AnonymousFox

/home/zrcdevco/www/QR-Code/qr-urls/qr-encode-input.php

<?php
//
// Update to take in two parameters - URL and Image name 
// from a form and then output the image to the screen as a result.
include('phpqrcode/qrlib.php');
function test_input($data) {
  $data = trim($data);
  $data = stripslashes($data);
  $data = htmlspecialchars($data);
  return $data;
}
// define variables and set to empty values
$url_value = $image_name = "";

if ($_SERVER["REQUEST_METHOD"] == "GET") {
  if (empty($_GET["url_value"])) {
    $url_value_err = "URL is required";
  } else {
    $url_value = test_input($_GET["url_value"]);
	if (!preg_match("/\b(?:(?:https?):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%=~_|]/i",$url_value)) {
	  $url_value_err = "Invalid URL";
	}
  }
  if (empty($_GET["image_name"])) {
	// no image_name provided, use default
    $image_name = "qr_image.png";
  } else {
    $image_name = test_input($_GET["image_name"]);
  }
// outputs image directly into browser, as PNG stream
QRcode::png($url_value,$image_name,QR_ECLEVEL_L,7);
?>
<img src="<?php echo $image_name;?>" alt="QR Code for URL - <?php echo $url_value;?>">
<?php
}
else
{
	?>
	<html>
	<body>

<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="GET">
	URL: <input type="text" name="url_value" value="<?php echo $url_value;?>">
	<span class="error">* <?php echo $url_value_err;?></span>
	<br>
	Image Name: <input type="text" name="image_name" value="<?php echo $image_name;?>"><br>
	<input type="submit">
	</form>

</body>
	</html>
	<?php
}