UI-101 (PHP)

Q&A GUIDE - PHP.md

1. Declare a new variable in PHP equal to the number 3 php $number = 3;

2. How do you check if a variable has been set in PHP? php isset($var);

3. How do you access a GET requests URL parameter with PHP? php $_GET["urlkey"]

4. How do you check if a variable has NOT been set in PHP? php !isset($var);

5. What is the difference between require() and include() when an error is encountered? - include() will raise a warning if it fails, require() will raise a fatal error

6. What is a simple PHP method to make a cross domain data request? - file_get_contents()

7. Inside a php function, what param needs to be set in order to access a global variable? php function function_name() {                     global $the_global_var;                 }

cool, keep up