Why doesn't the PHP I write work?

Question

提示我：Notice: Undefined variable: var_dump in D:\phpStudy\PHPTutorial\WWW\my.php on line 11

Fatal error: Function name must be a string in D:\phpStudy\PHPTutorial\WWW\my.php on line 11

Answer 1

Prompt you that the function name must be a string. The error is in line 11 of my.php.

Answer 2

Function/method names must be strings! If you are not using a framework, you need to use the error_reporting function to set the error level.