mysqli::$info

定義和用法

info / mysqli_info()函數返回有關上次執行的查詢的信息。

此函數適用於以下查詢類型：

• INSERT INTO...SELECT...
• INSERT INTO...VALUES (...),(...),(...)
• LOAD DATA INFILE ...
• ALTER TABLE ...
• UPDATE ...

實例

例子1 - 面向對像風格

返回有關上次執行的查詢的信息：

 <?php
$mysqli = new mysqli ( "localhost" , "my_user" , "my_password" , "my_db" ) ;

if ( $mysqli -> connect_errno ) {
  echo "Failed to connect to MySQL: " . $mysqli -> connect_error ;
  exit ( ) ;
}

// 執行一些查詢
$mysqli -> query ( "CREATE TABLE testPersons LIKE Persons" ) ;
$mysqli -> query ( "INSERT INTO testPersons SELECT * FROM Persons ORDER BY LastName" ) ;

echo $mysqli -> info ;

$mysqli -> close ( ) ;
?>

例子2 - 過程式風格

返回有關上次執行的查詢的信息：

 <?php
$con = mysqli_connect ( "localhost" , "my_user" , "my_password" , "my_db" ) ;

if ( mysqli_connect_errno ( ) ) {
  echo "Failed to connect to MySQL: " . mysqli_connect_error ( ) ;
  exit ( ) ;
}

// 執行一些查詢
mysqli_query ( $con , "CREATE TABLE testPersons LIKE Persons" ) ;
mysqli_query ( $con , "INSERT INTO testPersons SELECT * FROM Persons ORDER BY LastName" ) ;

echo mysqli_info ( $con ) ;

mysqli_close ( $con ) ;
?>