Php exception handling technology, top-level exception processor, php exception handling _ PHP Tutorial

Php exception handling technology, top-level exception processor, and php exception handling. Php exception handling technology, top-level exception processor, php exception handling php handles exceptions like java and uses try {} catch () {} defines the functions used by the top-level exception processor as set_ex php exception handling technology, top-level exception processor, and php exception handling

Php handles exceptions like java. it uses try {} catch (){}

Which of the following functions is used to define a top-level exception processor? Set_exception_handler("My_exception"); here, My_expection is a developer-defined exception handling function, which is a top-level exception processor, the top-level exception processor is used to handle exceptions only when there are no functions in the program to handle exceptions. if the top-level exception processor is not defined, the system's default exception processor is used to handle exceptions. example:

Reprinted from: http://blog.sina.com.cn/s/blog_641d5693010121cr.html

Same as java, runtime php uses try {} catch () {} to define the function set_ex used by the top-level exception processor...