Learn PHP - The Complete Guide

Learn how variables work in PHP by declaring and printing values across types such as null, boolean, integer, float, string, and object.

Define constants in PHP using the const keyword, assign pi to 3.14, and print the value to verify the constant remains unchanged through the program.

Discover how PHP uses operators to combine values and produce results, covering arithmetic operations like addition, subtraction, multiplication, and division, plus assignment and logical operators.

The lecture demonstrates arithmetic operators in PHP by declaring two variables with a value of 18 and performing addition, subtraction, multiplication, division, and modulus to output results.

Explore PHP comparison operators by declaring variables and evaluating whether values are equal (==) or identical (===), and observe the resulting output.

This lecture demonstrates assigning values to variables in PHP, printing the result, and applying increment and decrement operators, illustrating outputs such as 1 and 2.

Master conditional statements in PHP using if else, explore true conditions, and handle greater than or otherwise scenarios including a 50-50 outcome.

Explore how PHP if-elseif-else controls multiple conditions, such as score checks from 0 to 100, determining pass at 50 percent and awarding distinction.

Learn how to use the PHP switch statement to handle multiple day values, mapping 1–6 to Monday–Saturday with a default (Sunday) and its effect on output.

Explore loops in PHP and how an if condition controls when a loop gets executed. Learn to repeat code efficiently by evaluating loop conditions.

Inspect how a while loop checks a condition, increments x, and outputs results as long as the condition is true, then stops when the condition fails.

Learn how the do-while loop operates in PHP by printing values while the condition keeps numbers less than or equal to nine, using the ++ increment until the loop ends.

Explore how a PHP for loop initializes a counter, checks a condition, and increments to print numbers from zero to nine, demonstrating basic loop flow.

Master the PHP foreach loop to iterate over items and display each element when a condition holds. See how the loop reads each element and outputs its value.

Explore PHP functions and variable scope by demonstrating global and local variables, performing simple addition and multiplication, and displaying results.

Pass values to a function by assigning parameters, call the function, and display the output for number one and number two (3 and 4) using print statements.

Explore how pass by value handles a number in PHP, demonstrating a cube calculation where 3 becomes 27, and observe the output.

Explain pass by reference by demonstrating a swap between two numbers using reference variables and addresses, showing how values are assigned and output is produced.

Discover how strings are a collection of characters. Declare string variables and concatenate them using the dot operator, then print the combined result from variables like A and B.

Learn built in PHP string functions to count words, measure string length, and locate a keyword with string position. The examples illustrate word count, length, and index-based keyword search.

Explore an array by building a collection of similar fruit prototypes, listing types such as orange, grapefruit, and lemon to demonstrate how to organize data.

Explore multidimensional arrays in PHP by assigning values to nested elements and printing the resulting output to understand the array structure.

Learn how to manipulate a PHP array by adding and removing elements with push and pop, and print the array before and after updates.

Learn how to remove the first element from an array in php, observe how zero-based indexing affects output, and see values like bananas, apples, and peaches change accordingly.

Define class: learn object oriented PHP by declaring a basic class with name and description properties, a constant, a constructor to initialize values, and a public display method.

Learn how inheritance works by extending a base class to create a square, using a constructor and properties to compute area and perimeter.

Explore PHP exceptions and exception handling, including throwing new Exception, creating an error handler, and using catch blocks to manage division by zero and related errors.

Learn how to create and use a custom exception in PHP, validate an email address, throw and catch the exception, and display a user friendly error message.