bool assert ( mixed $assertion [, string $description ] ) — 检查一个断言是否为 FALSE复制代码 代码如下:assert_options(ASSERT_ACTIVE, true);//允许使用assert()函数 assert_options(ASSERT_WARNING, false);//在assert失败时不输出警告信息 assert_options(ASSERT_BAIL, true);//assert失败后终止代码执行 assert_options(ASSERT_CALLBACK, ‘getMsg’);//assert失败