array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'mysqli.info.php', 1 => 'mysqli::$info', 2 => '返回最近执行的 SQL 语句的信息', ), 'up' => array ( 0 => 'class.mysqli.php', 1 => 'mysqli', ), 'prev' => array ( 0 => 'mysqli.get-warnings.php', 1 => 'mysqli::get_warnings', ), 'next' => array ( 0 => 'mysqli.init.php', 1 => 'mysqli::init', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'zh', 'path' => 'reference/mysqli/mysqli/info.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

mysqli::$info

mysqli_info

(PHP 5, PHP 7, PHP 8)

mysqli::$info -- mysqli_info — 返回最近执行的 SQL 语句的信息

说明

面向对象风格

?string $mysqli->info;

过程化风格

mysqli_info(mysqli $mysql): ?string

mysqli_info() 函数返回一个包含 最近执行的 SQL 语句信息的字符串。 下面有一些参考样例：

mysqli_info 可能的返回值
SQL 语句类型 返回结果字符串示例
INSERT INTO...SELECT... Records: 100 Duplicates: 0 Warnings: 0
INSERT INTO...VALUES (...),(...),(...) Records: 3 Duplicates: 0 Warnings: 0
LOAD DATA INFILE ... Records: 1 Deleted: 0 Skipped: 0 Warnings: 0
ALTER TABLE ... Records: 3 Duplicates: 0 Warnings: 0
UPDATE ... Rows matched: 40 Changed: 40 Warnings: 0

注意:

如果所执行的 SQL 语句不是上面列出来的这几种类型的， mysqli_info() 函数会返回一个空字符串。

参数

mysql

仅以过程化样式：由 mysqli_connect() 或 mysqli_init() 返回的 mysqli 对象。

返回值

最近执行的 SQL 语句的相关信息。

示例

示例 #1 $mysqli->info 示例

面向对象风格

<?php

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

$mysqli->query("CREATE TEMPORARY TABLE t1 LIKE City");

/* INSERT INTO ... SELECT */
$mysqli->query("INSERT INTO t1 SELECT * FROM City ORDER BY ID LIMIT 150");
printf("%s\n", $mysqli->info);

过程化风格

<?php

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

mysqli_query($link, "CREATE TEMPORARY TABLE t1 LIKE City");

/* INSERT INTO ... SELECT */
mysqli_query($link, "INSERT INTO t1 SELECT * FROM City ORDER BY ID LIMIT 150");
printf("%s\n", mysqli_info($link));

以上示例会输出：

Records: 150  Duplicates: 0  Warnings: 0

参见