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  <refentry id="function.mysqli-stmt-execute">
   <refnamediv>
    <refname>mysqli_stmt_execute</refname>
    <refname>stmt->execute</refname>
    <refpurpose>Executes a prepared Query</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <para>Procedural style:</para>
     <methodsynopsis>
      <type>bool</type><methodname>mysqli_stmt_execute</methodname>
      <methodparam><type>object</type><parameter>stmt</parameter></methodparam>
     </methodsynopsis>
    <para>Object oriented style (method):</para>
     <classsynopsis>
      <ooclass><classname>stmt</classname></ooclass>
      <methodsynopsis>
       <type>bool</type>
       <methodname>execute</methodname>
       <void />
      </methodsynopsis>
     </classsynopsis>
    <para>
     The <function>mysqli_stmt_execute</function> function executes a query that has been previously
     prepared using the <function>mysqli_prepare</function> function represented by the
     <parameter>stmt</parameter> object. When executed any parameter markers which exist will
     automatically be replaced with the appropiate data.
    </para>
    <para>
     If the statement is UPDATE, DELETE, or INSERT, the total number of affected rows can be
     determined by using the <function>mysqli_stmt_affected_rows</function> function. Likewise,
     if the query yields a result set the <function>mysqli_fetch</function> function is used.
    </para>
    <note>
     <para>
      When using <function>mysqli_stmt_execute</function>, the <function>mysqli_fetch</function>
      function must be used to fetch the data prior to preforming any additional queries.
     </para>
    </note>
   </refsect1>
   <refsect1>
    <title>Return values</title>
    <para>&return.success;</para>
   </refsect1>
   <refsect1>
    <title>See also</title>
    <para>
     <function>mysqli_prepare</function>
     <function>mysqli_stmt_bind_param</function>.
    </para>
   </refsect1>
   <refsect1>
    <title>Example</title>
    <example>
     <title>Object oriented style</title>
     <programlisting role="php">
<![CDATA[
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
   
/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}
   
$mysqli->query("CREATE TABLE myCity LIKE City");
 
/* Prepare an insert statement */
$query = "INSERT INTO myCity (Name, CountryCode, District) VALUES (?,?,?)";
$stmt = $mysqli->prepare($query);

$stmt->bind_param("sss", $val1, $val2, $val3);

$val1 = 'Stuttgart';
$val2 = 'DEU';
$val3 = 'Baden-Wuerttemberg';
    
/* Execute the statement */
$stmt->execute();

$val1 = 'Bordeaux';
$val2 = 'FRA';
$val3 = 'Aquitaine';
    
/* Execute the statement */
$stmt->execute();

/* close statement */
$stmt->close();

/* retrieve all rows from myCity */
$query = "SELECT Name, CountryCode, District FROM myCity";
if ($result = $mysqli->query($query)) {
    while ($row = $result->fetch_row()) {
        printf("%s (%s,%s)\n", $row[0], $row[1], $row[2]);
    }
    /* free result set */
    $result->close();
}

/* remove table */
$mysqli->query("DROP TABLE myCity");

/* close connection */    
$mysqli->close(); 
?>
]]>
    </programlisting>
    </example>
    <example>
     <title>Procedural style</title>
     <programlisting role="php">
<![CDATA[
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
   
/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}
   
mysqli_query($link, "CREATE TABLE myCity LIKE City");
 
/* Prepare an insert statement */
$query = "INSERT INTO myCity (Name, CountryCode, District) VALUES (?,?,?)";
$stmt = mysqli_prepare($link, $query);

mysqli_stmt_bind_param($stmt, "sss", $val1, $val2, $val3);

$val1 = 'Stuttgart';
$val2 = 'DEU';
$val3 = 'Baden-Wuerttemberg';
    
/* Execute the statement */
mysqli_stmt_execute($stmt);

$val1 = 'Bordeaux';
$val2 = 'FRA';
$val3 = 'Aquitaine';
    
/* Execute the statement */
mysqli_stmt_execute($stmt);

/* close statement */
mysqli_stmt_close($stmt);

/* retrieve all rows from myCity */
$query = "SELECT Name, CountryCode, District FROM myCity";
if ($result = mysqli_query($link, $query)) {
    while ($row = mysqli_fetch_row($result)) {
        printf("%s (%s,%s)\n", $row[0], $row[1], $row[2]);
    }
    /* free result set */
    mysqli_free_result($result);
}

/* remove table */
mysqli_query($link, "DROP TABLE myCity");

/* close connection */    
mysqli_close($link); 
?>
]]>
     </programlisting>
    </example>
    <para>
     The above examples would produce the following output:
    </para>
    <screen>
<![CDATA[
Stuttgart (DEU,Baden-Wuerttemberg)
Bordeaux (FRA,Aquitaine)
]]>
    </screen>
   </refsect1>
  </refentry>

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