. It is similar to calling
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<span class="function"><a href="sqlite_query.html" class="function">sqlite_query()</a></span> and then <span class="function"><a href="sqlite_fetch_array.html" class="function">sqlite_fetch_array()</a></span>
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for each row in the result set. <span class="function"><strong>sqlite_array_query()</strong></span> is
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significantly faster than the aforementioned.
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</p>
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<div class="tip"><strong class="tip">Tip</strong>
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<p class="para">
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<span class="function"><strong>sqlite_array_query()</strong></span> is best suited to queries
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returning 45 rows or less. If you have more data than that, it is
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recommended that you write your scripts to use
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<span class="function"><a href="sqlite_unbuffered_query.html" class="function">sqlite_unbuffered_query()</a></span> instead for more optimal
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performance.
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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-array-query-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">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">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 <span class="function"><a href="sqlite_open.html" class="function">sqlite_open()</a></span>
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when used procedurally. This parameter is not required
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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">result_type</code></dt>
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<dd>
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<p class="para">可选的 <code class="parameter">result_type</code>
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参数接受常量，且决定返回的数组如何被索引。使用
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<strong><code>SQLITE_ASSOC</code></strong> 会仅返回关联索引（已命名字段），而
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<strong><code>SQLITE_NUM</code></strong> 会仅返回数值索引。<strong><code>SQLITE_BOTH</code></strong>
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会同时返回关联和数值索引。<strong><code>SQLITE_BOTH</code></strong> 是此函数的默认值。</p>
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</dd>
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<dt>
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<code class="parameter">decode_binary</code></dt>
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<dd>
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<p class="para">当
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<code class="parameter">decode_binary</code> 参数设置为 <strong><code>TRUE</code></strong>（默认值）时，PHP 会解码那些由
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<span class="function"><a href="sqlite_escape_string.html" class="function">sqlite_escape_string()</a></span>
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编码后的二进制数据。通常应保留此值为其默认值，除非要与其他使用 SQLlite 的应用程序建立的数据交互。</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-array-query-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns an array of the entire result set; <strong><code>FALSE</code></strong> otherwise.
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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 examples" id="refsect1-function.sqlite-array-query-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-2523">
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<p><strong>Example #1 过程化风格</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">'sqlitedb'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">sqlite_array_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$dbhandle</span><span style="color: #007700">, </span><span style="color: #DD0000">'SELECT name, email FROM users LIMIT 25'</span><span style="color: #007700">, </span><span style="color: #0000BB">SQLITE_ASSOC</span><span style="color: #007700">);<br />foreach (</span><span style="color: #0000BB">$result </span><span style="color: #007700">as </span><span style="color: #0000BB">$entry</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">'Name: ' </span><span style="color: #007700">. </span><span style="color: #0000BB">$entry</span><span style="color: #007700">[</span><span style="color: #DD0000">'name'</span><span style="color: #007700">] . </span><span style="color: #DD0000">' E-mail: ' </span><span style="color: #007700">. </span><span style="color: #0000BB">$entry</span><span style="color: #007700">[</span><span style="color: #DD0000">'email'</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-2524">
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<p><strong>Example #2 Object-oriented style</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 />$dbhandle </span><span style="color: #007700">= new </span><span style="color: #0000BB">SQLiteDatabase</span><span style="color: #007700">(</span><span style="color: #DD0000">'sqlitedb'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">$dbhandle</span><span style="color: #007700">-></span><span style="color: #0000BB">arrayQuery</span><span style="color: #007700">(</span><span style="color: #DD0000">'SELECT name, email FROM users LIMIT 25'</span><span style="color: #007700">, </span><span style="color: #0000BB">SQLITE_ASSOC</span><span style="color: #007700">);<br />foreach (</span><span style="color: #0000BB">$result </span><span style="color: #007700">as </span><span style="color: #0000BB">$entry</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">'Name: ' </span><span style="color: #007700">. </span><span style="color: #0000BB">$entry</span><span style="color: #007700">[</span><span style="color: #DD0000">'name'</span><span style="color: #007700">] . </span><span style="color: #DD0000">' E-mail: ' </span><span style="color: #007700">. </span><span style="color: #0000BB">$entry</span><span style="color: #007700">[</span><span style="color: #DD0000">'email'</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-array-query-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_fetch_array.html" class="function" rel="rdfs-seeAlso">sqlite_fetch_array()</a> - Fetches the next row from a result set as an array</span></li>
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<li class="member"><span class="function"><a href="sqlite_fetch_string.html" class="function" rel="rdfs-seeAlso">sqlite_fetch_string()</a> - 别名 sqlite_fetch_single</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> |