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138 lines
8.1 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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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Returns an object with properties representing columns in the fetched row</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.db2-fetch-object" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">db2_fetch_object</h1>
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<p class="verinfo">(PECL ibm_db2 >= 1.0.0)</p><p class="refpurpose"><span class="refname">db2_fetch_object</span> — <span class="dc-title">
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Returns an object with properties representing columns in the fetched row
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.db2-fetch-object-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>db2_fetch_object</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$stmt</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$row_number</code><span class="initializer"> = -1</span></span>
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] ) : <span class="type">object</span></div>
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<p class="para rdfs-comment">
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Returns an object in which each property represents a column returned in
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the row fetched from a result set.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.db2-fetch-object-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">stmt</code></dt>
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<dd>
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<p class="para">
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A valid <em>stmt</em> resource containing a result set.
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</p>
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</dd>
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<dt>
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<code class="parameter">row_number</code></dt>
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<dd>
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<p class="para">
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Requests a specific 1-indexed row from the result set. Passing this
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parameter results in a PHP warning if the result set uses a
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forward-only cursor.
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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.db2-fetch-object-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 object representing a single row in the result set. The
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properties of the object map to the names of the columns in the result set.
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</p>
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<p class="para">
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The IBM DB2, Cloudscape, and Apache Derby database servers typically fold
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column names to upper-case, so the object properties will reflect that case.
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</p>
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<p class="para">
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If your SELECT statement calls a scalar function to modify the value
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of a column, the database servers return the column number as the name of
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the column in the result set. If you prefer a more descriptive column name
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and object property, you can use the AS clause to assign a name to the
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column in the result set.
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</p>
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<p class="para">
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Returns <strong><code>FALSE</code></strong> if no row was retrieved.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.db2-fetch-object-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-1259">
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<p><strong>Example #1 A <span class="function"><strong>db2_fetch_object()</strong></span> example</strong></p>
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<div class="example-contents"><p>
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The following example issues a SELECT statement with a scalar function,
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RTRIM, that removes whitespace from the end of the column. Rather than
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creating an object with the properties "BREED" and "2", we use the AS
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clause in the SELECT statement to assign the name "name" to the modified
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column. The database server folds the column names to upper-case,
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resulting in an object with the properties "BREED" and "NAME".
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</p></div>
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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 />$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">db2_connect</span><span style="color: #007700">(</span><span style="color: #0000BB">$database</span><span style="color: #007700">, </span><span style="color: #0000BB">$user</span><span style="color: #007700">, </span><span style="color: #0000BB">$password</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$sql </span><span style="color: #007700">= </span><span style="color: #DD0000">"SELECT breed, RTRIM(name) AS name<br /> FROM animals<br /> WHERE id = ?"</span><span style="color: #007700">;<br /><br />if (</span><span style="color: #0000BB">$conn</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">$stmt </span><span style="color: #007700">= </span><span style="color: #0000BB">db2_prepare</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #0000BB">$sql</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">db2_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">, array(</span><span style="color: #0000BB">0</span><span style="color: #007700">));<br /><br /> while (</span><span style="color: #0000BB">$pet </span><span style="color: #007700">= </span><span style="color: #0000BB">db2_fetch_object</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"Come here, </span><span style="color: #007700">{</span><span style="color: #0000BB">$pet</span><span style="color: #007700">-></span><span style="color: #0000BB">NAME</span><span style="color: #007700">}</span><span style="color: #DD0000">, my little </span><span style="color: #007700">{</span><span style="color: #0000BB">$pet</span><span style="color: #007700">-></span><span style="color: #0000BB">BREED</span><span style="color: #007700">}</span><span style="color: #DD0000">!"</span><span style="color: #007700">;<br /> }<br /> </span><span style="color: #0000BB">db2_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</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>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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Come here, Pook, my little cat!
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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.db2-fetch-object-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="db2_fetch_array.html" class="function" rel="rdfs-seeAlso">db2_fetch_array()</a> - Returns an array, indexed by column position, representing a row in a result set</span></li>
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<li class="member"><span class="function"><a href="db2_fetch_assoc.html" class="function" rel="rdfs-seeAlso">db2_fetch_assoc()</a> - Returns an array, indexed by column name, representing a row in a result set</span></li>
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<li class="member"><span class="function"><a href="db2_fetch_both.html" class="function" rel="rdfs-seeAlso">db2_fetch_both()</a> - Returns an array, indexed by both column name and position, representing a row in a result set</span></li>
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<li class="member"><span class="function"><a href="db2_fetch_row.html" class="function" rel="rdfs-seeAlso">db2_fetch_row()</a> - Sets the result set pointer to the next row or requested row</span></li>
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<li class="member"><span class="function"><a href="db2_result.html" class="function" rel="rdfs-seeAlso">db2_result()</a> - Returns a single column from a row in the result set</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> |