(PHP 5 >= 5.3.0, PHP 7)
mysqli_stmt::get_result -- mysqli_stmt_get_result — Gets a result set from a prepared statement
面向对象风格
过程化风格
Call to return a result set from a prepared statement query.
Returns false on failure. For successful queries which produce a result set, such as SELECT, SHOW, DESCRIBE or
EXPLAIN, mysqli_stmt_get_result() will return
a mysqli_result object. For other successful queries, mysqli_stmt_get_result() will
return false. The mysqli_stmt_errno() function can be
used to distinguish between the two reasons for false; due to a bug, prior to PHP 7.4.13,
mysqli_errno() had to be used for this purpose.
仅可用于 mysqlnd。
示例 #1 面向对象风格
<?php
$mysqli = new mysqli("127.0.0.1", "user", "password", "world");
if($mysqli->connect_error)
{
die("$mysqli->connect_errno: $mysqli->connect_error");
}
$query = "SELECT Name, Population, Continent FROM Country WHERE Continent=? ORDER BY Name LIMIT 1";
$stmt = $mysqli->stmt_init();
if(!$stmt->prepare($query))
{
print "Failed to prepare statement\n";
}
else
{
$stmt->bind_param("s", $continent);
$continent_array = array('Europe','Africa','Asia','North America');
foreach($continent_array as $continent)
{
$stmt->execute();
$result = $stmt->get_result();
while ($row = $result->fetch_array(MYSQLI_NUM))
{
foreach ($row as $r)
{
print "$r ";
}
print "\n";
}
}
}
$stmt->close();
$mysqli->close();
?>
示例 #2 过程化风格
<?php
$link = mysqli_connect("127.0.0.1", "user", "password", "world");
if (!$link)
{
$error = mysqli_connect_error();
$errno = mysqli_connect_errno();
print "$errno: $error\n";
exit();
}
$query = "SELECT Name, Population, Continent FROM Country WHERE Continent=? ORDER BY Name LIMIT 1";
$stmt = mysqli_stmt_init($link);
if(!mysqli_stmt_prepare($stmt, $query))
{
print "Failed to prepare statement\n";
}
else
{
mysqli_stmt_bind_param($stmt, "s", $continent);
$continent_array = array('Europe','Africa','Asia','North America');
foreach($continent_array as $continent)
{
mysqli_stmt_execute($stmt);
$result = mysqli_stmt_get_result($stmt);
while ($row = mysqli_fetch_array($result, MYSQLI_NUM))
{
foreach ($row as $r)
{
print "$r ";
}
print "\n";
}
}
}
mysqli_stmt_close($stmt);
mysqli_close($link);
?>
以上例程会输出：
Albania 3401200 Europe Algeria 31471000 Africa Afghanistan 22720000 Asia Anguilla 8000 North America