assert_options
(PHP 4, PHP 5)
assert_options — Set/get the various assert flags
说明
mixed assert_options ( int $what [, mixed $value ] )Set the various assert() control options or just query their current settings.
参数
- what
-
Assert Options Option INI Setting Default value Description ASSERT_ACTIVE assert.active 1 enable assert() evaluation ASSERT_WARNING assert.warning 1 issue a PHP warning for each failed assertion ASSERT_BAIL assert.bail 0 terminate execution on failed assertions ASSERT_QUIET_EVAL assert.quiet_eval 0 disable error_reporting during assertion expression evaluation ASSERT_CALLBACK assert.callback (NULL) Callback to call on failed assertions - value
-
An optional new value for the option.
返回值
Returns the original setting of any option or FALSE on errors.
范例
Example #1 assert_options() example
<?php
// This is our function to handle
// assert failures
function assert_failure()
{
echo 'Assert failed';
}
// This is our test function
function test_assert($parameter)
{
assert(is_bool($parameter));
}
// Set our assert options
assert_options(ASSERT_ACTIVE, true);
assert_options(ASSERT_BAIL, true);
assert_options(ASSERT_WARNING, false);
assert_options(ASSERT_CALLBACK, 'assert_failure');
// Make an assert that would fail
test_assert(1);
// This is never reached due to ASSERT_BAIL
// being true
echo 'Never reached';
?>
参见
- assert() - Checks if assertion is FALSE
