I'm trying to get some screenshot using php-driver. And it appears that despite taking the picture of the entire web page, it just taking the picture that appears on the monitor/screen (that's why we call it screenshot).
So my question is how to capture a picture that located in the bottom of the page? Do we scroll the page to the specified element? or there is a way to take the picture of the entire page?
This is my screenshot code:
$host = 'http://localhost:4444/wd/hub'; // this is the default
$capabilities = DesiredCapabilities::firefox();
$webdriver = RemoteWebDriver::create($host, $capabilities, 5000);
function find_image($url) {
//Screenshot
$GLOBALS["webdriver"]->get($url);
$element = $GLOBALS["webdriver"]->findElement(WebDriverBy::cssSelector('#law > p > img'));
$element_width = $element->getSize()->getWidth();
$element_height = $element->getSize()->getHeight();
$element_x = $element->getLocation()->getX();
$element_y = $element->getLocation()->getY();
$screenshot = __DIR__ . "/number/" . count($GLOBALS["data"]) . ".png";
$GLOBALS["webdriver"]->takeScreenshot($screenshot);
$src = imagecreatefrompng($screenshot);
$dest = imagecreatetruecolor($element_width, $element_height);
imagecopy($dest, $src, 0, 0, $element_x, $element_y, $element_width, $element_height);
imagepng($dest, $screenshot);
return convert_image($screenshot);
}
As you say, you can't take a screenshot of anything more than is on the current screen. But you can scroll the window to the bottom of the page.
$this->webDriver->executeScript('window.scrollTo(0,document.body.scrollHeight);');
$this->webDriver->takeScreenshot("a.png");
I use an instance variable for the webDriver, using GLOBALS isn't a particularly good way of using it (IMHO).
You can pass it in as a variable, or use it as a parameter to a constructor if using a class.
Below is the code that I am using to grab the screen shot of the entire webpage.
reference stackoverflow link (Website screenshots using PHP)
When I run this script from browser, All I get is a blank black image and not the screen shot of the webpage. Any help is greatly appreciated. Thanks!
<?php
header('Content-Type: image/jpeg');
$Browser = new COM('InternetExplorer.Application');
$Browserhandle = $Browser->HWND;
$Browser->Visible = true;
$Browser->Fullscreen = true;
$Browser->Navigate('http://google.com');
while($Browser->Busy){
com_message_pump(4000);
}
$img = imagegrabwindow($Browserhandle, 0);
$Browser->Quit();
imagejpeg($img, 'screenshot3.jpg');
?>
According to php.net ( http://php.net/manual/en/function.imagegrabwindow.php ):
the imagegrabwindow function "is only available on Windows."
Alright so first things first:
I've searched over this site for 6+ hours and I keep coming up with the same results. The main answer I keep getting is: How to Generate Barcode using PHP and Display it as an Image on the same page
But this is not working for me. Even the answer on that page that was accepted ends with "After you have added all the codes, you will get this way:" which is so vague I feel like I'm supposed to already be an expert to understand it. I'm getting frustrated with this problem because I cannot seem to find any "moron directions" that can help me understand how everything works in this library for barcode generator for php.
Here is what I have:
I'm using fpdf to print a pdf file which works great!
Page Name: PrintMyPDF.php
<?php
//error_reporting(E_ALL);
//ini_set('display_errors', 1);
$thisorderID = $_GET['Xort'];
require ('UFunctions.php');
if (trim($thisorderID) == ""){
$value = '0';
}
if (!is_digit($thisorderID) || $thisorderID < 0)
{
header('Location:ErrorInt.php');
exit;
}
//Database connection established
require_once('DBASEConnector.php');
$sql2 = "SELECT users.name, users.storenum, users.storename, Orders.OrderID, Orders.name
FROM users, Orders
WHERE Orders.name = users.name
AND Orders.OrderID = '$thisorderID'";
$result = $db->query($sql2);
$row = $result->fetch_assoc();
$ThisStoreNum = $row['storenum'];
$ThisStoreName = $row['storename'];
require('fpdf.php');
$pdf = new FPDF();
//$fpdf->SetMargins(0, 0, 0);
//$fpdf->SetAutoPageBreak(true, 0);
$pdf->SetAuthor('Walter Ballsbig');
$pdf->SetTitle('Order Form');
$pdf->SetFont('Helvetica','B',16);
$pdf->SetTextColor(0,0,0);
$pdf->AddPage('P');
$pdf->SetDisplayMode(real,'default');
$pdf->SetXY(50,20);
$pdf->SetDrawColor(0,0,0);
$pdf->Cell(100,10,'Order Form',1,1,'C',0);
$pdf->SetFontSize(10);
$pdf->SetX(50);
$pdf->Cell(100,10, 'Order: '.$thisorderID.' | Store: '.$ThisStoreNum.'-'.$ThisStoreName,1,1,'C',0);
$pdf->SetXY(10,50);
$pdf->SetFontSize(12);
$pdf->Cell(6,6,'X',1,0,'C',0);
$pdf->Cell(14,6,'QTY',1,0,'C',0);
$pdf->Cell(130,6, 'ITEM',1,0,'C',0);
$pdf->Cell(30,6, 'UNIT',1,1,'C',0);
$query = "SELECT Inventory.ProductI, Inventory.ProductName, Inventory.CurrentQty, Inventory.Pull, Inventory.Unit, OrderItems.ProductI, OrderItems.QtyO, OrderItems.OrderI
FROM Inventory, OrderItems
WHERE OrderItems.OrderI = '$thisorderID'
AND OrderItems.ProductI = Inventory.ProductI
ORDER BY Inventory.Pull, Inventory.ProductName";
$result = $db->query($query);
$num_results = $result->num_rows;
for ($i=0; $i <$num_results; $i++)
{
$row = $result->fetch_assoc();
$pdf->SetFontSize(12);
IF ($row['CurrentQty'] <=0)
{
$pdf->SetFontSize(10);
$pdf->Cell(6,6,'BO',1,0,'C',0);
$pdf->SetFontSize(12);
}else{
$pdf->Cell(6,6,' ',1,0,'C',0);
}
$pdf->Cell(14,6, $row['QtyO'],1,0,'C',0);
$pdf->Cell(130,6, $row['ProductName'],1,0,'L',0);
$pdf->Cell(30,6, $row['Unit'],1,1,'C',0);
}
$pdf->Output();
$db->close();
?>
This prints up my pdf beautifully! Now I wanted to add a barcode on the page that will represent the order number for scanning purposes.
Now here is what I have for my code that contains the barcode... code.
Name of barcode page: BarCodeIt.php
<?php
function BarCodeIt($MyID) {
// Including all required classes
require_once('./class/BCGFontFile.php');
require_once('./class/BCGColor.php');
require_once('./class/BCGDrawing.php');
// Including the barcode technology
require_once('./class/BCGcode39.barcode.php');
// Loading Font
$font = new BCGFontFile('./font/Arial.ttf', 18);
// Don't forget to sanitize user inputs
$text = isset($_GET['text']) ? $_GET['text'] : $MyID;
// The arguments are R, G, B for color.
$color_black = new BCGColor(0, 0, 0);
$color_white = new BCGColor(255, 255, 255);
$drawException = null;
try {
$code = new BCGcode39();
$code->setScale(2); // Resolution
$code->setThickness(30); // Thickness
$code->setForegroundColor($color_black); // Color of bars
$code->setBackgroundColor($color_white); // Color of spaces
$code->setFont($font); // Font (or 0)
$code->parse($text); // Text
} catch(Exception $exception) {
$drawException = $exception;
}
/* Here is the list of the arguments
1 - Filename (empty : display on screen)
2 - Background color */
$drawing = new BCGDrawing('', $color_white);
if($drawException) {
$drawing->drawException($drawException);
} else {
$drawing->setBarcode($code);
$drawing->draw();
}
//Header that says it is an image (remove it if you save the barcode to a file)
header('Content-Type: image/png');
header('Content-Disposition: inline; filename="barcode.png"');
// Draw (or save) the image into PNG format.
$drawing->finish(BCGDrawing::IMG_FORMAT_PNG);
}
?>
Now in my PDF file just before this line:
$pdf->Output();
I have added this:
$pdf->AddPage('P');
$pdf->SetDisplayMode(real,'default');
require('/BarCodeIt.php');
$MyBarCode = BarCodeIt($thisorderID);
echo $MyBarCode;
But what it does is all of my other pdf elements disappear and I'm left with only a big barcode (the right one! that part works) but that's all that is on the screen. It's like when the barcode section runs it negates everything else and just prints the barcode. I want to print just the barcode where I want it on the PDF but I'm not clever enough to figure out what I'm doing wrong. Any help on this would be greatly appreciated.
In $pdf->SetDisplayMode(real,'default');, real is not an identifier. I believe you've forgotten the $ prefix.
Have you warnings reporting at maximum level? If not, include:
error_reporting(E_ALL);
in your script and see that it shows additional issues.
I'm not familiar with fpdf, but what you are doing seems wrong just by looking at it: Everywhere you add elements to your pdf by using methods on your $pdf object like $pdf->... and when you want to add the barcode, you echo it out directly.
Don't echo your image out. Instead get rid of the header() calls in your barcode script, save your image and look for the right method to add an image to the $pdf object.
Here is a question with answers that deals with adding an image: Inserting an image with PHP and FPDF
I'm fairly new to PHP. I have a function written to scale an image and save a thumbnail. The function is working (thumbnails being created) but any time it runs the the page loads a blank page with only an empty image tag - I can't view the source of the page (because there isn't one?).
If the function doesn't run the page loads fine.
function scaleImage($id)
{
header("Content-Type: image/jpeg");
$si = imagecreatefromjpeg("img/dribbble/standard_resolution/{$id}.jpg");
$si_x = imagesx($si);
$si_y = imagesy($si);
$di_x = 210;
$di_y = 158;
$di = imagecreatetruecolor($di_x, $di_y);
imagecopyresampled($di, $si, 0, 0, 0, 0, $di_x,
$di_y, $si_x, $si_y);
imagejpeg($di,"img/dribbble/low_resolution/{$id}.jpg",90);
};
Why is the page blank when the function runs and how can I fix this?
Try outputting image without $filename argument: imagejpeg($di, null, 90);
Hello there i have a php file with the included:
The image shows properly when i access the PHP file, however when I try to show it in the HTML template, it shows as the little img with a crack in it, so basically saying "image not found"
<img src="http://konvictgaming.com/status.php?channel=blindsniper47">
is what i'm using to display it in the HTML template, however it just doesn't seem to want to show, I've tried searching with next to no results for my specific issue, although I'm certain I've probably searched the wrong title
adding code from the OP below
$clientId = ''; // Register your application and get a client ID at http://www.twitch.tv/settings?section=applications
$online = 'online.png'; // Set online image here
$offline = 'offline.png'; // Set offline image here
$json_array = json_decode(file_get_contents('https://api.twitch.tv/kraken/streams/'.strtolower($channelName).'?client_id='.$clientId), true);
if ($json_array['stream'] != NULL) {
$channelTitle = $json_array['stream']['channel']['display_name'];
$streamTitle = $json_array['stream']['channel']['status'];
$currentGame = $json_array['stream']['channel']['game'];
echo "<img src='$online' />";
} else {
echo "<img src='$offline' />";
}
The url is not an image, it is a webpage with the following content
<img src='offline.png' alt='Offline' />
Webpages cannot be displayed as images. You will need to edit the page to only transmit the actual image, with the correct http-headers.
You can probably find some help on this by googling for "php dynamic image".
Specify in the HTTP header that it's a PNG (or whatever) image!
(By default they are interpreted as text/html)
in your status.php file, where you output the markup of <img src=... change it to read as follows
$image = file_get_contents("offline.png");
header("Content-Type: image/png");
echo $image;
Which will send an actual image for the request instead of sending markup. markup is not valid src for an img tag.
UPDATE your code modified below.
$clientId = ''; // Register your application and get a client ID at http://www.twitch.tv/settings?section=applications
$online = 'online.png'; // Set online image here
$offline = 'offline.png'; // Set offline image here
$json_array = json_decode(file_get_contents('https://api.twitch.tv/kraken/streams/'.strtolower($channelName).'?client_id='.$clientId), true);
header("Content-Type: image/png");
$image = null;
if ($json_array['stream'] != NULL) {
$channelTitle = $json_array['stream']['channel']['display_name'];
$streamTitle = $json_array['stream']['channel']['status'];
$currentGame = $json_array['stream']['channel']['game'];
$image = file_get_contents($online);
} else {
$image = file_get_contents($offline);
}
echo $image;
I suppose you change the picture dynmaclly on this page.
Easiest way with least changes will just be using an iframe:
<iframe src="http://konvictgaming.com/status.php?channel=blindsniper47"> </iframe>