Php undefined index meaNING

Php undefined index

// Your array index has no value or is not referencing anything,
// The easiest way to overcome this is to simply check whether
// it has been defined
if (isset($arr[$i])) {
	// Do something
}

Php undefined index meaNING

$_SESSION['yy'] = isset($_POST['yy']) ? $_POST['yy'] : "";     // This is on line 11
$_SESSION['mm'] = isset($_POST['mm']) ? $_POST['mm'] : "";     // This is on line 12
$_SESSION['dd'] = isset($_POST['dada']) ? $_POST['dada'] : ""; // This is on line 13

Source: stackoverflow.com

Similar codes

0 vote187 views1 answer
Laravel-medialibrary packagist
PHP Laravel
0 vote190 views1 answer
Create fake users on click laravel
PHP Laravel
51 votes518 views6 answers
Left join laravel
PHP Laravel
1 vote154 views1 answer
"DROP DATABASE" statements are disabled.
PHP
0 vote163 views2 answers
Mysqli_fetch_all() expects parameter 1 to be mysqli_result, boolean given in C:\xampp\htdocs\complete-blog-php\admin\includes\post_functions.php on line 31
PHP
0 vote191 views1 answer
Get data from 2 table in response laravel
PHP Laravel
0 vote202 views1 answer
How show livewire component in laravel
PHP Laravel
1 vote158 views1 answer
Get all pages list from specific template
PHP
0 vote158 views1 answer
Laravel assign class dynamically if condition true
PHP
1 vote203 views1 answer
PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP;
PHP