When to use laravel filled() Vs PHP empty()-CodePudding

The filled function Vs using the empty function. What is the reason for choosing filled Vs !empty()?

CodePudding user response：

I think they basically do the same work. The only difference that I noticed is that the filled() method is a Laravel's helper function and only available on a $request instance or in the Illuminate\Http\Request class. While the empty() method is available globally because its a PHP's helper function. You can use empty() on any variable in any class or controller. While on the other hand filled() can only be used wherever you're receiving a request or you have to manually create an instance of Request class.

Personally, I've never used the filled() method, so I can't tell you exactly what is the technical difference between them (if there is any).

CodePudding user response：

The big difference between filled or its inverse blank and empty is what is considered empty.

For example:

filled(0);    // true
blank(0);     // false
!empty(0);    // false

filled('  '); // false;
blank('  ');  // true;
!empty('  '); // true;

filled('');   // false;
blank('');    // true;
!empty('');   // false;

The functions work in a very different way, so it's not a matter of just picking one of the two. It depends on what you are trying to do in your code.

CodePudding user response：

empty example

$test = array(
1 => '',
2 => "",
3 => null,
4 => array(),
5 => FALSE,
6 => NULL,
7=>'0',
8=>0,
);

foreach ($test as $k => $v) {
    if (empty($v)) {
        echo "<br> $k=>$v is empty";
    }
}
/**
Output
1=> is empty
2=> is empty
3=> is empty
4=>Array is empty
5=> is empty
6=> is empty
7=>0 is empty
8=>0 is empty
**/


if(isset($test)) // return true because $test is defined
if(is_null($test)) // return false because $test is not null