mysqli_stmt_fetch
(PHP 5)
mysqli_stmt_fetch
(no version information, might be only in CVS)
stmt->fetch --
Fetch results from a prepared statement into the bound variables
Description
Procedural style:
mixed
mysqli_stmt_fetch ( mysqli_stmt stmt )
Object oriented style (method):
class
mysqli_stmt {
mixed
fetch ( void )
}
mysqli_stmt_fetch() fetch the result from a prepared
statement into the variables bound by
mysqli_stmt_bind_result().
注:
Note that all columns must be bound by the application before calling
mysqli_stmt_fetch().
返回值
表格 1. 返回值
| Value | Description |
|---|
| TRUE | Success. Data has been fetched |
| FALSE | Error occured |
| NULL | No more rows/data exists |
例
例子 1. Object oriented style
<?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();
}
$query = "SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 150,5";
if ($stmt = $mysqli->prepare($query)) {
/* execute statement */
$stmt->execute();
/* bind result variables */
$stmt->bind_result($name, $code);
/* fetch values */
while ($stmt->fetch()) {
printf ("%s (%s)\n", $name, $code);
}
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
?>
|
|
例子 2. Procedural style
<?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();
}
$query = "SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 150,5";
if ($stmt = mysqli_prepare($link, $query)) {
/* execute statement */
mysqli_stmt_execute($stmt);
/* bind result variables */
mysqli_stmt_bind_result($stmt, $name, $code);
/* fetch values */
while (mysqli_stmt_fetch($stmt)) {
printf ("%s (%s)\n", $name, $code);
}
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
?>
|
|
上例将输出：
Rockford (USA)
Tallahassee (USA)
Salinas (USA)
Santa Clarita (USA)
Springfield (USA) |