string strtoupper ( string $str )
strtoupper() converts all alphabetic characters of a string to uppercase.
※ available F/W version : all
Returns the uppercased string, PHP error on error
<?php
$str_org = "Hello PHPoC!";
$str_upper = strtoupper($str_org);
printf("str_org = %s, str_upper = %s\r\n", $str_org, $str_upper);
// OUTPUT: str_org = Hello PHPoC!, str_upper = HELLO PHPOC!
?>
This function is identical to the PHP group’s strtoupper() function.