PHP Classes

File: Help.txt

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  Classes of Ralf Mike Pretzlaw   Overload   Help.txt   Download  
File: Help.txt
Role: Documentation
Content type: text/plain
Description: Summary of the functionality
Class: Overload
Emulate class function overloading
Author: By
Last change: Missed semicolon
Date: 15 years ago
Size: 1,256 bytes


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You just need multiple (protected!) functions in your class with the special signature to work with them in an object as known from JAVA etc. There are 7 types that you can vary: B - Boolean I - Integer / Long F - Float / Double S - String A - Array O - Object R - Ressource Just add these letters after an underline character ("_") to define the signature of the function. All functions have to be protected! Here is an example: class Example extends Overload { protected function foo() { return NULL; } protected function foo_S($string) { echo $string; } protected function foo_SI($string, $integer) { echo $string . " equals " . $integer . "."; } } Now you can call just "foo" with different signatures: $o = new Example(); $o->foo(); // Will call foo() $o->foo("Hello World!"); // Will call foo_S("Hello World!") $o->foo("Pi", 3); // Will call foo_SI("Pi", 3) $o->foo(3, "Pi"); // Will lead to an error because there is no function with foo_IS $o->foo($o, 1); // Will lead to an error because there is no function with foo_OI NOTE: It only works in objects / non-static functions.