mysqli_stmt_bind_result

Binds variables to a prepared statement for result storage (PHP 5)
bool mysqli_stmt_bind_result ( mysqli_stmt stmt, mixed &var1 [, mixed &...] )

Procedural style:

Object oriented style (method):

mysqli_stmt {
  bool bind_result(mixed var1,
                   mixed ...);

}

mysqli_stmt_bind_result() is used to associate (bind) columns in the result set to variables. When mysqli_stmt_fetch() is called to fetch data, the MySQL client/server protocol places the data for the bound columns into the specified variables var1, ....

注意:

Note that all columns must be bound prior to calling mysqli_stmt_fetch(). Depending on column types bound variables can silently change to the corresponding PHP type.

A column can be bound or rebound at any time, even after a result set has been partially retrieved. The new binding takes effect the next time mysqli_stmt_fetch() is called.

返回值

如果成功则返回 TRUE,失败则返回 FALSE

范例

例 1336. Object oriented style

<?php
$mysqli
= new mysqli("localhost", "my_user", "my_password", "world");

if (
mysqli_connect_errno()) {
   
printf("Connect failed: %s\n", mysqli_connect_error());
   exit();
}

/* prepare statement */
if ($stmt = $mysqli->prepare("SELECT Code, Name FROM Country ORDER BY Name LIMIT 5")) {
   
$stmt->execute();

   
/* bind variables to prepared statement */
   
$stmt->bind_result($col1, $col2);

   
/* fetch values */
   
while ($stmt->fetch()) {
       
printf("%s %s\n", $col1, $col2);
   }

   
/* close statement */
   
$stmt->close();
}
/* close connection */
$mysqli->close();

?>

例 1337. Procedural style

<?php
$link
= mysqli_connect("localhost", "my_user", "my_password", "world");

/* check connection */
if (!$link) {
   
printf("Connect failed: %s\n", mysqli_connect_error());
   exit();
}

/* prepare statement */
if ($stmt = mysqli_prepare($link, "SELECT Code, Name FROM Country ORDER BY Name LIMIT 5")) {
   
mysqli_stmt_execute($stmt);

   
/* bind variables to prepared statement */
   
mysqli_stmt_bind_result($stmt, $col1, $col2);

   
/* fetch values */
   
while (mysqli_stmt_fetch($stmt)) {
       
printf("%s %s\n", $col1, $col2);
   }

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

/* close connection */
mysqli_close($link);
?>

上例将输出:

AFG Afghanistan
ALB Albania
DZA Algeria
ASM American Samoa
AND Andorra