Are 2 equal signs ok?

[chantown]

This script says this (it's a login script)...

 

$this->username = $_SESSION['username'] = $this->userinfoarray['username'];

 

Theres 2 equal signs..

 

why can't he just do $this->username = $this->userinfoarray['username'];  ?

[cooldude832]

There are 3 different php operators using equal signs. 

 

$var = "This" sets something equal to something else as in value

if($var == "This") is a comparasion between the values, does not care about case/var type only that their output = the same

example

$var1 = 1;

$var2 = "1";

$var1 == $var2; //This is true even though on is numeric one is a string

 

Then there is === which is like == but checks for var type and case

[chantown]

No, i mean that  php "statement" has 2 equal signs in it (not ==)

 

 

[cooldude832]

reallly an OOP question, but anyways I think its just saying A=B=C so A=C and B=C.

[noidtluom]

It is correct.

 

Basically he wanted to set those $this->var in the Class all the same value, as well as the _SESSION.

 

For example instead of doing:

 

<?php $var1=1; $var2=1; $var3=1; ?>

 

You can just do:

 

<?php $var1=$var2=$var3=1; ?>

 

Sorry for the lack of neatness in PHP coding I'm not normally like that unless I'm giving a quick example.