PHP mysqli: commit() function
mysqli_commit() function / mysqli::commit
The mysqli_commit() function / mysqli::commit commits the current transaction for the specified database connection.
Syntax:
Object oriented style
bool mysqli::commit ([ int $flags [, string $name ]] )
Procedural style
bool mysqli_commit ( mysqli $link [, int $flags [, string $name ]] )
Parameter:
Name | Description | Required/Optional |
---|---|---|
link | A link identifier returned by mysqli_connect() or mysqli_init() | Required for procedural style only. Optional for Object oriented style |
flag | A bitmask of MYSQLI_TRANS_COR_* constants. | Required |
name | If provided then COMMIT/*name*/ is executed. | Required |
Usage: Procedural style
mysqli_commit(connection);
Parameter:
Name | Required/Optional | Description |
---|---|---|
connection | Required | Specifies the MySQL connection to use. |
Return value:
Returns TRUE on success or FALSE on failure.
Version: PHP 5, PHP 7
Example of object oriented style:
<?php
$mysqli = new mysqli("localhost", "user1", "datasoft123", "hr");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$mysqli->query("CREATE TABLE Language LIKE CountryLanguage");
/* set autocommit to off */
$mysqli->autocommit(FALSE);
/* Insert some values */
$mysqli->query("INSERT INTO Language VALUES ('DEU', 'Bavarian', 'F', 11.2)");
$mysqli->query("INSERT INTO Language VALUES ('DEU', 'Swabian', 'F', 9.4)");
/* commit transaction */
if (!$mysqli->commit()) {
print("Transaction commit failed\n");
exit();
}
/* drop table */
$mysqli->query("DROP TABLE Language");
/* close connection */
$mysqli->close();
?>
Example of procedural style:
<?php
$link = mysqli_connect("localhost", "user1", "datasoft123", "hr");
/* check connection */
if (!$link) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* set autocommit to off */
mysqli_autocommit($link, FALSE);
mysqli_query($link, "CREATE TABLE Language LIKE CountryLanguage");
/* Insert some values */
mysqli_query($link, "INSERT INTO Language VALUES ('DEU', 'Bavarian', 'F', 11.2)");
mysqli_query($link, "INSERT INTO Language VALUES ('DEU', 'Swabian', 'F', 9.4)");
/* commit transaction */
if (!mysqli_commit($link)) {
print("Transaction commit failed\n");
exit();
}
/* close connection */
mysqli_close($link);
?>
See also
Previous: close
Next: connect_errno
PHP: Tips of the Day
To use the constant simply use its name:
Example:
if (EARTH_IS_FLAT) { print "Earth is flat"; } print APP_ENV_UPPERCASE;
Output:
or if you don't know the name of the constant in advance, use the constant function:
// this code is equivalent to the above code $const1 = "EARTH_IS_FLAT"; $const2 = "APP_ENV_UPPERCASE"; if (constant($const1)) { print "Earth is flat"; } print constant($const2);
Output:
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