Description:
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Documentation suggests to use db2_autocommit() with either DB2_AUTOCOMMIT_OFF or DB2_AUTOCOMMIT_ON constant. However the function expects 2nd argument of type bool while the constants are of type int.

This produces a TypeError in declare(strict_types=1) mode.

Test script:
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<?php

declare(strict_types=1);

$c = db2_connect('xxx', 'xxx', 'xxx');

db2_autocommit($c, DB2_AUTOCOMMIT_OFF);

Expected result:
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No error - DB2_AUTOCOMMIT_OFF/DB2_AUTOCOMMIT_ON should be accepted.

Actual result:
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TypeError: db2_autocommit() expects parameter 2 to be boolean, integer given