all letters in capital in php code example
Example 1: php string to uppwe
$lowercase = "this is lower case";
$uppercase = strtoupper($lowercase);
echo $uppercase;
// THIS IS LOWER CASE
Example 2: php uppercase
//string to all uppercase
$string = "String with Mixed use of Uppercase and Lowercase";
//php string to uppercase
$string = strtoupper($string);
// = "STRING WITH MIXED USE OF UPPERCASE AND LOWERCASE"