maxdb_info

maxdb::info

(PECL maxdb >= 1.0)

maxdb_info -- maxdb::infoRetrieves information about the most recently executed query

说明

过程化风格

string maxdb_info ( resource $link )

面向对象风格

string $maxdb->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 面向对象风格

<?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 过程化风格

<?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);
?>

以上例程的输出类似于:

Records: 25 Duplicates: 0 Warnings: 0

参见

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