The PHP Function OpenSSL_Pkey_Free
The php function openssl_pkey_free frees a private key created by the OpenSSL extension. It also frees public key resources as received by openssl_pkey_get_public(). PHP 8.0 changed the OpenSSL extension resource objects to standard class objects and all functions that accepted these resources now return these class objects instead. This change should not cause problems for code that only uses the extension functions in backwards compatibility mode with PHP 7.0 or earlier.
A php function is a piece of code that takes other input in the form of an argument list and returns a value. There are thousands of built-in php functions that can be used in any script to perform various tasks. Moreover, a php script can also contain custom functions that can be written to meet specific requirements.
Object inheritance is the programming paradigm that allows classes in a script to extend and reimplement the public and protected methods of other classes. In PHP, public methods can be overridden in a class B that extends the class A by making its own version of the method with less restrictive access than the original public method in A. Similarly, private methods are not inherited by classes that extend class A, but they can be reimplemented in a class B that extends class A by making its own version of the same private method as in A.
PHP 8 introduces the str_starts_with and str_ends_with functions that allow developers to check if string values start or end with another given string. Also, it includes a new
