Getting Started With PHP For Beginners

Learn how to use arithmetic operators in PHP, including addition, subtraction, multiplication, division, modulus, and increment/decrement, with example variables x=10 and y=5.

Explore assignment operators and arithmetic in PHP by tracking a wallet balance of 500 and subtracting 200, using shorthand operators like -= and +=, plus modulo, multiplication, and addition examples.

Explore PHP comparison operators, including greater than, less than, greater than or equal, and less than or equal, plus equals, not equals, and the identical operator, with numbers and strings.

Explore logical operators that combine conditional statements, including and (&&), or (||), not (!), and exclusive or (xor), with practical true/false examples.

Explore how arrays in PHP store multiple values of different data types, using index zero and short syntax with square brackets, and learn to print elements or the whole array.

Explore PHP conditional statements with the if else structure, including syntax, true and false branches, and elseif in action through a legal age example.

Use the while loop in PHP to repeat code while a condition is true, starting at zero and counting to 500. Echo each number and increment the counter.

Explore PHP functions, including built-in and user-defined ones, declared with function, named using camel case, and invoked to reuse code with parameters and arguments.

Learn how the $_POST superglobal stores form data as an array and keeps it invisible in the URL, using a login form to handle sensitive information like passwords.

Learn how cookies work as a PHP super global to identify users and track activity, and how to set cookies with name, value, expiration, domain, secure, and http only options.

Build a simple contact us form in PHP with front-end validation, showing errors for name, email, gender, and message, then submit via post and display the output.

Initialize variables in php, verify the form uses post, and echo the submitted data to display results. Validate inputs by checking for emptiness and show error messages for required fields.

Declare new variables to hold the error messages for name, email, agenda, and message, validate emptiness, and echo the appropriate errors near the form fields.

Enhance php form security by building a reusable input validator that trims, strips slashes, removes html special characters, and validates emails with filter_var.