Hypertext Preprocessor, commonly abbreviated as PHP, is a scripting language or code primarily used to develop general-purpose, open-source, server-written applications.

“Notice: Trying to access array offset on value of type bool in PHP” is a fairly common error that every programmer will encounter. So, what are our options? Everything will be explained to you.

When Does The Error “Notice: Trying to access array offset on value of type bool in PHP” Occur?

Recently you updated PHP to 7.4, and now you face the following error.

Notice: Trying to access array offset on value of type bool

Here is the code you are attempting to run.

  if(is_null($userData['userList'])) { // here I am facing issue

        //some stuff

    } else {

        //some stuff

    }

In another case, the error occurred like this.

public static function read($id)

{ 

$Row = MySQL::query("SELECT `Data` FROM `cb_sessions` WHERE `SessionID` = '$id'", TRUE); 

# http://php.net/manual/en/function.session-start.php#120589 

//check to see if $session_data is null before returning (CRITICAL)

if(is_null($Row['Data'])) 

{ 

$session_data = ''; 

} 

else 

{ 

$session_data = $Row['Data']; 

} 

return $session_data; 

}

The Top Solutions For The Error “Notice: Trying to access array offset on value of type bool in PHP”

There are some ways to correct the problem – Notice: Trying to access array offset on value of type bool in PHP; just select the best method for you.

Method 1: Using if condition 

You need to use multiple if statements like this.

if($userData){

   if($userData['userList']){

     // your stuff

   }else{

    // your stuff

   }

}

You can also use this code.

if(empty($row)){

                {

                    continue;

                }

                    return $row;

                }

Method 2: Use Null Coalescing Operator

In this solution, you can use this code.

return $userData['userList'] ?? 'your default value';

The following code is also useful to you.

$userData['userList'] ??= 'your default value';

return $userList['userList'];

Method 3: Variable $Row

Access the index inside as follow:

if($Row){
if(is_null($Row['Data']))
{
$session_data = '';
}...

Conclusion

PHP is very suitable for the web and can be easily embedded into HTML pages.

Because it is optimized for web applications, fast, compact, has a syntax similar to C and Java, is easy to learn, and has a relatively shorter product build time than other languages, PHP has quickly become one of the most popular languages ​​in the world.

Individual solutions provided by these tools are among the most basic for anyone faced with “Notice: Trying to access array offset on value of type bool in PHP“.

If you still need assistance or have additional questions, a growing community of people is usually willing to assist you. In addition, we anticipate a more creative day filled with new ideas and code.