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Introduction to PHP [edit] Introduction This is a course designed to teach PHP by example (and eventually assignment) to anyone willing to learn. Bear in mind that this course Tiffany And Co Australia is still a work in progress and is by no means comprehensive in its current state. This is because Notepad expects \r\n, both a newline and a carriage return, while UNIX-based systems only insert the \n newline character. Notepad will open a UNIX-style text file and show the "empty box" unrecognized character instead of the expected line break. Using a more advanced text editor will alleviate these conflicts; the UNIX style produces a smaller script file because each newline only requires 2 bytes (one character) to break the line instead of 4 bytes. For large files, this could make a difference but only as far as storage on your server goes, because the PHP code is never sent to the user's browser, only the result of the PHP commands that were executed; the user will get nothing more than HTML, ideally. Terminating statements with the semicolon allows coders to squeeze together small blocks of code on the same line. For example, the following is acceptable: And will work just the same as the example below. Even though this code will be interpreted correctly by the server, it is generally considered poor style [edit] Variables see also Variables in PHP Variables are locations in memory where information is stored. PHP scripts can contain variables, which are denoted with the $ at the start of their unique identifier (two variables with the same identifier are, essentially, the www.jewelryaustraliaonline.com same variable). Unlike many low end languages, variables in PHP need not be declared and defined-when a variable is used, PHP automatically creates it and assigns it a null value if it does not already exist. Take a look at this example: Now it's your turn to get your hands dirty! Create a function that takes a name, an age, and a height, and outputs a sentence using all of these variables. Also, call the function using a combination of variables and literals. Check your answer here: PHP Assignment Cheap Tiffany Bracelets Answers, and remember, in programming there are a thousand ways to do anything, so don't worry if your script doesn't exactly match the answer! Just make sure it works.