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106 lines
9.9 KiB
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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>Seeks to the specified field offset</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.mssql-field-seek" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">mssql_field_seek</h1>
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<p class="verinfo">(PHP 4, PHP 5, PECL odbtp >= 1.1.1)</p><p class="refpurpose"><span class="refname">mssql_field_seek</span> — <span class="dc-title">Seeks to the specified field offset</span></p>
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</div>
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<div id="function.mssql-field-seek-refsynopsisdiv">
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<div class="warning"><strong class="warning">Warning</strong><p class="simpara">This function was
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<em class="emphasis">REMOVED</em> in PHP 7.0.0.</p></div>
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</div>
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<div class="refsect1 description" id="refsect1-function.mssql-field-seek-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>mssql_field_seek</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>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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Seeks to the specified field offset. If the next call to
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<span class="function"><a href="mssql_fetch_field.html" class="function">mssql_fetch_field()</a></span> won't include a field
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offset, this field would be returned.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.mssql-field-seek-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 result resource that is being evaluated. This result comes from a
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call to <span class="function"><a href="mssql_query.html" class="function">mssql_query()</a></span>.
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</p>
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</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 field offset, starts at 0.
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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.mssql-field-seek-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.mssql-field-seek-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-1759">
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<p><strong>Example #1 Using <span class="function"><strong>mssql_field_seek()</strong></span> on the example for <span class="function"><a href="mssql_fetch_field.html" class="function">mssql_fetch_field()</a></span></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 /></span><span style="color: #FF8000">// Connect to MSSQL and select the database<br /></span><span style="color: #0000BB">mssql_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'MANGO\SQLEXPRESS'</span><span style="color: #007700">, </span><span style="color: #DD0000">'sa'</span><span style="color: #007700">, </span><span style="color: #DD0000">'phpfi'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">mssql_select_db</span><span style="color: #007700">(</span><span style="color: #DD0000">'php'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Send a select query to MSSQL<br /></span><span style="color: #0000BB">$query </span><span style="color: #007700">= </span><span style="color: #0000BB">mssql_query</span><span style="color: #007700">(</span><span style="color: #DD0000">'SELECT * FROM [php].[dbo].[persons]'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Construct table<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'<h3>Table structure for \'persons\'</h3>'</span><span style="color: #007700">;<br />echo </span><span style="color: #DD0000">'<table border="1">'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// Table header<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'<thead>'</span><span style="color: #007700">;<br />echo </span><span style="color: #DD0000">'<tr>'</span><span style="color: #007700">;<br />echo </span><span style="color: #DD0000">'<td>Field name</td>'</span><span style="color: #007700">;<br />echo </span><span style="color: #DD0000">'<td>Data type</td>'</span><span style="color: #007700">;<br />echo </span><span style="color: #DD0000">'<td>Max length</td>'</span><span style="color: #007700">;<br />echo </span><span style="color: #DD0000">'</tr>'</span><span style="color: #007700">;<br />echo </span><span style="color: #DD0000">'</thead>'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// Dump all fields<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'<tbody>'</span><span style="color: #007700">;<br /><br />for (</span><span style="color: #0000BB">$i </span><span style="color: #007700">= </span><span style="color: #0000BB">0</span><span style="color: #007700">; </span><span style="color: #0000BB">$i </span><span style="color: #007700">< </span><span style="color: #0000BB">mssql_num_fields</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">); ++</span><span style="color: #0000BB">$i</span><span style="color: #007700">) {<br /> </span><span style="color: #FF8000">// Fetch the field information, notice the <br /> // field_offset parameter is not set. See <br /> // the mssql_field_seek call below<br /> </span><span style="color: #0000BB">$field </span><span style="color: #007700">= </span><span style="color: #0000BB">mssql_fetch_field</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">// Print the row<br /> </span><span style="color: #007700">echo </span><span style="color: #DD0000">'<tr>'</span><span style="color: #007700">;<br /> echo </span><span style="color: #DD0000">'<td>' </span><span style="color: #007700">. </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">name </span><span style="color: #007700">. </span><span style="color: #DD0000">'</td>'</span><span style="color: #007700">;<br /> echo </span><span style="color: #DD0000">'<td>' </span><span style="color: #007700">. </span><span style="color: #0000BB">strtoupper</span><span style="color: #007700">(</span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">type</span><span style="color: #007700">) . </span><span style="color: #DD0000">'</td>'</span><span style="color: #007700">;<br /> echo </span><span style="color: #DD0000">'<td>' </span><span style="color: #007700">. </span><span style="color: #0000BB">$field</span><span style="color: #007700">-></span><span style="color: #0000BB">max_length </span><span style="color: #007700">. </span><span style="color: #DD0000">'</td>'</span><span style="color: #007700">;<br /> echo </span><span style="color: #DD0000">'</tr>'</span><span style="color: #007700">;<br /><br /> </span><span style="color: #FF8000">// Move the internal seek pointer to the next<br /> // row in the result set<br /> </span><span style="color: #0000BB">mssql_field_seek</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">, </span><span style="color: #0000BB">$i </span><span style="color: #007700">+ </span><span style="color: #0000BB">1</span><span style="color: #007700">);<br />}<br /><br />echo </span><span style="color: #DD0000">'</tbody>'</span><span style="color: #007700">;<br />echo </span><span style="color: #DD0000">'</table>'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// Free the query result<br /></span><span style="color: #0000BB">mssql_free_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</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>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.mssql-field-seek-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="mssql_fetch_field.html" class="function" rel="rdfs-seeAlso">mssql_fetch_field()</a> - Get field information</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> |