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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>Executes a prepared Query</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.maxdb-stmt-execute" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">maxdb_stmt_execute</h1>
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<h1 class="refname">maxdb_stmt::execute</h1>
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<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>
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</div>
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<div class="refsect1 description" id="refsect1-function.maxdb-stmt-execute-description">
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<h3 class="title">说明</h3>
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<p class="para">过程化风格</p>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>maxdb_stmt_execute</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$stmt</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">面向对象风格</p>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>maxdb_stmt::execute</strong></span>
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( <span class="methodparam">void</span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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The <span class="function"><strong>maxdb_stmt_execute()</strong></span> function executes a query that has been previously
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prepared using the <span class="function"><a href="maxdb_prepare.html" class="function">maxdb_prepare()</a></span> function represented by the
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<code class="parameter">stmt</code> resource. When executed any parameter markers which exist will
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automatically be replaced with the appropiate data.
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</p>
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<p class="para">
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If the statement is UPDATE, DELETE, or INSERT, the total number of affected rows can be
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determined by using the <span class="function"><a href="maxdb_stmt_affected_rows.html" class="function">maxdb_stmt_affected_rows()</a></span> function. Likewise,
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if the query yields a result set the <span class="function"><a href="maxdb_fetch.html" class="function">maxdb_fetch()</a></span> function is used.
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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When using <span class="function"><strong>maxdb_stmt_execute()</strong></span>, the <span class="function"><a href="maxdb_fetch.html" class="function">maxdb_fetch()</a></span>
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function must be used to fetch the data prior to preforming any additional queries.
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.maxdb-stmt-execute-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.maxdb-stmt-execute-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-1421">
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<p><strong>Example #1 面向对象风格</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 />$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>
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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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<div class="example" id="example-1422">
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<p><strong>Example #2 过程化风格</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 />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$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>
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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 class="para">以上例程的输出类似于：</p>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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11111 (Georgetown,NY)
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22222 (Hubbatown,CA)
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</pre></div>
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</div>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.maxdb-stmt-execute-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="maxdb_prepare.html" class="function" rel="rdfs-seeAlso">maxdb_prepare()</a> - Prepare an SQL statement for execution</span></li>
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<li class="member"><span class="function"><a href="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>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |