Can someone explain this syntax...

[Brian]

What does it mean to have two equal signs next to each other?

eg:

$var1 = $var1==1 ? 3 : 4

and what us the stuff after the ?

$var1 = $var1==1 ? 3 : 4

Thanks!~

[MEELAN]

Here is the answer according my understanding

If  $var1 = 1 then
$var1 = 3
else
$var1 = 4
end if

Am i correct?

[mresell]

Originally Posted by Brian

What does it mean to have two equal signs next to each other?

eg:

$var1 = $var1==1 ? 3 : 4

and what us the stuff after the ?

$var1 = $var1==1 ? 3 : 4

Thanks!~

What language Brian?
Is that php? Definitely makes a diff. Most languages follow similiar rules, but the syntax def varies.

[Brian]

yes, it is PHP. Probably should have indicated that in my 1st post :angel:

[dtay73]

$var = 1 sets the value of $var to 1.
$var == 1 compares the value of $var to 1

[mresell]

Originally Posted by Brian

What does it mean to have two equal signs next to each other?

eg:

$var1 = $var1==1 ? 3 : 4

and what us the stuff after the ?

$var1 = $var1==1 ? 3 : 4

Thanks!~

Brian,
If you are going to be coding in php. phpbuilder.org is a good place to start. Lotsof stuff on php. You need a semi colon after that statement or it won't work. Basically, You are assigning a variable then telling it to evaluate that based on the comparison operators on that variable. This is straight out of the manual under comparison operators. This is the newest syntax.

$a == $b Equal TRUE if $a is equal to $b.

Another conditional operator is the "?:" (or ternary) operator, which operates as in C and many other languages.

(expr1) ? (expr2) : (expr3);

This expression evaluates to expr2 if expr1 evaluates to TRUE, and expr3 if expr1 evaluates to FALSE.