MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
mysqli::$info
mysqli_info
Retrieves information about the most recently executed query
Object oriented style
string mysqli->info ;
Procedural style
string mysqli_info(mysqli link);
The
mysqli_info
function returns a string providing information about the last
query executed. The nature of this string is provided below:
Table 3.9 Possible mysqli_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 |
Queries which do not fall into one of the preceding formats
are not supported. In these situations,
mysqli_info
will return an empty string.
link
Procedural style only: A link identifier returned by
mysqli_connect
or
mysqli_init
A character string representing additional information about the most recently executed query.
Example 3.53 $mysqli->info
example
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(); ?>
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 will output:
Records: 150 Duplicates: 0 Warnings: 0
mysqli_affected_rows
|
mysqli_warning_count
|
mysqli_num_rows
|