After following, you can keep track of his dynamic information in a timely manner
Courses in the relevant section：Logical operations of php basic syntax
f($foo || $bar)逻辑或
2019-11-240个赞
Courses in the relevant section：String: Flexible little fairy
简单的字符串输出用单引号‘’ 不通格式或带变量的用""双引号输出，大段的文章段落输出用heredoc或nowdoc=>>>a a;输出
2019-11-270个赞
