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2. Write a PHP program that will display a form containing two fields: username and password, a submit button. Upon submissio
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Answer #1

Code:

<html>
<head>
</head>
<body>
<?php

$name=$password"";
$nameErr=$passwordErr="";

if($_SERVER["REQUEST_METHOD"]=="POST"){
if(empty($_POST["name"])){
$nameErr="Name must be present";
}
else if(ctype_alpha($_POST["name"])){
$name=test($_POST["name"]);
}
else{
$nameErr="Invalid Username";
}
if(empty($_POST["password"])){
$passwordErr="Password must be present";
}
else if(ctype_alnum($_POST["password"])){
$password=test($_POST["password"]);
}
else{
$passwordErr="Password must be alpha numeric";
}
}
function test($data){
$data=trim($data);
$data=stripslashes($data);
$data=htmlspecialchars($data);
return $data;
}
?>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
<table>
<tr>
<td>User Name:</td>
<td><input type="text" name="name">
<span><?php echo $nameErr;?></span>
</td>
</tr>
<tr>
<td>Password</td>
<td><input type="password" name="password">
<span><?php echo $passwordErr;?></span>
</td>
</tr>
<td><input type="submit" name="submit" value="Submit">
</td>
</table>
</form>
</body>
</html>

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