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mysqli_stmt::get_result

mysqli_stmt_get_result

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

mysqli_stmt::get_result -- mysqli_stmt_get_resultGets a result set from a prepared statement as a mysqli_result object

说明

面向对象风格

public mysqli_stmt::get_result(): mysqli_result|false

过程化风格

mysqli_stmt_get_result(mysqli_stmt $statement): mysqli_result|false

Retrieves a result set from a prepared statement as a mysqli_result object. The data will be fetched from the MySQL server to PHP. This method should be called only for queries which produce a result set.

注意:

仅可用于 mysqlnd

注意:

This function cannot be used together with mysqli_stmt_store_result(). Both of these functions retrieve the full result set from the MySQL server.

参数

statement

仅以过程化样式:由 mysqli_stmt_init() 返回的 mysqli_stmt 对象。

返回值

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.

范例

示例 #1 面向对象风格

<?php

mysqli_report
(MYSQLI_REPORT_ERROR MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost""my_user""my_password""world");

$query "SELECT Name, Population, Continent FROM Country WHERE Continent=? ORDER BY Name LIMIT 1";

$stmt $mysqli->prepare($query);
$stmt->bind_param("s"$continent);

$continentList = array('Europe''Africa''Asia''North America');

foreach (
$continentList as $continent) {
    
$stmt->execute();
    
$result $stmt->get_result();
    while (
$row $result->fetch_array(MYSQLI_NUM)) {
        foreach (
$row as $r) {
            print 
"$r ";
        }
        print 
"\n";
    }
}

示例 #2 过程化风格

<?php

mysqli_report
(MYSQLI_REPORT_ERROR MYSQLI_REPORT_STRICT);
$link mysqli_connect("localhost""my_user""my_password""world");

$query "SELECT Name, Population, Continent FROM Country WHERE Continent=? ORDER BY Name LIMIT 1";

$stmt mysqli_prepare($link$query);
mysqli_stmt_bind_param($stmt"s"$continent);

$continentList= array('Europe''Africa''Asia''North America');

foreach (
$continentList 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";
    }
}

以上例程的输出类似于:

Albania 3401200 Europe 
Algeria 31471000 Africa 
Afghanistan 22720000 Asia 
Anguilla 8000 North America 

参见

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