mysqli_stmt::get_result

mysqli_stmt_get_result

(PHP 5 >= 5.3.0, PHP 7)

mysqli_stmt::get_result -- mysqli_stmt_get_resultGets a result set from a prepared statement

说明

面向对象风格

mysqli_stmt::get_result ( void ) : mysqli_result

过程化风格

mysqli_stmt_get_result ( mysqli_stmt $stmt ) : mysqli_result

Call to return a result set from a prepared statement query.

参数

stmt

仅以过程化样式:由 mysqli_stmt_init() 返回的 statement 标识。

返回值

Returns a resultset for successful SELECT queries, or FALSE for other DML queries or on failure. The mysqli_errno() function can be used to distinguish between the two types of failure.

仅 MySQL 原生驱动

仅可用于 mysqlnd

范例

Example #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();
?>

Example #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 (
$row mysqli_fetch_array($resultMYSQLI_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 

参见