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mysqli_stmt::bind_param, mysqli_stmt_bind_param
167
mysqli_stmt stmt,
string types,
mixed var1,
mixed ...);
Bind variables for the parameter markers in the SQL statement that was passed to mysqli_prepare.
Note
If data size of a variable exceeds max. allowed packet size (max_allowed_packet),
you have to specify b in types and use mysqli_stmt_send_long_data to send
the data in packets.
Note
Care must be taken when using mysqli_stmt_bind_param in conjunction with
call_user_func_array. Note that mysqli_stmt_bind_param requires
parameters to be passed by reference, whereas call_user_func_array can
accept as a parameter a list of variables that can represent references or values.
Parameters
stmt
Procedural style only: A statement identifier returned by
mysqli_stmt_init.
types
A string that contains one or more characters which specify the types for
the corresponding bind variables:
Table 3.14 Type specification chars
Character
Description
i
corresponding variable has type
integer
d
corresponding variable has type
double
s
corresponding variable has type
string
b
corresponding variable is a blob
and will be sent in packets
var1
The number of variables and length of string types must match the
parameters in the statement.
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example 3.77 Object oriented style
<?php
$mysqli = new mysqli('localhost', 'my_user', 'my_password', 'world');
/* check connection */
if (mysqli_connect_errno()) {
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mysqli_stmt::bind_param, mysqli_stmt_bind_param
168
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$stmt = $mysqli->prepare("INSERT INTO CountryLanguage VALUES (?, ?, ?, ?)");
$stmt->bind_param('sssd', $code, $language, $official, $percent);
$code = 'DEU';
$language = 'Bavarian';
$official = "F";
$percent = 11.2;
/* execute prepared statement */
$stmt->execute();
printf("%d Row inserted.\n", $stmt->affected_rows);
/* close statement and connection */
$stmt->close();
/* Clean up table CountryLanguage */
$mysqli->query("DELETE FROM CountryLanguage WHERE Language='Bavarian'");
printf("%d Row deleted.\n", $mysqli->affected_rows);
/* close connection */
$mysqli->close();
?>
Example 3.78 Procedural style
<?php
$link = mysqli_connect('localhost', 'my_user', 'my_password', 'world');
/* check connection */
if (!$link) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$stmt = mysqli_prepare($link, "INSERT INTO CountryLanguage VALUES (?, ?, ?, ?)");
mysqli_stmt_bind_param($stmt, 'sssd', $code, $language, $official, $percent);
$code = 'DEU';
$language = 'Bavarian';
$official = "F";
$percent = 11.2;
/* execute prepared statement */
mysqli_stmt_execute($stmt);
printf("%d Row inserted.\n", mysqli_stmt_affected_rows($stmt));
/* close statement and connection */
mysqli_stmt_close($stmt);
/* Clean up table CountryLanguage */
mysqli_query($link, "DELETE FROM CountryLanguage WHERE Language='Bavarian'");
printf("%d Row deleted.\n", mysqli_affected_rows($link));
/* close connection */
mysqli_close($link);
?>
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mysqli_stmt::bind_result, mysqli_stmt_bind_result
169
The above examples will output:
1 Row inserted.
1 Row deleted.
See Also
mysqli_stmt_bind_result
mysqli_stmt_execute
mysqli_stmt_fetch
mysqli_prepare
mysqli_stmt_send_long_data
mysqli_stmt_errno
mysqli_stmt_error
3.10.5 mysqli_stmt::bind_result, mysqli_stmt_bind_result
Copyright 1997-2014 the PHP Documentation Group.
• mysqli_stmt::bind_result
mysqli_stmt_bind_result
Binds variables to a prepared statement for result storage
Description
Object oriented style
bool mysqli_stmt::bind_result(
mixed var1,
mixed ...);
Procedural style
bool mysqli_stmt_bind_result(
mysqli_stmt stmt,
mixed var1,
mixed ...);
Binds columns in the result set to variables.
When mysqli_stmt_fetch is called to fetch data, the MySQL client/server protocol places the data for
the bound columns into the specified variables var1, ....
Note
Note that all columns must be bound after mysqli_stmt_execute and prior to
calling mysqli_stmt_fetch. Depending on column types bound variables can
silently change to the corresponding PHP type.
A column can be bound or rebound at any time, even after a result set
has been partially retrieved. The new binding takes effect the next time
mysqli_stmt_fetch is called.
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mysqli_stmt::bind_result, mysqli_stmt_bind_result
170
Parameters
stmt
Procedural style only: A statement identifier returned by
mysqli_stmt_init.
var1
The variable to be bound.
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example 3.79 Object oriented style
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* prepare statement */
if ($stmt = $mysqli->prepare("SELECT Code, Name FROM Country ORDER BY Name LIMIT 5")) {
$stmt->execute();
/* bind variables to prepared statement */
$stmt->bind_result($col1, $col2);
/* fetch values */
while ($stmt->fetch()) {
printf("%s %s\n", $col1, $col2);
}
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
?>
Example 3.80 Procedural style
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (!$link) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* prepare statement */
if ($stmt = mysqli_prepare($link, "SELECT Code, Name FROM Country ORDER BY Name LIMIT 5")) {
mysqli_stmt_execute($stmt);
/* bind variables to prepared statement */
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mysqli_stmt::close, mysqli_stmt_close
171
mysqli_stmt_bind_result($stmt, $col1, $col2);
/* fetch values */
while (mysqli_stmt_fetch($stmt)) {
printf("%s %s\n", $col1, $col2);
}
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
?>
The above examples will output:
AFG Afghanistan
ALB Albania
DZA Algeria
ASM American Samoa
AND Andorra
See Also
mysqli_stmt_get_result
mysqli_stmt_bind_param
mysqli_stmt_execute
mysqli_stmt_fetch
mysqli_prepare
mysqli_stmt_prepare
mysqli_stmt_init
mysqli_stmt_errno
mysqli_stmt_error
3.10.6 mysqli_stmt::close, mysqli_stmt_close
Copyright 1997-2014 the PHP Documentation Group.
• mysqli_stmt::close
mysqli_stmt_close
Closes a prepared statement
Description
Object oriented style
bool mysqli_stmt::close();
Procedural style
bool mysqli_stmt_close(
mysqli_stmt stmt);
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mysqli_stmt::__construct
172
Closes a prepared statement. mysqli_stmt_close also deallocates the statement handle. If the
current statement has pending or unread results, this function cancels them so that the next query can be
executed.
Parameters
stmt
Procedural style only: A statement identifier returned by
mysqli_stmt_init.
Return Values
Returns TRUE on success or FALSE on failure.
See Also
mysqli_prepare
3.10.7 mysqli_stmt::__construct
Copyright 1997-2014 the PHP Documentation Group.
• mysqli_stmt::__construct
Constructs a new mysqli_stmt object
Description
mysqli_stmt::__construct(
mysqli link,
string query);
This method constructs a new mysqli_stmt object.
Note
In general, you should use either mysqli_prepare or mysqli_stmt_init to
create a mysqli_stmt object, rather than directly instantiating the object with new
mysqli_stmt. This method (and the ability to directly instantiate mysqli_stmt
objects) may be deprecated and removed in the future.
Parameters
link
Procedural style only: A link identifier returned by mysqli_connect or
mysqli_init
query
The query, as a string. If this parameter is omitted, then the constructor
behaves identically to mysqli_stmt_init, if provided, then it behaves
as per mysqli_prepare.
See Also
mysqli_prepare
mysqli_stmt_init
3.10.8 mysqli_stmt::data_seek, mysqli_stmt_data_seek
Copyright 1997-2014 the PHP Documentation Group.
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mysqli_stmt::data_seek, mysqli_stmt_data_seek
173
• mysqli_stmt::data_seek
mysqli_stmt_data_seek
Seeks to an arbitrary row in statement result set
Description
Object oriented style
void mysqli_stmt::data_seek(
int offset);
Procedural style
void mysqli_stmt_data_seek(
mysqli_stmt stmt,
int offset);
Seeks to an arbitrary result pointer in the statement result set.
mysqli_stmt_store_result must be called prior to mysqli_stmt_data_seek.
Parameters
stmt
Procedural style only: A statement identifier returned by
mysqli_stmt_init.
offset
Must be between zero and the total number of rows minus one (0..
mysqli_stmt_num_rows - 1).
Return Values
No value is returned.
Examples
Example 3.81 Object oriented style
<?php
/* Open a connection */
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER BY Name";
if ($stmt = $mysqli->prepare($query)) {
/* execute query */
$stmt->execute();
/* bind result variables */
$stmt->bind_result($name, $code);
/* store result */
$stmt->store_result();
mysqli_stmt::data_seek, mysqli_stmt_data_seek
174
/* seek to row no. 400 */
$stmt->data_seek(399);
/* fetch values */
$stmt->fetch();
printf ("City: %s  Countrycode: %s\n", $name, $code);
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
?>
Example 3.82 Procedural style
<?php
/* Open a connection */
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER BY Name";
if ($stmt = mysqli_prepare($link, $query)) {
/* execute query */
mysqli_stmt_execute($stmt);
/* bind result variables */
mysqli_stmt_bind_result($stmt, $name, $code);
/* store result */
mysqli_stmt_store_result($stmt);
/* seek to row no. 400 */
mysqli_stmt_data_seek($stmt, 399);
/* fetch values */
mysqli_stmt_fetch($stmt);
printf ("City: %s  Countrycode: %s\n", $name, $code);
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
?>
The above examples will output:
mysqli_stmt::$errno, mysqli_stmt_errno
175
City: Benin City  Countrycode: NGA
See Also
mysqli_prepare
3.10.9 mysqli_stmt::$errno, mysqli_stmt_errno
Copyright 1997-2014 the PHP Documentation Group.
• mysqli_stmt::$errno
mysqli_stmt_errno
Returns the error code for the most recent statement call
Description
Object oriented style
int 
mysqli_stmt->errno ;
Procedural style
int mysqli_stmt_errno(
mysqli_stmt stmt);
Returns the error code for the most recently invoked statement function that can succeed or fail.
Client error message numbers are listed in the MySQL errmsg.h header file, server error message
numbers are listed in mysqld_error.h. In the MySQL source distribution you can find a complete list of
error messages and error numbers in the file Docs/mysqld_error.txt.
Parameters
stmt
Procedural style only: A statement identifier returned by
mysqli_stmt_init.
Return Values
An error code value. Zero means no error occurred.
Examples
Example 3.83 Object oriented style
<?php
/* Open a connection */
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
mysqli_stmt::$errno, mysqli_stmt_errno
176
$mysqli->query("CREATE TABLE myCountry LIKE Country");
$mysqli->query("INSERT INTO myCountry SELECT * FROM Country");
$query = "SELECT Name, Code FROM myCountry ORDER BY Name";
if ($stmt = $mysqli->prepare($query)) {
/* drop table */
$mysqli->query("DROP TABLE myCountry");
/* execute query */
$stmt->execute();
printf("Error: %d.\n", $stmt->errno);
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
?>
Example 3.84 Procedural style
<?php
/* Open a connection */
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
mysqli_query($link, "CREATE TABLE myCountry LIKE Country");
mysqli_query($link, "INSERT INTO myCountry SELECT * FROM Country");
$query = "SELECT Name, Code FROM myCountry ORDER BY Name";
if ($stmt = mysqli_prepare($link, $query)) {
/* drop table */
mysqli_query($link, "DROP TABLE myCountry");
/* execute query */
mysqli_stmt_execute($stmt);
printf("Error: %d.\n", mysqli_stmt_errno($stmt));
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
?>
The above examples will output:
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