case INsensetive if statment

[billiondevil]

hi i am making a mailing system and i need some help, how would i make this if statment case INsensitive?

if ($info['too']<>$_SESSION['myusername']) {
die('<table class="box3" width="644"><tr><td>Warning</td></tr></table><table class="box3" width="644"><tr><td><font color=red>This mail does not belong to you!</font></td></tr></table>');
}

thx in advance.😃

[NogDog]

if(strtolower($info['too']) <> strtolower($_SESSION['myusername'])) {

[laserlight]

Alternatively:

if (strcasecmp($info['too'], $_SESSION['myusername']) != 0) {