How to make picture puzzle using JavaScript What is PHP? PHP (recursive acronym for PHP: Hypertext Preprocessor ) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. Nice, but what does that mean? An example: Example #1 An introductory example <!DOCTYPE html> <html> <head> <title>Example</title> </head> <body> <?php echo "Hi, I'm a PHP script!" ; ?> </body> </html> Instead of lots of commands to output HTML (as seen in C or Perl), PHP pages contain HTML with embedded code that does ...