WeberDev.com -> PHP Manual -> Set/get the various assert flags

mixed assert_options ( int $what [, mixed $value ] )

Set the various assert() control options or just query their current settings.

what

**Assert Options**
option	ini-parameter	default	description
ASSERT_ACTIVE	assert.active	1	enable assert() evaluation
ASSERT_WARNING	assert.warning	1	issue a PHP warning for each failed assertion
ASSERT_BAIL	assert.bail	0	terminate execution on failed assertions
ASSERT_QUIET_EVAL	assert.quiet_eval	0	disable error_reporting during assertion expression evaluation
ASSERT_CALLBACK	assert.callback	(`NULL`)	user function to call on failed assertions

value

An optional new value for the option.

Returns the original setting of any option or FALSE on errors.