<?php
if(isset($_POST['submit'])){
$flag = 0;
$num = $_POST['number'];
for($i=2; $i<$num; $i++){
if($num % $i == 0){
$flag = 1;
break;
}
}
if($flag == 0){
$prime = "Prime Number";
}else{
$prime = "Not a Prim Number";
}
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Prime Number</title>
</head>
<body>
<form action="" method="post">
Enter Number : <input type="text" name="number" ><br><br>
Result : <input type="text" value="<?php if(isset($prime)) {echo $prime;} ?>" ><br><br>
<input type="submit" value="Chack Prime or Not" name="submit">
</form>
</body>
</html>
if(isset($_POST['submit'])){
$flag = 0;
$num = $_POST['number'];
for($i=2; $i<$num; $i++){
if($num % $i == 0){
$flag = 1;
break;
}
}
if($flag == 0){
$prime = "Prime Number";
}else{
$prime = "Not a Prim Number";
}
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Prime Number</title>
</head>
<body>
<form action="" method="post">
Enter Number : <input type="text" name="number" ><br><br>
Result : <input type="text" value="<?php if(isset($prime)) {echo $prime;} ?>" ><br><br>
<input type="submit" value="Chack Prime or Not" name="submit">
</form>
</body>
</html>