<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> strtoupper.php </title>
<meta charset="UTF-8">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
</head>
<body>
<form method="post" action="">
<input type="text" name="usrname" value=<?php echo '"' . (isset($_POST["usrname"])?$_POST["usrname"]:"") . '"' ?> ><br>
<input type="submit">
</form>
<br>usrname:<br>
<?php
if(isset($_POST["usrname"]))
{
echo strtoupper($_POST["usrname"]);
}
?>
<hr>
</body>
</html>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> strtoupper.php </title>
<meta charset="UTF-8">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
</head>
<body>
<script type="text/javascript">
function show_str()
{
str=document.getElementById("username").value;
alert(str.toUpperCase());
}
</script>
<form method="post" action="">
<input id="username" type="text" name="usrname" value=<?php echo '"' . (isset($_POST["usrname"])?$_POST["usrname"]:"") . '"' ?> ><br>
<input type="submit" onclick="show_str()">
</form>
<br>usrname:<br>
<?php
if(isset($_POST["usrname"]))
{
echo strtoupper($_POST["usrname"]);
}
?>
<hr>
</body>
</html>