PHP

Paradigm(s)    imperative, functional, object-oriented, procedural, reflective
Designed by    Rasmus Lerdorf
Developer    The PHP Group
Appeared in    1995; 19 years ago[1]
Stable release    5.6.2[2] / October 16, 2014; 24 days ago
Preview release    5.6.1RC1[3] / September 11, 2014; 59 days ago
Typing discipline    Dynamic, weak
Major implementations    Zend Engine, HHVM, Phalanger, Quercus, Project Zero, Parrot
Influenced by    Perl, C, C++, Java, Tcl[1]
Influenced    Hack
Implementation language    C (primarily; some components C++)
OS    Cross-platform (Unix-like systems, Windows, other 32-bit and 64-bit platforms)
License    PHP License (most of Zend engine under Zend Engine License)
Filename extension(s)    .php, .phtml, .php4, .php3, .php5, .phps
Website    php.net
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