PHP5中文手册·Retrieves information about the most recently executed query -- 追寻梦想＞编程乐园＞PHP 编程

说明

Procedural style:

string maxdb_info ( resource $link )

Object oriented style (property)

maxdb

string$info;

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

**Possible maxdb_info return values**
Query type	Example 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

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

返回值

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

范例

Example#1 Object oriented style


<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");

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

$maxdb->query("CREATE TABLE temp.t1 LIKE hotel.city");

/* INSERT INTO .. SELECT */
$maxdb->query("INSERT INTO temp.t1 SELECT * FROM hotel.city");
printf("%s\n", $maxdb->info);

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

Example#2 Procedural style


<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

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

maxdb_query($link, "CREATE TABLE temp.t1 LIKE hotel.city");

/* INSERT INTO .. SELECT */
maxdb_query($link, "INSERT INTO temp.t1 SELECT * FROM hotel.city");
printf("%s\n", maxdb_info($link));

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

The above examples would produce the following output:

Records: 25 Duplicates: 0 Warnings: 0

maxdb_info

maxdb->info

说明

返回值

范例

参见