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PHP PHP Functions Introducing Functions PHP Function Default Arguments

Randall Zepeda
Randall Zepeda
1,979 Points
Posted by Randall Zepeda
Randall Zepeda
1,979 Points

null

what is the point of putting null in your parameters functions instead of just leaving it equal to nothing as it shows the same result and outputs the ELSE statement either way. example below: notice if i made parameter $swag=Null, it will still echo the same result.

<?php

function buck_zitches($game,$swag){ if($swag){echo "randy has $game and $swag";} else{echo"randys da best $game";}}

buck_zitches('skillz'); ?>

2 Answers

james white
james white
78,399 Points
james white
james white
78,399 Points

Hi Randall,

So the question you are asking is basically:

Is passing NULL param exactly the same as passing no param?

OR

Does PHP treat passing a NULL exactly the same as not passing anything?

Have you considered the question in the context of using the func_num_args function?

Probably not..

Anyway..I think such questions are pretty mundane,

but questions like the one you're asking make those guys over at StackOverFlow drool with anticipation.. :wink:

..they really love answering programming trivia like this,

So I let them give you their answers here:

http://stackoverflow.com/questions/4573590/is-passing-null-param-exactly-the-same-as-passing-no-param

Randall Zepeda
Randall Zepeda
1,979 Points
Randall Zepeda
Randall Zepeda
1,979 Points

lol thanks and naa ill check func_num_args out