php5-mcrypt 5.4.6-0ubuntu6 (amd64 binary) in ubuntu xenial

 This package provides a module for MCrypt functions in PHP scripts.
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 PHP5 is an HTML-embedded scripting language. Much of its syntax is borrowed
 from C, Java and Perl with a couple of unique PHP-specific features thrown
 in. The goal of the language is to allow web developers to write
 dynamically generated pages quickly.