strtoupper
(PHP 4, PHP 5)
strtoupper — Make a string uppercase
Description
string strtoupper
( string $string
)
Returns string with all alphabetic characters converted to uppercase.
Note that 'alphabetic' is determined by the current locale. For instance, in the default "C" locale characters such as umlaut-a (ä) will not be converted.
Parameters
- string
-
The input string.
Return Values
Returns the uppercased string.
Examples
Example #1 strtoupper() example
<?php
$str = "Mary Had A Little Lamb and She LOVED It So";
$str = strtoupper($str);
echo $str; // Prints MARY HAD A LITTLE LAMB AND SHE LOVED IT SO
?>
Notes
Note: This function is binary-safe.
See Also
- strtolower() - Make a string lowercase
- ucfirst() - Make a string's first character uppercase
- ucwords() - Uppercase the first character of each word in a string
- mb_strtoupper() - Make a string uppercase