Can anyone tell me how to resolve the below error. "Deprecated Functionality: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated"
I am using magento 2.4.4 with php 8.1
Check full error message here https://prnt.sc/tT33R-c4w3SK.
Below is the line causing error.
fromDate = date("Y-m-d",strtotime(str_replace("/", "-".$hseHelper->getNewYearBallFromDate())));
$toDate = date("Y-m-d",strtotime(str_replace("/", "-", $hseHelper->getNewYearBallToDate())));
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() ?? '')));
When you get this type of error then you should use this
If string requires
$var ?? ''
If array requires
$var ?? []
If number require
$var ?? <addDefaultNumber>
If a Number type require and you have added a string type then (22 and '22' are different)
intval($var)
str_replace(): Argument #3 ($subject) must be of type array|string, float given
$float = 0.123;
$string = sprintf("%.2f", $float);
OLD
fromDate = date("Y-m-d",strtotime(str_replace("/", "-".$hseHelper->getNewYearBallFromDate())));
$toDate = date("Y-m-d",strtotime(str_replace("/", "-", $hseHelper->getNewYearBallToDate())));
NEW
fromDate = date("Y-m-d",strtotime(str_replace("/", "-".$hseHelper->getNewYearBallFromDate() ?? '')));
$toDate = date("Y-m-d",strtotime(str_replace("/", "-", $hseHelper->getNewYearBallToDate() ?? '')));
The str_replace() function in PHP 8.1 is deprecated for passing null to non-nullable internal function parameters. This means that if you use string casting, null will always be converted to an empty string.
