How can the use of create_function impact the compatibility of PHP code with newer versions like PHP8?

The use of create_function in PHP can impact compatibility with newer versions like PHP8 because create_function has been deprecated since PHP 7.2 and removed in PHP 8. To ensure compatibility, it is recommended to replace create_function with anonymous functions or regular named functions. 

// Before
$func = create_function('$a,$b', 'return $a + $b;');

// After
$func = function($a, $b) {
    return $a + $b;
};

Keywords

create_function PHP8 compatibility deprecated lambda functions

Related Questions