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<title>Prepare a SQL statement for execution</title>
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<h1 class="refname">cubrid_prepare</h1>
<p class="verinfo">(PECL CUBRID >= 8.3.0)</p><p class="refpurpose"><span class="refname">cubrid_prepare</span> — <span class="dc-title">Prepare a SQL statement for execution</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.cubrid-prepare-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">resource</span> <span class="methodname"><strong>cubrid_prepare</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$conn_identifier</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$prepare_stmt</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$option</code><span class="initializer"> = 0</span></span>
] )</div>
<p class="para rdfs-comment">
The <span class="function"><strong>cubrid_prepare()</strong></span> function is a sort of API which represents SQL statements
compiled previously to a given connection handle. This pre-compiled SQL statement will be included
in the <span class="function"><strong>cubrid_prepare()</strong></span>.
</p>
<p class="para">
Accordingly, you can use this statement effectively to execute several times repeatedly or to
process long data. Only a single statement can be used and a parameter may put a question mark (?)
to appropriate area in the SQL statement. Add a parameter when you bind a value in the VALUES
clause of INSERT statement or in the WHERE clause. Note that it is allowed to bind a value to a
MARK(?) by using the <span class="function"><a href="function.cubrid-bind.html" class="function">cubrid_bind()</a></span> function only.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.cubrid-prepare-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">conn_identifier</code></em></span>
<dd>
<p class="para">Connection identifier.</p></dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">prepare_stmt</code></em></span>
<dd>
<p class="para">Prepare query.</p></dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">option</code></em></span>
<dd>
<p class="para">OID return option CUBRID_INCLUDE_OID.</p></dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.cubrid-prepare-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Request identifier, if process is successful;
</p>
<p class="para">
<strong><code>FALSE</code></strong>, if process is unsuccessful.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.cubrid-prepare-examples">
<h3 class="title">Examples</h3>
<div class="example" id="example-1052">
<p><strong>Example #1 <span class="function"><strong>cubrid_prepare()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<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 /><br /></span><span style="color: #0000BB">$sql </span><span style="color: #007700">= <<<EOD<br /></span><span style="color: #DD0000">SELECT g.event_code, e.name <br />FROM game g <br />JOIN event e ON g.event_code=e.code <br />WHERE host_year = ? AND event_code NOT IN (SELECT event_code FROM game WHERE host_year=?) GROUP BY event_code;<br /></span><span style="color: #007700">EOD;<br /><br /></span><span style="color: #0000BB">$req </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_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 /><br /></span><span style="color: #0000BB">cubrid_bind</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">, </span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">2004</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">cubrid_bind</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">, </span><span style="color: #0000BB">2</span><span style="color: #007700">, </span><span style="color: #0000BB">2000</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$row_num </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_num_rows</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"There are %d event that exits in 2004 olympic but not in 2000. For example:\n\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$row_num</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-15s %s\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Event_code"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Event_name"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"----------------------------\n"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_fetch_assoc</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-15d %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"event_code"</span><span style="color: #007700">], </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"name"</span><span style="color: #007700">]);<br /></span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_fetch_assoc</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-15d %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"event_code"</span><span style="color: #007700">], </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"name"</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>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
There are 27 event that exits in 2004 olympic but not in 2000. For example:
Event_code Event_name
----------------------------
20063 +91kg
20070 64kg
</pre></div>
</div>
</div>
</div>
<div class="refsect1 seealso" id="refsect1-function.cubrid-prepare-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.cubrid-execute.html" class="function" rel="rdfs-seeAlso">cubrid_execute()</a> - Execute a prepared SQL statement</span></li>
<li class="member"> <span class="function"><a href="function.cubrid-bind.html" class="function" rel="rdfs-seeAlso">cubrid_bind()</a> - Bind variables to a prepared statement as parameters</span></li>
</ul>
</p>
</div>
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