Variables and Data Types in PHP

Variables in PHP are used to store data values. PHP automatically determines the type of variable based on its value (dynamic typing).

Declaring Variables

To declare a variable, use the $ sign followed by the variable name:

      
        <?php
          $name = "John"; // String
          $age = 30;      // Integer
          $height = 5.9;  // Float
        ?>
      
    

Common Data Types

Some common data types in PHP include:

• String: A sequence of characters
• Integer: A whole number
• Float: A number with a decimal point
• Boolean: True or false
• Array: A collection of values
• Object: An instance of a class

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