Things Learned
-$_POST is a special variable called superglobal and it holds data
-$_POST is an array
-a period(.) is used for concatenation
-escape characters = represent characters in PHP that are difficult to type or conflict with other code
-PHP has a couple of escape characters -- \' - single quotes -- \"- double quotes -- \n - newlines
- \n has to be in double quoted statement or they won't work
-mail() is the code to send an email in PHP
-echo a PHP command for sending output to browser window
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