PHP Case Sensitivity
In PHP, No keywords eg;- (if, else, while, Do while, echo etc), claasses, function, user defined function are case sensitive.
All three echo statement below are legal ( and equal) ;-
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Case Sensitivity </title>
</head>
<body>
<h1> </h1>
<?php
echo "Hello Mr. Kumar Atul Jaiswal<br>";
ECHO "Hello Mr. Kumar Atul Jaiswal<br>";
EcHo "Hello Mr. Kumar Atul Jaiswal<br>";
?>
</body>
</html>
Result
Hello Mr. Kumar Atul Jaiswal
Hello Mr. Kumar Atul Jaiswal
Hello Mr. Kumar Atul Jaiswal
- However , All varibales are case-sensitive.
In the example below, only the first statement will display the value of the
$color variables (this is because $color, $COLOR, and $coLoR are treated as three different variables):
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Case Sensitivity </title>
</head>
<body>
<h1> </h1>
<?php
echo "My car is " . $color . "<br>";
echo "My house is " . $COLOR ."<br>";
echo "My boat is " . $coLoR . "<br>";
?>
</body>
</html>
Result
My car is red.
My house is.
My boat is.
Have a Nice Stay Here : - )
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