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Php: $ a = $ b OR $ a = $ c vs triple

I need to assign one of two variables to a third variable, using the value of the second variable if the first (bool) is false or undefined.

I usually do this using triple notation:

$foobar = ($some_prefix_and_some_variable_name) ? $some_prefix_and_some_variable_name : $bar ;

but sometimes it’s not so beautiful if the variable name $ foo is very long, since it should be repeated in this notation.

Now my question is: it’s just as good to use these notation:

$foobar = $some_prefix_and_some_variable_name OR $foobar = $bar;

and is this designation interchangeable with the triple version?

+3
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5 answers

Because it $foobar = $foo OR $foobar = $bar;evaluates this:

Assign foo foobar.

* Is there any value there?
    * If not, assign bar foobar.

While another estimates:

foo?
* foobar = foo
* else foobar = bar

if! foo , foo . . , .

- . 5.3 , , , .

, , , , , , WTF?

+5

PHP 5.3 :

$foobar = $fooooooooooooooooooooooooo ?: $bar ;
+7

PHP 5.3 :

$foobar = $fooooooooooooooooooooooooo ?: $bar;

:

PHP 5.3 . expr1 ?: expr3 expr1, expr1 TRUE expr3 .

+4

, :

$foobar = $fooooooooooooooooooooooooo OR $foobar = $bar;

+1

. , , , ! , , , ( ), , , . , , , - , ( !).

, , :

if($fooooooooooooooooooooooooo){
    $foobar =$fooooooooooooooooooooooooo;
} else {
    $foobar = $bar;
}

, , , .

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