mysqli_info

Retrieves information about the most recently executed query (PHP 5)
string mysqli_info ( mysqli link )

Procedural style:

Object oriented style (property)

mysqli {
  string info ;
}

The mysqli_info() function returns a string providing information about the last query executed. The nature of this string is provided below:

表 160. Possible mysqli_info return values

Query typeExample result string
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:

Queries which do not fall into one of the above formats are not supported. In these situations, mysqli_info() will return an empty string.

返回值

A character string representing additional information about the most recently executed query.

范例

例 1299. Object oriented style

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

/* check connection */
if (mysqli_connect_errno()) {
   
printf("Connect failed: %s\n", mysqli_connect_error());
   exit();
}

$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);

/* close connection */
$mysqli->close();
?>

例 1300. Procedural style

<?php
$link
= mysqli_connect("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {
   
printf("Connect failed: %s\n", mysqli_connect_error());
   exit();
}

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));

/* close connection */
mysqli_close($link);
?>

上例将输出:

Records: 150  Duplicates: 0  Warnings: 0