Magento 2.4.5 Upgrade Error in PHP 8.1: json_decode() Passing Null to Parameter #1

deprecatedjsonmagento2.4.5

I am facing after an issue after upgrading version magneto 2.4.2 to 2.4.5 When I run this command I got error

json_decode(): Passing null to parameter #1 ($json) of type string is deprecated

app/code/Vendor/Module/Helper/Data.php(495): json_decode(NULL)

Best Answer

Try below code 1. Add string (string)

public function getParametersAttribute()
{
   return $cookieValue=json_decode((string)$cookieValue);
}

2. Add condition

public function getParametersAttribute(){
if (isset($cookieValue)) {
   return $cookieValue=json_decode($cookieValue);
 }else{
    return [];
  }
}

3. Try this one

public function getParametersAttribute(){
   return $cookieValue= json_decode($cookieValue ?? '');
}

Related Solutions

Magento 2.4.4 – How to Fix str_replace Deprecated Functionality Error

That error indicates somewhere in your code passing null to the third parameter when calling a PHP function that is deprecated in PHP 8.1.

Assume you have below code:

return sprintf(
    $path,
    str_replace('methods_', '', $method)
);

The type of the third parameter should be changed to string if it is null. So the fixed code looks like the below:

return sprintf(
    $path,
    str_replace('methods_', '', $method ?? '')
);

The solution for your code: Change app/code/Velanapps/Hse/view/frontend/templates/new_year_ball.phtml on line 39 to the following

$fromDate = date("Y-m-d",strtotime(str_replace("/", "-", $hseHelper->getNewYearBallFromDate() ?? '')));
$toDate  = date("Y-m-d",strtotime(str_replace("/", "-", $hseHelper->getNewYearBallToDate() ?? '')));

PHP Fatal Error – Handling Deprecated Functionality in Magento 2.4.5

You just need to add

: mixed

public function jsonSerialize() : mixed

Your issue will be fixed

Best Answer

Related Solutions

Magento 2.4.4 – How to Fix str_replace Deprecated Functionality Error

PHP Fatal Error – Handling Deprecated Functionality in Magento 2.4.5

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