strtoupper

strtoupper

Make a string uppercase

string **strtoupper** string $string

Returns with all ASCII alphabetic characters converted to uppercase. string

Bytes in the range (0x61) to (0x7a) will be converted to the corresponding uppercase letter by subtracting 32 from each byte value. "a"``"z"

This can be used to convert ASCII characters within strings encoded with UTF-8, since multibyte UTF-8 characters will be ignored. To convert multibyte non-ASCII characters, use . mb_strtoupper

stringThe input string.

Returns the uppercased string.

Voorbeeld: 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
?>

strtolower``ucfirst``ucwords``mb_strtoupper