How does PHP handle case sensitivity when it comes to variables, and why is it important to pay attention to this aspect?

PHP is case-sensitive when it comes to variables, meaning that variables with different casing are considered different variables. It is important to pay attention to this aspect to avoid errors and inconsistencies in your code. To ensure consistency, always use the same casing when referring to variables throughout your code. 

$variable = "Hello";
$Variable = "World";

echo $variable; // Output: Hello
echo $Variable; // Output: World

Keywords

php case sensitivity variables importance attention

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