<?php

if(empty($_POST['var'])){
?>
<form method="post" action="script.php">
<input name="var" type="text" value="1">
<input type="submit" value="send">
</form>
<?php
}else{
$var = $_POST['var'];

for($i = 0; $i <= $var; $i++){
print("SEX!</b>\n");
}
}
?>