Xlator/1.php

## 1.php
<?php if(isset($_GET["fuckit"])) { // Remove the data file and redirect
	unlink("data");
	header("Location: ./1.php");
}
?>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8" />
    <title>Reddit DB</title>
	<style>form:before{ content:"Input"; font-size:1.5em; } form{ background: #DDD; } ul,form{  padding: 1em;  list-style-type:none; max-width:30%; margin:0 auto; } ul{ border-bottom: 1px solid #999; } ul:first-child,form:first-child{ margin-top:10em; } ul.errors{ background:#FDD; } ul.errors:before{ content:"Error!"; font-size: 1.5em; color:#F00; } ul.output{ background:#DFD; } ul.output:before{ content:"Output"; font-size: 1.5em; color:#090; } ul.latest{ background:#DDF; } ul.latest:before{ content:"Latest users"; font-size:1.5em; color:#00F; } li a { color: #666; text-decoration:none; font-family: sans-serif; font-size: 0.8em; float: right; } 	</style>
</head>

<body>

<?php
function validate($input) {
	$output = array();
	$errors = array();
	foreach($input as $key => $value) {
		if($key == "age") {
			$age = (int)$value;

			if($age == 0)
				$errors[] = "Invalid age";
			else
				$output["age"] = $age;
		}

		else if(strlen($value) < 1)
			$errors[] = "Invalid $key";
		else
			$output[$key] = filter_var($value,FILTER_SANITIZE_SPECIAL_CHARS);
	}

	return array($output,$errors);
}

function printErrors($errors) {
	$out = "";
	foreach($errors as $e)
		$out .= "<li>$e</li>\n";

	if(strlen($out) > 0) {
		print("<ul class=errors>$out</ul>");
		return true;
	}
	return false;
}

function printBack($output) {
	$out = "";
	foreach($output as $k => $v) {
		if($k == "reddit")
			$k = "$k username ";
		$out .= "<li>Your $k is $v</li>\n";
	}
	print("<ul class=output>$out</ul>");
}

function store($output) {
	file_put_contents("data",serialize($output)."\n",FILE_APPEND);
}

function fetch() {
	$fname = "data";
	if($file = @file_get_contents($fname)) {
		$lines = explode("\n",$file);
		$users = array();
		foreach($lines as $l) {
			$users[] = unserialize($l);
		}
		return($users);
	}
	return false;
}

function latest($users) {
	$users = array_reverse($users);
	return array_slice($users,0,5);
}

if(!empty($_POST)) {
	$output = validate($_POST);
	$errors = $output[1];
	$output = $output[0];

	if(!printErrors($errors)) {
		printBack($output);
		store($output);
	}
}

if($users = fetch()) {
	print "<ul class=latest>";
	foreach(latest($users) as $u) {
		if($u)
			printf("<li>Name: %s -- reddit username: %s -- Age: %d</li>",
				$u["name"], $u["reddit"], $u["age"]);
	}
	print "<li><a href='?fuckit'>clear history</a></li>";
	print "</ul>";
}
?>
	<form action="" method="post"><br>
		<input type="text" class="text" value="" name="name" />
		<label for="name">Your name?</label><br>
		<input type="text" name="age" value="" />
		<label for="age">Your age?</label><br>
		<input type="text" class="text" value="" name="reddit" />
		<label for="reddit">Your reddit username?</label><br>
		<input type="submit" class="submit" value="Go" name="" />
	</form>
</body>
</html>
	<?php if(isset($_GET["fuckit"])) { // Remove the data file and redirect
	unlink("data");
	header("Location: ./1.php");
	}
	?>

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8" />
	<title>Reddit DB</title>
	<style>form:before{ content:"Input"; font-size:1.5em; } form{ background: #DDD; } ul,form{ padding: 1em; list-style-type:none; max-width:30%; margin:0 auto; } ul{ border-bottom: 1px solid #999; } ul:first-child,form:first-child{ margin-top:10em; } ul.errors{ background:#FDD; } ul.errors:before{ content:"Error!"; font-size: 1.5em; color:#F00; } ul.output{ background:#DFD; } ul.output:before{ content:"Output"; font-size: 1.5em; color:#090; } ul.latest{ background:#DDF; } ul.latest:before{ content:"Latest users"; font-size:1.5em; color:#00F; } li a { color: #666; text-decoration:none; font-family: sans-serif; font-size: 0.8em; float: right; } </style>
	</head>

	<body>

	<?php
	function validate($input) {
	$output = array();
	$errors = array();
	foreach($input as $key => $value) {
	if($key == "age") {
	$age = (int)$value;

	if($age == 0)
	$errors[] = "Invalid age";
	else
	$output["age"] = $age;
	}

	else if(strlen($value) < 1)
	$errors[] = "Invalid $key";
	else
	$output[$key] = filter_var($value,FILTER_SANITIZE_SPECIAL_CHARS);
	}

	return array($output,$errors);
	}

	function printErrors($errors) {
	$out = "";
	foreach($errors as $e)
	$out .= "<li>$e</li>\n";

	if(strlen($out) > 0) {
	print("<ul class=errors>$out</ul>");
	return true;
	}
	return false;
	}

	function printBack($output) {
	$out = "";
	foreach($output as $k => $v) {
	if($k == "reddit")
	$k = "$k username ";
	$out .= "<li>Your $k is $v</li>\n";
	}
	print("<ul class=output>$out</ul>");
	}

	function store($output) {
	file_put_contents("data",serialize($output)."\n",FILE_APPEND);
	}

	function fetch() {
	$fname = "data";
	if($file = @file_get_contents($fname)) {
	$lines = explode("\n",$file);
	$users = array();
	foreach($lines as $l) {
	$users[] = unserialize($l);
	}
	return($users);
	}
	return false;
	}

	function latest($users) {
	$users = array_reverse($users);
	return array_slice($users,0,5);
	}

	if(!empty($_POST)) {
	$output = validate($_POST);
	$errors = $output[1];
	$output = $output[0];

	if(!printErrors($errors)) {
	printBack($output);
	store($output);
	}
	}

	if($users = fetch()) {
	print "<ul class=latest>";
	foreach(latest($users) as $u) {
	if($u)
	printf("<li>Name: %s -- reddit username: %s -- Age: %d</li>",
	$u["name"], $u["reddit"], $u["age"]);
	}
	print "<li><a href='?fuckit'>clear history</a></li>";
	print "</ul>";
	}
	?>
	<form action="" method="post"><br>
	<input type="text" class="text" value="" name="name" />
	<label for="name">Your name?</label><br>
	<input type="text" name="age" value="" />
	<label for="age">Your age?</label><br>
	<input type="text" class="text" value="" name="reddit" />
	<label for="reddit">Your reddit username?</label><br>
	<input type="submit" class="submit" value="Go" name="" />
	</form>
	</body>
	</html>