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228 lines
13 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>Get column information from a result and return as an object</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.cubrid-fetch-field" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">cubrid_fetch_field</h1>
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<p class="verinfo">(PECL CUBRID >= 8.3.1)</p><p class="refpurpose"><span class="refname">cubrid_fetch_field</span> — <span class="dc-title">Get column information from a result and return as an object</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.cubrid-fetch-field-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>cubrid_fetch_field</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$result</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$field_offset</code><span class="initializer"> = 0</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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This function returns an object with certain properties of the specific
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column. The properties of the object are:
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</p>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">name</code></dt>
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<dd>
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<p class="para">column name</p></dd>
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<dt>
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<code class="parameter">table</code></dt>
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<dd>
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<p class="para">name of the table that the column belongs to</p></dd>
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<dt>
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<code class="parameter">def</code></dt>
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<dd>
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<p class="para">default value of the column</p></dd>
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<dt>
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<code class="parameter">max_length</code></dt>
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<dd>
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<p class="para">maximum length of the column</p></dd>
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<dt>
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<code class="parameter">not_null</code></dt>
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<dd>
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<p class="para">1 if the column cannot be NULL</p></dd>
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<dt>
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<code class="parameter">primary_key</code></dt>
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<dd>
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<p class="para">1 if the column is a primary key</p></dd>
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<dt>
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<code class="parameter">unique_key</code></dt>
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<dd>
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<p class="para">1 if the column is an unique key</p></dd>
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<dt>
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<code class="parameter">multiple_key</code></dt>
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<dd>
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<p class="para">1 if the column is a non-unique key</p></dd>
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<dt>
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<code class="parameter">numeric</code></dt>
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<dd>
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<p class="para">1 if the column is numeric</p></dd>
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<dt>
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<code class="parameter">blob</code></dt>
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<dd>
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<p class="para">1 if the column is a BLOB</p></dd>
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<dt>
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<code class="parameter">type</code></dt>
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<dd>
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<p class="para">the type of the column</p></dd>
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<dt>
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<code class="parameter">unsigned</code></dt>
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<dd>
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<p class="para">1 if the column is unsigned</p></dd>
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<dt>
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<code class="parameter">zerofill</code></dt>
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<dd>
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<p class="para">1 if the column is zero-filled</p></dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.cubrid-fetch-field-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"><code class="parameter">result</code> comes from a call to <span class="function"><a href="cubrid_execute.html" class="function">cubrid_execute()</a></span></p></dd>
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<dt>
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<code class="parameter">field_offset</code></dt>
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<dd>
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<p class="para">
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The numerical field offset. If the field offset is not specified, the
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next field (that was not yet retrieved by this function) is retrieved.
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The <code class="parameter">field_offset</code> starts at 0.
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</p></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.cubrid-fetch-field-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Object with certain properties of the specific column, when process is successful.
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</p>
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<p class="para">
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<strong><code>FALSE</code></strong> on failure.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.cubrid-fetch-field-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-1162">
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<p><strong>Example #1 <span class="function"><strong>cubrid_fetch_field()</strong></span> 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 />$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #0000BB">33000</span><span style="color: #007700">, </span><span style="color: #DD0000">"demodb"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$req </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"SELECT event_code,athlete_code,nation_code,game_date FROM game WHERE host_year=1988 and event_code=20001;"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">cubrid_fetch_row</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">cubrid_field_seek</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">, </span><span style="color: #0000BB">1</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$field </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_fetch_field</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"\n--- Field Properties ---\n"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s %s\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"name:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">name</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s %s\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"table:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">table</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s \"%s\"\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"default value:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">def</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s %d\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"max length:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">max_length</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s %d\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"not null:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">not_null</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s %d\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"primary key:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">primary_key</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s %d\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"unique key:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">unique_key</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s %d\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"multiple key:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">multiple_key</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s %d\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"numeric:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">numeric</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s %d\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"blob:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">blob</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s %s\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"type:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">type</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s %d\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"unsigned:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">unsigned</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-30s %d\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"zerofill:"</span><span style="color: #007700">, </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">zerofill</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">cubrid_close_request</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">cubrid_disconnect</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<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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array(4) {
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[0]=>
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string(5) "20001"
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[1]=>
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string(5) "16681"
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[2]=>
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string(3) "KOR"
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[3]=>
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string(9) "1988-9-30"
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}
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--- Field Properties ---
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name: athlete_code
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table: game
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default value: ""
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max length: 0
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not null: 1
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primary key: 1
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unique key: 1
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multiple key: 0
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numeric: 1
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blob: 0
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type: integer
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unsigned: 0
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zerofill: 0
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</pre></div>
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</div>
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</div>
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</div>
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</div></div></div></body></html> |