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<title>Executes a prepared Query</title>
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<div class="refnamediv">
<h1 class="refname">maxdb_stmt_execute</h1>
<h1 class="refname">maxdb_stmt::execute</h1>
<p class="verinfo">(PECL maxdb >= 1.0)</p><p class="refpurpose"><span class="refname">maxdb_stmt_execute</span> -- <span class="refname">maxdb_stmt::execute</span> — <span class="dc-title">Executes a prepared Query</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.maxdb-stmt-execute-description">
<h3 class="title">Description</h3>
<p class="para">Procedural style</p>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>maxdb_stmt_execute</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$stmt</code></span>
)</div>
<p class="para rdfs-comment">Object oriented style</p>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>maxdb_stmt::execute</strong></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">
The <span class="function"><strong>maxdb_stmt_execute()</strong></span> function executes a query that has been previously
prepared using the <span class="function"><a href="function.maxdb-prepare.html" class="function">maxdb_prepare()</a></span> function represented by the
<em><code class="parameter">stmt</code></em> resource. When executed any parameter markers which exist will
automatically be replaced with the appropiate data.
</p>
<p class="para">
If the statement is UPDATE, DELETE, or INSERT, the total number of affected rows can be
determined by using the <span class="function"><a href="function.maxdb-stmt-affected-rows.html" class="function">maxdb_stmt_affected_rows()</a></span> function. Likewise,
if the query yields a result set the <span class="function"><a href="function.maxdb-fetch.html" class="function">maxdb_fetch()</a></span> function is used.
</p>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
When using <span class="function"><strong>maxdb_stmt_execute()</strong></span>, the <span class="function"><a href="function.maxdb-fetch.html" class="function">maxdb_fetch()</a></span>
function must be used to fetch the data prior to preforming any additional queries.
</p>
</p></blockquote>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.maxdb-stmt-execute-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.maxdb-stmt-execute-examples">
<h3 class="title">Examples</h3>
<div class="example" id="example-1331">
<p><strong>Example #1 Object oriented style</strong></p>
<div class="example-contents">
<div class="phpcode"><code><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">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"CREATE TABLE temp.mycity LIKE hotel.city"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Prepare an insert statement */<br /></span><span style="color: #0000BB">$query </span><span style="color: #007700">= </span><span style="color: #DD0000">"INSERT INTO temp.mycity (zip, name, state) VALUES (?,?,?)"</span><span style="color: #007700">;<br /></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">$query</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">bind_param</span><span style="color: #007700">(</span><span style="color: #DD0000">"sss"</span><span style="color: #007700">, </span><span style="color: #0000BB">$val1</span><span style="color: #007700">, </span><span style="color: #0000BB">$val2</span><span style="color: #007700">, </span><span style="color: #0000BB">$val3</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$val1 </span><span style="color: #007700">= </span><span style="color: #DD0000">'11111'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val2 </span><span style="color: #007700">= </span><span style="color: #DD0000">'Georgetown'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val3 </span><span style="color: #007700">= </span><span style="color: #DD0000">'NY'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* Execute the statement */<br /></span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">$val1 </span><span style="color: #007700">= </span><span style="color: #DD0000">'22222'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val2 </span><span style="color: #007700">= </span><span style="color: #DD0000">'Hubbatown'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val3 </span><span style="color: #007700">= </span><span style="color: #DD0000">'CA'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* Execute the statement */<br /></span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">/* close statement */<br /></span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">/* retrieve all rows from myCity */<br /></span><span style="color: #0000BB">$query </span><span style="color: #007700">= </span><span style="color: #DD0000">"SELECT zip, name, state FROM temp.mycity"</span><span style="color: #007700">;<br />if (</span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">)) {<br /> while (</span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">$result</span><span style="color: #007700">-></span><span style="color: #0000BB">fetch_row</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s (%s,%s)\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">], </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">], </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">2</span><span style="color: #007700">]);<br /> }<br /> </span><span style="color: #FF8000">/* free result set */<br /> </span><span style="color: #0000BB">$result</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br />}<br /><br /></span><span style="color: #FF8000">/* remove table */<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"DROP TABLE temp.mycity"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">$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>
</code></div>
</div>
</div>
<div class="example" id="example-1332">
<p><strong>Example #2 Procedural style</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">"CREATE TABLE temp.mycity LIKE hotel.city"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Prepare an insert statement */<br /></span><span style="color: #0000BB">$query </span><span style="color: #007700">= </span><span style="color: #DD0000">"INSERT INTO temp.mycity (zip, name, state) VALUES (?,?,?)"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$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: #0000BB">maxdb_stmt_bind_param</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">, </span><span style="color: #DD0000">"sss"</span><span style="color: #007700">, </span><span style="color: #0000BB">$val1</span><span style="color: #007700">, </span><span style="color: #0000BB">$val2</span><span style="color: #007700">, </span><span style="color: #0000BB">$val3</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$val1 </span><span style="color: #007700">= </span><span style="color: #DD0000">'11111'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val2 </span><span style="color: #007700">= </span><span style="color: #DD0000">'Georgetown'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val3 </span><span style="color: #007700">= </span><span style="color: #DD0000">'NY'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* Execute the statement */<br /></span><span style="color: #0000BB">maxdb_stmt_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$val1 </span><span style="color: #007700">= </span><span style="color: #DD0000">'22222'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val2 </span><span style="color: #007700">= </span><span style="color: #DD0000">'Hubbatown'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$val3 </span><span style="color: #007700">= </span><span style="color: #DD0000">'CA'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* Execute the statement */<br /></span><span style="color: #0000BB">maxdb_stmt_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* close statement */<br /></span><span style="color: #0000BB">maxdb_stmt_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* retrieve all rows from myCity */<br /></span><span style="color: #0000BB">$query </span><span style="color: #007700">= </span><span style="color: #DD0000">"SELECT zip, name, state FROM temp.mycity"</span><span style="color: #007700">;<br />if (</span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #0000BB">$query</span><span style="color: #007700">)) {<br /> while (</span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_fetch_row</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s (%s,%s)\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">], </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">], </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">2</span><span style="color: #007700">]);<br /> }<br /> </span><span style="color: #FF8000">/* free result set */<br /> </span><span style="color: #0000BB">maxdb_free_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/* remove table */<br /></span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">"DROP TABLE temp.mycity"</span><span style="color: #007700">);<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>
</code></div>
</div>
</div>
<p class="para">The above example will output
something similar to:</p>
<div class="example-contents screen">
<div class="cdata"><pre>
11111 (Georgetown,NY)
22222 (Hubbatown,CA)
</pre></div>
</div>
</div>
<div class="refsect1 seealso" id="refsect1-function.maxdb-stmt-execute-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.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="function.maxdb-stmt-bind-param.html" class="function" rel="rdfs-seeAlso">maxdb_stmt_bind_param()</a> - Binds variables to a prepared statement as parameters</span></li>
</ul>
</p>
</div>
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