assert_options(ASSERT_ACTIVE, 1); //启用断言
assert_options(ASSERT_WARNING, 0); //不输出警告
assert_options(ASSERT_QUIET_EVAL, 1); //不关闭错误提示
assert_options(ASSERT_BAIL, 1); //终止运行
assert_options(ASSERT_CALLBACK, 'my_assert_handler'); //启用回调函数
function my_assert_handler($file, $line, $code)
{
echo "<hr>Assertion Failed:File '$file'<br />Line '$line'<br />Code '$code'<br /><hr />";
}
assert('1==2');
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