Php/docs/function.strtoupper
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strtoupper
(PHP 4, PHP 5, PHP 7)
strtoupper — Make a string uppercase
Description
strtoupper
( string $string
) : string
Returns string with all alphabetic characters
converted to uppercase.
Note that 'alphabetic' is determined by the current locale. For instance, in the default "C" locale characters such as umlaut-a (ä) will not be converted.
Parameters
string- The input string.
Return Values
Returns the uppercased string.
Examples
Example #1 strtoupper() example
<?php$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 isbinary-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
