What is difference between require_once(), require(), include().Becouse above three function usely use to call a file in another file.
Editorial / Best Answerbicu
Difference between require() and require_once(): require() includes and evaluates a specific file, while require_once() does that only if it has not been included before (on the same page).
So, require_once() is recommended to use when you want to include a file where you have a lot of functions for example. This way you make sure you don't include the file more times and you will not get the "function re-declared" error.
Difference between require() and include() is that require() produces a FATAL ERROR if the file you want to include is not found, while include() only produces a WARNING.
There is also include_once() which is the same as include(), but the difference between them is the same as the difference between require() and require_once().
- Return multiple values at a time from function
- .Rec file not created
- Opc 43 & 53 cement grades
- Host file access
- Copy of file in gde
- Classical and alv report
- Email validation via cobol
- Split a 10 gb file into 10 files of 1 gb
- Oracle connector stage and Oracle enterprise satge
- Change the configuration file during run-time
- Foundation recommendation
- Telecom project explanation in data stage
- Hard or soft mount
- Test scenarios for view functinality
- Ms SQL server and SQL server
- Change request (cr) and modification
- Nominal ledger
- Filters and restricted columns
- Difference between mobile app testing and mobile app native testing
- Horizontal and vertical clustering