PHP Lecture 3 - Functions
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This document discusses functions in PHP, including built-in functions, user-defined functions, defining functions with arguments that have default values, and returning values from functions. Functions allow code to be reused and take arguments to perform tasks. The presenter explains functions and their uses in PHP code.
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PHP Lecture 3 - Functions
- 3. FUNCTIONS
- 4. FUNCTIONS Build in Functions1 User Defined Functions2
- 5. function function functionName() { code to be executed; } 2
- 6. Function Arguments function functionName(arg) { code to be executed; } 2
- 7. Function Arguments function functionName(arg1, arg2, arg3) { code to be executed; } 2
- 8. Default Argument Value function functionName(arg3 = 5) { code to be executed; } 2
- 9. Default Argument Value function functionName(arg1, arg3 = 5) { code to be executed; } 2
- 10. Returning values function functionName(arg1, arg2) { code to be executed; return arg1 + arg2; }
- 11. QUESTION ?
- 12. THANK YOU