Question

Is PHP Case Sensitivity

Answer 1

// keywords, classes and functions are NOT case-sensitive

ECHO "NOT case-sensitive <br />";
echo "NOT case-sensitive <br />";
EcHo "NOT case-sensitive <br />";

 
/*
run:
 
NOT case-sensitive
NOT case-sensitive
NOT case-sensitive 
 
*/

 

70+ SQL courses for beginners and professionals

Answer 2

// variable names are case-sensitive

$n = 100;
echo $n . "<br />";
echo $N . "<br />";
 
/*
run:
 
100

Notice: Undefined variable: N in C:\xampp\htdocs\he.seek4info.com\test.php on line 9
 
*/

 

70+ SQL courses for beginners and professionals