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mysqli_info

(PHP 5 CVS only)

mysqli_info

(no version information, might be only in CVS)

mysqli->info -- Retrieves information about the most recently executed query

Description

Procedural style:

string mysqli_info ( object link)

Object oriented style (property)

class 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:

表格 1. 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: 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.

相关参考

mysqli_affected_rows(), mysqli_warning_count(), mysqli_num_rows()

Example

例子 1. 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();
?>

例子 2. 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);
?>

The above examples would produce the following output: 

Records: 150  Duplicates: 0  Warnings: 0


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mysqli_get_server_version上一级mysqli_init