mirror of
https://github.com/fofolee/uTools-Manuals.git
synced 2025-06-18 05:26:57 +08:00
146 lines
12 KiB
HTML
146 lines
12 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
|
|
<title>Fetch results from a prepared statement into the bound variables</title>
|
|
</head>
|
|
<body class="docs"><div id="layout">
|
|
<div id="layout-content"><div id="function.maxdb-stmt-fetch" class="refentry">
|
|
<div class="refnamediv">
|
|
<h1 class="refname">maxdb_stmt_fetch</h1>
|
|
<h1 class="refname">maxdb_stmt::fetch</h1>
|
|
<p class="verinfo">(PECL maxdb >= 1.0)</p><p class="refpurpose"><span class="refname">maxdb_stmt_fetch</span> -- <span class="refname">maxdb_stmt::fetch</span> — <span class="dc-title">Fetch results from a prepared statement into the bound variables</span></p>
|
|
|
|
</div>
|
|
|
|
<div class="refsect1 description" id="refsect1-function.maxdb-stmt-fetch-description">
|
|
<h3 class="title">说明</h3>
|
|
<p class="para">过程化风格</p>
|
|
<div class="methodsynopsis dc-description">
|
|
<span class="methodname"><strong>maxdb_stmt_fetch</strong></span>
|
|
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$stmt</code></span>
|
|
) : <span class="type">bool</span></div>
|
|
|
|
<p class="para rdfs-comment">面向对象风格</p>
|
|
<div class="methodsynopsis dc-description">
|
|
<span class="methodname"><strong>maxdb_stmt::fetch</strong></span>
|
|
( <span class="methodparam">void</span>
|
|
) : <span class="type">bool</span></div>
|
|
|
|
<p class="para rdfs-comment">
|
|
<span class="function"><strong>maxdb_stmt_fetch()</strong></span> returns row data using the variables
|
|
bound by <span class="function"><a href="maxdb_stmt_bind_result.html" class="function">maxdb_stmt_bind_result()</a></span>.
|
|
</p>
|
|
<blockquote class="note"><p><strong class="note">Note</strong>:
|
|
<p class="para">
|
|
Note that all columns must be bound by the application before calling <span class="function"><strong>maxdb_stmt_fetch()</strong></span>.
|
|
</p>
|
|
</p></blockquote>
|
|
</div>
|
|
|
|
|
|
<div class="refsect1 returnvalues" id="refsect1-function.maxdb-stmt-fetch-returnvalues">
|
|
<h3 class="title">返回值</h3>
|
|
<table class="doctable table">
|
|
<caption><strong>Return values</strong></caption>
|
|
|
|
<thead>
|
|
<tr>
|
|
<th>Value</th>
|
|
<th>Description</th>
|
|
</tr>
|
|
|
|
</thead>
|
|
|
|
<tbody class="tbody">
|
|
<tr>
|
|
<td><strong><code>TRUE</code></strong></td>
|
|
<td>Success. Data has been fetched</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td><strong><code>FALSE</code></strong></td>
|
|
<td>Error occurred</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td><strong><code>NULL</code></strong></td>
|
|
<td>No more rows/data exists</td>
|
|
</tr>
|
|
|
|
</tbody>
|
|
|
|
</table>
|
|
|
|
</div>
|
|
|
|
|
|
<div class="refsect1 examples" id="refsect1-function.maxdb-stmt-fetch-examples">
|
|
<h3 class="title">范例</h3>
|
|
<div class="example" id="example-1423">
|
|
<p><strong>Example #1 面向对象风格</strong></p>
|
|
<div class="example-contents">
|
|
<div class="phpcode"><pre><span style="color: #000000">
|
|
<span style="color: #0000BB"><?php<br />$maxdb </span><span style="color: #007700">= new </span><span style="color: #0000BB">maxdb</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #0000BB">$query </span><span style="color: #007700">= </span><span style="color: #DD0000">"SELECT zip, name FROM hotel.city ORDER by name"</span><span style="color: #007700">;<br /><br />if (</span><span style="color: #0000BB">$stmt </span><span style="color: #007700">= </span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">prepare</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">)) {<br /><br /> </span><span style="color: #FF8000">/* execute statement */<br /> </span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /> </span><span style="color: #FF8000">/* bind result variables */<br /> </span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">bind_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$name</span><span style="color: #007700">, </span><span style="color: #0000BB">$code</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">/* fetch values */<br /> </span><span style="color: #007700">while (</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">fetch</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf </span><span style="color: #007700">(</span><span style="color: #DD0000">"%s (%s)\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$name</span><span style="color: #007700">, </span><span style="color: #0000BB">$code</span><span style="color: #007700">);<br /> }<br /><br /> </span><span style="color: #FF8000">/* close statement */<br /> </span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br />}<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?></span>
|
|
</span>
|
|
</pre></div>
|
|
</div>
|
|
|
|
</div>
|
|
<div class="example" id="example-1424">
|
|
<p><strong>Example #2 过程化风格</strong></p>
|
|
<div class="example-contents">
|
|
<div class="phpcode"><pre><span style="color: #000000">
|
|
<span style="color: #0000BB"><?php<br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #0000BB">$query </span><span style="color: #007700">= </span><span style="color: #DD0000">"SELECT zip, name FROM hotel.city ORDER by name"</span><span style="color: #007700">;<br /><br />if (</span><span style="color: #0000BB">$stmt </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_prepare</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #0000BB">$query</span><span style="color: #007700">)) {<br /><br /> </span><span style="color: #FF8000">/* execute statement */<br /> </span><span style="color: #0000BB">maxdb_stmt_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">/* bind result variables */<br /> </span><span style="color: #0000BB">maxdb_stmt_bind_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">, </span><span style="color: #0000BB">$name</span><span style="color: #007700">, </span><span style="color: #0000BB">$code</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">/* fetch values */<br /> </span><span style="color: #007700">while (</span><span style="color: #0000BB">maxdb_stmt_fetch</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">printf </span><span style="color: #007700">(</span><span style="color: #DD0000">"%s (%s)\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$name</span><span style="color: #007700">, </span><span style="color: #0000BB">$code</span><span style="color: #007700">);<br /> }<br /><br /> </span><span style="color: #FF8000">/* close statement */<br /> </span><span style="color: #0000BB">maxdb_stmt_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">maxdb_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
|
|
</span>
|
|
</pre></div>
|
|
</div>
|
|
|
|
</div>
|
|
<p class="para">以上例程的输出类似于：</p>
|
|
<div class="example-contents screen">
|
|
<div class="cdata"><pre>
|
|
12203 (Albany)
|
|
60601 (Chicago)
|
|
60615 (Chicago)
|
|
45211 (Cincinnati)
|
|
33575 (Clearwater)
|
|
75243 (Dallas)
|
|
32018 (Daytona Beach)
|
|
33441 (Deerfield Beach)
|
|
48226 (Detroit)
|
|
90029 (Hollywood)
|
|
92714 (Irvine)
|
|
90804 (Long Beach)
|
|
11788 (Long Island)
|
|
90018 (Los Angeles)
|
|
70112 (New Orleans)
|
|
10019 (New York)
|
|
10580 (New York)
|
|
92262 (Palm Springs)
|
|
97213 (Portland)
|
|
60018 (Rosemont)
|
|
95054 (Santa Clara)
|
|
20903 (Silver Spring)
|
|
20005 (Washington)
|
|
20019 (Washington)
|
|
20037 (Washington)
|
|
</pre></div>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
<div class="refsect1 seealso" id="refsect1-function.maxdb-stmt-fetch-seealso">
|
|
<h3 class="title">参见</h3>
|
|
<p class="para">
|
|
<ul class="simplelist">
|
|
<li class="member"><span class="function"><a href="maxdb_prepare.html" class="function" rel="rdfs-seeAlso">maxdb_prepare()</a> - Prepare an SQL statement for execution</span></li>
|
|
<li class="member"><span class="function"><a href="maxdb_stmt_errno.html" class="function" rel="rdfs-seeAlso">maxdb_stmt_errno()</a> - Returns the error code for the most recent statement call</span></li>
|
|
<li class="member"><span class="function"><a href="maxdb_stmt_error.html" class="function" rel="rdfs-seeAlso">maxdb_stmt_error()</a> - Returns a string description for last statement error</span></li>
|
|
<li class="member"><span class="function"><a href="maxdb_stmt_bind_result.html" class="function" rel="rdfs-seeAlso">maxdb_stmt_bind_result()</a> - Binds variables to a prepared statement for result storage</span></li>
|
|
</ul>
|
|
</p>
|
|
</div>
|
|
|
|
|
|
</div></div></div></body></html> |