if shorthand !!

[asmith]

Hey guys

 

This short hand syntax is killing me.

All I read about it on the net is about "echo" examples.

 

why this works  :

 

echo "content ",($something != 0)? "print!" : "", "continue ...";

 

but when i put it in a variable  :

 

$a =  "content ",($something != 0)? "print!" : "", "continue ...";

 

it gives me error?

 

How to solve it ?

any GREAT If shorthand tutorial?

 

Thanks

 

 

[PFMaBiSmAd]

why this works  :

Because echo accepts a coma separated lists of parameters and an assignment statement does not. You would need to try the "." (dot) concatenation operator.

[Mchl]

You can't do something like that:

 

$a = "content ","print!","continue ...";

 

If you want to join strings use . (that's a dot)

 

$a =  "content ".($something != 0)? "print!" : "". "continue ...";

[asmith]

$a =  "content ".($something != 0)? "print!" : "". "continue ...";

 

by echo $a ,

 

it gives me "print!". it ignores "content "  and "continue ...". It only gives me print!. 

 

Any idea?

 

[Mchl]

$a =  "content ".(($something != 0)? "print!" : ""). "continue ...";

[asmith]

omg!

lol just a couple of parenthesis?

 

Thanks man. was driving me crazy!

Anyway isn't any good turorial about these shorthand syntaxes?

 

[Mchl]

What other tutorial you need? It just works.

[wildteen88]

omg!

lol just a couple of parenthesis?

 

Thanks man. was driving me crazy!

Anyway isn't any good turorial about these shorthand syntaxes?

 

The best place is always the manual (NOTE: scroll down to the Ternary Operator section).

[.josh]

omg!

lol just a couple of parenthesis?

 

Thanks man. was driving me crazy!

Anyway isn't any good turorial about these shorthand syntaxes?

 

 

No not really, because there isn't really anything else that's "shorthand" syntax. 

[asmith]

@wildteen88 : thanks for the link!

 

This shorthand is only for if and else ?  I mean can't be 3 parts, like "elseif"

 

$a = 5;
echo "print ",($a == 5)? "it is 5" : ($a == 7)? "777" : "none"," finished";

 

 

[.josh]

you can nest it like this:

 

<?php
   $y = 10;
   $x = ($y < 11)? (($y < 11)? "yes" : "innerno") : "outterno"; 
   echo $x;
?>

 

output will be "yes", though seriously, I would not recommend doing this sort of thing.  You should never sacrifice readability for a couple less lines of code.