//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"$foo = 'hello world!';
$foo = ucwords($foo); // Hello World!
$bar = 'HELLO WORLD!';
$bar = ucwords($bar); // HELLO WORLD!
$bar = ucwords(strtolower($bar)); // Hello World!
//With custom delimiter
$foo = 'hello|world!';
$bar = ucwords($foo); // Hello|world!
$baz = ucwords($foo, "|"); $upperCaseSentance=ucwords("i do not feel good");//I Do Not Feel Good<?php
echo ucwords("hello world"); // ouput Hello World
?>