CODEWITHSUNDEEP
phpbooleancomparisonvariable-assignment
Daniel Forsyth
Daniel Forsyth

Reputation: 343

PHP: Comparison within Assignment Statement

In my never-ending quest to optimise my line usage, I've just got a quick question about what exactly can go into as assignment statement in PHP (and other languages too, but I'm working on a PHP project).

In my program I have a certain boolean variable, which is toggled by a few things summarised by an if statement. I thought, hang on, that if statement will evaluate to a boolean value, can I just use that logic in one line, as opposed to wrapping a separate assignment statement inside the if. Basically my question is will:

$myVar = ($a == $b);

be equivalent to

if ($a == $b) { $myVar = true; }
else { $myVar = false; }

As you can see, this saves me one whole line, so it will impact my project hugely. /sarcasm

Upvotes: 0

Views: 1052

Answers (2)

invisal
invisal

Reputation: 11171

Short answer, $myVar = ($a == $b); is the same as if ($a == $b) { $myVar = true; } else { $myVar = false; }.

And if you want to be even shorter, you can even remove the (...) and have it barely $myVar = $a == $b;

Upvotes: 2

David J Eddy
David J Eddy

Reputation: 2037

What you are looking for is a terinary operation. Something simialar to 

$var = ($a === $b ? true : false);
echo $var;

Depending on the evaluation result of $a === $b the value of $var is then set.

Upvotes: 2

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