php lowercase to uppercase 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"

Example 3: php change sting to caps

$lowercase = "this is lower case";
$uppercase = strtoupper($lowercase);

echo $uppercase;

Example 4: php convert to lowercase

<?php
echo strtolower("Convert THIS TEXT ALL TO LOWER CASE");
?>

Example 5: php code to convert to small letter

$str = strtolower($str);