Answer Posted / Raj Kapoor Agrahari
PHP 5 is an older version that was released in July 2004, while PHP 7 is a more modern version released in December 2015. Some key differences include: PHP 7 has better performance due to the introduction of Zend Engine 3; PHP 7 dropped support for deprecated features like short_open_tag, register_globals, and magic quotes; PHP 7 introduced return types in functions, scalar type declarations, and anonymous classes.
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