PHP Assignment Operators

Assignment operators are used with numeric values to write a value to a variable. The most basic assignment operator is the equal sign (=), which sets the value of the left operand to the value of the expression on the right.

The Basic Assignment (=)

In PHP, the = does not mean "equals" (that is handled by comparison operators). Instead, it means **"set the value of."**

<?php
    $x = 10; // $x now holds the value 10
?>

Table of Assignment Operators

PHP also provides "shorthand" operators that combine a mathematical operation with assignment.

Practical Example

Using shorthand operators makes your code cleaner and easier to read, especially when updating totals in a loop.

<?php
    $total = 100;
    $tax = 15;

    $total += $tax; // Instead of $total = $total + $tax;
    echo $total; // Outputs: 115
?>

Key Points to Remember

• The = operator sets a value; it doesn't compare them.
• Shorthand operators (like +=) combine math and assignment.
• Using shorthand makes code cleaner and more professional.
• Shorthand math works the same way for subtraction, multiplication, and division.
• Always remember that the variable being updated must be on the left side.