Use of php return

让 Today, the technical manager suddenly asked the PHP script to write a query to judge and return the data. After the data was found, how did you return?

Because I was not packaged into a function, I felt that I could not use Return; after that, I checked it.

A personal summary: (1) return is mainly used in functions. Its main function is to return the results/resources/parameters processed by the function to the calling location

                                                                                                                                                             

                                                                                                                        , return expression // Return an expression result

                                                        c), return // Return directly, or return a null value

val) this way.

The above introduces the use of php return, including aspects of the content. I hope it will be helpful to friends who are interested in PHP tutorials.