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146 lines
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HTML
146 lines
9.6 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>Fetch a row of result into 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.ingres-fetch-array" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">ingres_fetch_array</h1>
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<p class="verinfo">(PHP 5 < 5.1.0, PECL ingres >= 1.0.0)</p><p class="refpurpose"><span class="refname">ingres_fetch_array</span> — <span class="dc-title">Fetch a row of result into an array</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.ingres-fetch-array-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>ingres_fetch_array</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$result</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$result_type</code></span>
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] ) : <span class="type">array</span></div>
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<p class="para rdfs-comment">
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This function is an extended version of
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<span class="function"><a href="ingres_fetch_row.html" class="function">ingres_fetch_row()</a></span>. In addition to storing
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the data in the numeric indices of the result array, it also
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stores the data in associative indices, using the field names as
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keys.
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</p>
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<p class="para">
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If two or more columns of the result have the same field names,
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the last column will take precedence. To access the another
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column or columns of the same name, you must use the numeric index of the
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column or make an alias for the column. For example:
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<div class="informalexample">
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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 /><br />$result </span><span style="color: #007700">= </span><span style="color: #0000BB">ingres_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">"select ap_place as city, ap_ccode as country from airport where ap_iatacode = 'VLL'"</span><span style="color: #007700">); <br /></span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">ingres_fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$foo </span><span style="color: #007700">= </span><span style="color: #0000BB">$result</span><span style="color: #007700">[</span><span style="color: #DD0000">"city"</span><span style="color: #007700">];<br /></span><span style="color: #0000BB">$bar </span><span style="color: #007700">= </span><span style="color: #0000BB">$result</span><span style="color: #007700">[</span><span style="color: #DD0000">"country"</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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With regard to speed, the function is identical to
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<span class="function"><a href="ingres_fetch_object.html" class="function">ingres_fetch_object()</a></span>, and almost as quick as
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<span class="function"><a href="ingres_fetch_row.html" class="function">ingres_fetch_row()</a></span> (the difference is
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insignificant).
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</p>
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<p class="para">
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By default, arrays created by <span class="function"><strong>ingres_fetch_array()</strong></span> start
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from position 1 and not 0 as with other DBMS extensions. The starting position
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can be adjusted to 0 using the configuration parameter <a href="ingres.configuration.html#ini.ingres.array-index-start" class="link">ingres.array_index_start</a>.
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<strong>Related Configurations</strong><br />
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<p class="para">
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See also the <a href="ingres.configuration.html#ini.ingres.array-index-start" class="link">ingres.array_index_start</a>, <a href="ingres.configuration.html#ini.ingres.fetch-buffer-size" class="link">ingres.fetch_buffer_size</a>
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and <a href="ingres.configuration.html#ini.ingres.utf8" class="link">ingres.utf8</a>
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directives in <a href="ingres.configuration.html" class="link">Runtime
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Configuration</a>.
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.ingres-fetch-array-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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The query result identifier
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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">
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The result type. This <code class="parameter">result_type</code> can be <strong><code>INGRES_NUM</code></strong> for
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enumerated array, <strong><code>INGRES_ASSOC</code></strong> for associative array, or
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<strong><code>INGRES_BOTH</code></strong> (default).
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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.ingres-fetch-array-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 that corresponds to the fetched row,
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or <strong><code>FALSE</code></strong> if there are no more rows
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.ingres-fetch-array-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-1304">
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<p><strong>Example #1 Fetch a row of result into an array</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 />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">ingres_connect</span><span style="color: #007700">(</span><span style="color: #0000BB">$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">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">ingres_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,</span><span style="color: #DD0000">"select * from table"</span><span style="color: #007700">);<br />while (</span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">ingres_fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"user_id"</span><span style="color: #007700">]; </span><span style="color: #FF8000">// using associative array<br /> </span><span style="color: #007700">echo </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"fullname"</span><span style="color: #007700">];<br /> echo </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">]; </span><span style="color: #FF8000">// using enumerated array<br /> </span><span style="color: #007700">echo </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">2</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.ingres-fetch-array-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="ingres_query.html" class="function" rel="rdfs-seeAlso">ingres_query()</a> - Send an SQL query to Ingres</span></li>
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<li class="member"><span class="function"><a href="ingres_num_fields.html" class="function" rel="rdfs-seeAlso">ingres_num_fields()</a> - Get the number of fields returned by the last query</span></li>
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<li class="member"><span class="function"><a href="ingres_field_name.html" class="function" rel="rdfs-seeAlso">ingres_field_name()</a> - Get the name of a field in a query result</span></li>
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<li class="member"><span class="function"><a href="ingres_fetch_assoc.html" class="function" rel="rdfs-seeAlso">ingres_fetch_assoc()</a> - Fetch a row of result into an associative array</span></li>
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<li class="member"><span class="function"><a href="ingres_fetch_object.html" class="function" rel="rdfs-seeAlso">ingres_fetch_object()</a> - Fetch a row of result into an object</span></li>
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<li class="member"><span class="function"><a href="ingres_fetch_row.html" class="function" rel="rdfs-seeAlso">ingres_fetch_row()</a> - Fetch a row of result into an enumerated 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> |