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mysqli::$infomysqli_info
107
3.9.29 mysqli::$infomysqli_info
Copyright 1997-2014 the PHP Documentation Group.
• mysqli::$info
mysqli_info
Retrieves information about the most recently executed query
Description
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
Note
Queries which do not fall into one of the preceding formats are not supported. In
these situations, mysqli_info will return an empty string.
Parameters
link
Procedural style only: A link identifier returned by mysqli_connect or
mysqli_init
Return Values
A character string representing additional information about the most recently executed query.
Examples
Example 3.56 $mysqli->info example
Object oriented style
<?php
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mysqli::initmysqli_init
108
$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($link);
?>
The above examples will output:
Records: 150  Duplicates: 0  Warnings: 0
See Also
mysqli_affected_rows
mysqli_warning_count
mysqli_num_rows
3.9.30 mysqli::initmysqli_init
Copyright 1997-2014 the PHP Documentation Group.
• mysqli::init
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mysqli::$insert_idmysqli_insert_id
109
mysqli_init
Initializes MySQLi and returns a resource for use with mysqli_real_connect()
Description
Object oriented style
mysqli mysqli::init();
Procedural style
mysqli mysqli_init();
Allocates or initializes a MYSQL object suitable for mysqli_options and mysqli_real_connect.
Note
Any subsequent calls to any mysqli function (except mysqli_options) will fail
until mysqli_real_connect was called.
Return Values
Returns an object.
Examples
See mysqli_real_connect.
See Also
mysqli_options
mysqli_close
mysqli_real_connect
mysqli_connect
3.9.31 mysqli::$insert_idmysqli_insert_id
Copyright 1997-2014 the PHP Documentation Group.
• mysqli::$insert_id
mysqli_insert_id
Returns the auto generated id used in the last query
Description
Object oriented style
mixed 
mysqli->insert_id ;
Procedural style
mixed mysqli_insert_id(
mysqli link);
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mysqli::$insert_idmysqli_insert_id
110
The mysqli_insert_id function returns the ID generated by a query on a table with a column having the
AUTO_INCREMENT attribute. If the last query wasn't an INSERT or UPDATE statement or if the modified
table does not have a column with the AUTO_INCREMENT attribute, this function will return zero.
Note
Performing an INSERT or UPDATE statement using the LAST_INSERT_ID()
function will also modify the value returned by the mysqli_insert_id function.
Parameters
link
Procedural style only: A link identifier returned by mysqli_connect or
mysqli_init
Return Values
The value of the AUTO_INCREMENT field that was updated by the previous query. Returns zero if there was
no previous query on the connection or if the query did not update an AUTO_INCREMENT value.
Note
If the number is greater than maximal int value, mysqli_insert_id will return a
string.
Examples
Example 3.57 $mysqli->insert_id 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 TABLE myCity LIKE City");
$query = "INSERT INTO myCity VALUES (NULL, 'Stuttgart', 'DEU', 'Stuttgart', 617000)";
$mysqli->query($query);
printf ("New Record has id %d.\n", $mysqli->insert_id);
/* drop table */
$mysqli->query("DROP TABLE myCity");
/* close connection */
$mysqli->close();
?>
Procedural style
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
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mysqli::killmysqli_kill
111
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
mysqli_query($link, "CREATE TABLE myCity LIKE City");
$query = "INSERT INTO myCity VALUES (NULL, 'Stuttgart', 'DEU', 'Stuttgart', 617000)";
mysqli_query($link, $query);
printf ("New Record has id %d.\n", mysqli_insert_id($link));
/* drop table */
mysqli_query($link, "DROP TABLE myCity");
/* close connection */
mysqli_close($link);
?>
The above examples will output:
New Record has id 1.
3.9.32 mysqli::killmysqli_kill
Copyright 1997-2014 the PHP Documentation Group.
• mysqli::kill
mysqli_kill
Asks the server to kill a MySQL thread
Description
Object oriented style
bool mysqli::kill(
int processid);
Procedural style
bool mysqli_kill(
mysqli link,
int processid);
This function is used to ask the server to kill a MySQL thread specified by the processid parameter. This
value must be retrieved by calling the mysqli_thread_id function.
To stop a running query you should use the SQL command KILL QUERY processid.
Parameters
link
Procedural style only: A link identifier returned by mysqli_connect or
mysqli_init
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mysqli::killmysqli_kill
112
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example 3.58 mysqli::kill 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();
}
/* determine our thread id */
$thread_id = $mysqli->thread_id;
/* Kill connection */
$mysqli->kill($thread_id);
/* This should produce an error */
if (!$mysqli->query("CREATE TABLE myCity LIKE City")) {
printf("Error: %s\n", $mysqli->error);
exit;
}
/* 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();
}
/* determine our thread id */
$thread_id = mysqli_thread_id($link);
/* Kill connection */
mysqli_kill($link, $thread_id);
/* This should produce an error */
if (!mysqli_query($link, "CREATE TABLE myCity LIKE City")) {
printf("Error: %s\n", mysqli_error($link));
exit;
}
/* close connection */
mysqli_close($link);
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mysqli::more_resultsmysqli_more_results
113
?>
The above examples will output:
Error: MySQL server has gone away
See Also
mysqli_thread_id
3.9.33 mysqli::more_resultsmysqli_more_results
Copyright 1997-2014 the PHP Documentation Group.
• mysqli::more_results
mysqli_more_results
Check if there are any more query results from a multi query
Description
Object oriented style
bool mysqli::more_results();
Procedural style
bool mysqli_more_results(
mysqli link);
Indicates if one or more result sets are available from a previous call to mysqli_multi_query.
Parameters
link
Procedural style only: A link identifier returned by mysqli_connect or
mysqli_init
Return Values
Returns TRUE if one or more result sets are available from a previous call to mysqli_multi_query,
otherwise FALSE.
Examples
See mysqli_multi_query.
See Also
mysqli_multi_query
mysqli_next_result
mysqli_store_result
mysqli_use_result
mysqli::multi_querymysqli_multi_query
114
3.9.34 mysqli::multi_querymysqli_multi_query
Copyright 1997-2014 the PHP Documentation Group.
• mysqli::multi_query
mysqli_multi_query
Performs a query on the database
Description
Object oriented style
bool mysqli::multi_query(
string query);
Procedural style
bool mysqli_multi_query(
mysqli link,
string query);
Executes one or multiple queries which are concatenated by a semicolon.
To retrieve the resultset from the first query you can use mysqli_use_result or
mysqli_store_result. All subsequent query results can be processed using mysqli_more_results
and mysqli_next_result.
Parameters
link
Procedural style only: A link identifier returned by mysqli_connect or
mysqli_init
query
The query, as a string.
Data inside the query should be properly escaped.
Return Values
Returns FALSE if the first statement failed. To retrieve subsequent errors from other statements you have
to call mysqli_next_result first.
Examples
Example 3.59 mysqli::multi_query 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();
}
$query  = "SELECT CURRENT_USER();";
$query .= "SELECT Name FROM City ORDER BY ID LIMIT 20, 5";
mysqli::multi_querymysqli_multi_query
115
/* execute multi query */
if ($mysqli->multi_query($query)) {
do {
/* store first result set */
if ($result = $mysqli->store_result()) {
while ($row = $result->fetch_row()) {
printf("%s\n", $row[0]);
}
$result->free();
}
/* print divider */
if ($mysqli->more_results()) {
printf("-----------------\n");
}
} while ($mysqli->next_result());
}
/* 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();
}
$query  = "SELECT CURRENT_USER();";
$query .= "SELECT Name FROM City ORDER BY ID LIMIT 20, 5";
/* execute multi query */
if (mysqli_multi_query($link, $query)) {
do {
/* store first result set */
if ($result = mysqli_store_result($link)) {
while ($row = mysqli_fetch_row($result)) {
printf("%s\n", $row[0]);
}
mysqli_free_result($result);
}
/* print divider */
if (mysqli_more_results($link)) {
printf("-----------------\n");
}
} while (mysqli_next_result($link));
}
/* close connection */
mysqli_close($link);
?>
The above examples will output something similar to:
mysqli::next_resultmysqli_next_result
116
my_user@localhost
-----------------
Amersfoort
Maastricht
Dordrecht
Leiden
Haarlemmermeer
See Also
mysqli_query
mysqli_use_result
mysqli_store_result
mysqli_next_result
mysqli_more_results
3.9.35 mysqli::next_resultmysqli_next_result
Copyright 1997-2014 the PHP Documentation Group.
• mysqli::next_result
mysqli_next_result
Prepare next result from multi_query
Description
Object oriented style
bool mysqli::next_result();
Procedural style
bool mysqli_next_result(
mysqli link);
Prepares next result set from a previous call to mysqli_multi_query which can be retrieved by
mysqli_store_result or mysqli_use_result.
Parameters
link
Procedural style only: A link identifier returned by mysqli_connect or
mysqli_init
Return Values
Returns TRUE on success or FALSE on failure.
Examples
See mysqli_multi_query.
See Also
mysqli_multi_query
mysqli_more_results
mysqli_store_result
mysqli_use_result
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