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   ► KBTo/From GuidesASP ClassicLanguage Details  Print This     

Custom Routines (Cross Ref > Language Details)

By Mike Prestwood

ASP Classic versus PHP: A side by side comparison between ASP Classic and PHP.

 
Language Details
 

Language Details is kind of a catch all for stuff that didn't make it into language basics nor any other category.

Custom Routines

[Other Languages] 

Languages Focus

For non-OOP languages, a custom routine is a function, procedure, or subroutine and for pure OOP languages, a custom routine is a class method. Hybrid languages (both non-OOP and OOP) combine both.

ASP Classic:   Sub, Function

ASP Classic is a non-OOP language with some OOP features. It offers both Subs and Functions. A Sub does not return a value while a Function does. When Subs and Functions are used in a defined class, they become the methods of the class.

Syntax Example:
Sub SayHello(ByVal pName)
  Response.Write "Hello " + pName + "!<br>"
End Sub
 
Function Add(ByRef pN1, ByRef pN2)
  Add = pN1 + pN2
End Function
PHP:  "Custom Function" function

PHP uses functions and loosely typed parameters. Function definitions can come before or after their usage so my preference when mixing PHP in with a mostly HTML page is to put the functions after the </html> tag.

Syntax Example:
function sayHello($pName) {
 echo "Hello " . $pName . "<br>";
}
 
function add($p1, $p2) {
 return $p1 + $p2;
}












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