I don't know if this is even possible, but I'd appreciate any help.
How do I get the client's DOM width in Laravel?
Basically, is there a way to extract the client's screen width from the $request?
Or are there any functions in Laravel or Blade that will give me a screen width value?
I know that I can get the DOM width with jQuery $(document).width(), but I need the width value on server side; before any js is executed.
#ArturGrigio You can try set JavaScript cookie and access it in Laravel. When user visits your website, get the screen size with JS (window.width) and store it in a cookie screen=WxH
In Laravel $screen = Cookie::get('screen');
$screen = explode("x", $screen);
$width = $screen[0]
$height = $screen[0];
This is 1 solution to do it.
Unfortunately the is no way to get screen size info from PHP.
You can try to play around with User Agent and detect if it is a mobile or desktop or tablet. and make fix sizes for those 3 types.
A good User Agent package for Laravel
I’ve been searching the internet for the past hour, and I didn’t find anything better than hacks and tricks. I didn't even find a good Node.js cross-OS, cross-Browser package to solve this problem...
But to anyone that has a similar question, here is my workaround (even though I still think there might be a better way to achieve the desired outcome, like #Froxz).
Possible Solution:
I used an awesome lazy-load library by Ress.io called LazyLoadXT.
Here is a standard img html tag:
<img src="https://i.stack.imgur.com/5coxi.jpg" width="300px">
Here it is with LazyLoadXT:
<head>
<script src="https://code.jquery.com/jquery-1.12.0.min.js"></script>
<script src="https://ressio.github.io/lazy-load-xt/dist/jquery.lazyloadxt.js"></script>
</head>
<img data-src="https://i.stack.imgur.com/5coxi.jpg" width="300px" src="">
And here it is with LazyLoadXT + JavaScript:
<head>
<script src="https://code.jquery.com/jquery-1.12.0.min.js"></script>
<script src="https://ressio.github.io/lazy-load-xt/dist/jquery.lazyloadxt.js"></script>
</head>
<script>document.write('<img data-src="https://i.stack.imgur.com/5coxi.jpg" width="' + document.documentElement.clientWidth + 'px" src="">')</script>
This is still ajax (which I was trying to avoid), but it is the cleanest solution I was able to think of.
DEMO: jsFiddle
Related
I read about Masonry and after failing to get image appending to work was advised to switch to the successor Isotope. I was trying to improve or create variations on an album cover gallery, something I've done once or twice before using the same PHP classes.
I can get the basic functionality to work, but a button to click to add more images has always failed to work. I keep reading jQuery documentation and I've tried various JavaScript debuggers but I always end up with no images being added to my gallery when I click.
Trial and error is definitely required to get the best looking layout.
The biggest album cover seems to be 500 pixels with the smallest found in APIs was 75, choosing the right column width helps. I'm currently using 75 but 50 might have worked better. I just want to get adding images to work and be done with this little experiment.
I wanted to try something similar to this technique of appending more images to the bottom. I want to append more album covers which I fetch from various APIs (Amazon Product API, Last.fm, iTunes) using PHP. All the album covers come from APIs and I use PHP to find the URLs given the album title and artist. My code is running: http://www.muschamp.ca/Muskie/cdCoverGalleryV4.php
I've changed the CSS rule many times, now I just have the default CSS suggested by the Isotope author.
PHP Code that loops and produces 10 divs with one image per div
$myAlbumCollection->randomMember();
$count = 0;
print('<div id="container">');
while ( $count < 10 )
{
// Check that current album is in Amazon
$buyLink = $myAlbumCollection->currentAlbumAmazonProductURL();
$imageURL = $myAlbumCollection->currentAlbumRandomImageURL();
if ( (strcmp($buyLink, '#') != 0) && (strcmp($imageURL, myInfo::MISSING_COVER_URL) != 0))
{
$count++;
print('<div class="item">');
print('<a href="' . $buyLink . '">');
print('<img src="' . $imageURL . '" />');
print('</a>');
print('</div>');
}
$myAlbumCollection->goToNextAlbum(); // This could loop forever if it doesn't find enough album covers, but in reality will timeout
}
print('</div>');
And lastly here is the javascript, the final problem is in here somewhere:
<script>
$(function(){
var $container = $('#container');
$('#insert a').click(function(){
var $newEls = $.get('./moreAlbumCovers.php');
$container.isotope( 'insert', $newEls );
return false;
});
$container.isotope({
itemSelector: '.item',
masonry: {
columnWidth: 75
}
});
});
</script>
The link gets called when clicked, I've stepped through it. The PHP produces DIVs As and IMG tags. I really am not sure what I'm doing wrong and repeated readings of the documentation isn't solving it. I've never really been a JavaScript guy. I'm not even a PHP guy, it seems right but repeated efforts to make it go have failed despite generous assistance and offering a bounty.
Thanks for the help.
Try adjusting the columnWidh value and width of item. Masonry aligns element with best fit column first layout. It works on mathematical equations. So a perfect, brick wall fitting is only hypothetical ideal case. It takes me a few tries on firebug and other tools to get the masonry working with ideally fitted layout. The key is to get the value of columnWidth and width, gutter etc in such a way that it solves the logic equations in good values.
:: EDIT ::
I found a link saved in my pockets page, of which i totally forgot about. It is a great tutorial. So i came back to give it here. Recommended to everyone who have trouble getting started with this plugin.
http://www.netmagazine.com/tutorials/get-started-jquery-masonry
Masonry isn't a very descriptive name for it. In fact it's an optimizing problem. It's something that is called np problem because there is too many permutations to check. Especially the masonry jquery plugin is a 1d bin-packing solver and it's arrange the bricks in vertical columns. Css by default arrange the bricks in horizontal order. In other words it's a depth-first sort of an adjacent tree model.
Update: Try adding masonry to your dummy div and delete everthing else:
$('#dummy').load('./moreAlbumCovers.php').masonry("reload");
I think you overthink it. The variable is empty because you assign it to a dom object. It's most likely become also an object and not usefull.
It's relly well explained here Jquery Masonry Seamless Responsive Image Grid + I would try to do exactly the same with isotope http://isotope.metafizzy.co/
edit:
I think isoptope and masonry just sorting out 1 dimensional bin packing, and what you are maybe looking after is 2 dimensional bin packing
like this http://codeincomplete.com/posts/2011/5/7/bin_packing/example/ (check complex case it fits all boxes perfectly )
and lib for that https://github.com/jakesgordon/bin-packing/
To get the more brick wall like effect you don't set an item width using CSS. This wasn't crystal clear given the instructions here. But a lot of testing seems to indicate that just specifying a columnWidth and then letting the browser and javascript do it's best gets closer to the performance I'm looking for. Will have to tweak and eventually try appending...
I have created a page in which I am showing A websites Page (situated some where on web );
I used iframe but puzzled with the height issues I solved width issues for 950px only with css3 but my need is full height as target website but that is not working with cross domain pages (I've done with same domain successfully).
Now I want to do it either with PHP using get_file_content() or some other putting it into div , iframe or in frames whatever works (and also pages must be accessible as it is from main sites)
The container will change its content with hyper link click.
Please help me to resolve the issues.
I've tried many more methods including jquery, js, php, css and blah blah blah with no success.
before commenting or answering please visit THIS LINK
I need some thing like this
Please check this and alter here
To See My page Click here
Note:
I have no access of target site so I can't put attributes on target
page and get back to iframe page.
I have 100+ pages to show so no
specific method can be used i need any generalized technology.
One more thing i don't want scrolling in my page.
Efforts done :
Ajax/Jquery
PHP Resize
In the "iframe'd" html, have:
<body onload="parent.resize_iframe(document.body.scrollHeight)">
and in the page that iframes:
<script type="text/javascript">
function resize_iframe(new_height) {
document.getElementById('iframed').style.height = parseInt(new_height, 10) + 60 + 'px';
}
</script>
I used 60px to fix potential padding etc.
Note that they have to be under the same domain for this to work, otherwise you might have to run:
<script type="text/javascript">
document.domain = "domain.com";
</script>
On either or both. This is required so that the browser may interact between them.
Do something like this:
<frameset rows="*">
<frame frameborder=0 src="http://www.discountautoparts.com/" scrolling="auto" noresize>
</frameset>
If you do that it should look like this picture
I have a need for getting preview a url over mouse hover, my application is built on php , js and jquery. Although I have an idea of to get to my requirements but am a little confused with the right approach, i checked all the posted question on here but most of them refer to some third party tools or installables. Frnakly i do not want to use them and think i should try one on my own. Please can you guide me through on the best possible step as per you?
Thanks!
11-Jun-2012
Finally I managed to use Curl and get a preview of the site on a Div placed next to the Link on my site, well now the problem is of fitting the content in the Div ..is there a way that I can adjust the css of the extracted html page in such a way that all the content fits in the fixed height and width of the Div.scaledown option or something? that would scale everything down to the required proportion?
You can do this, in plain ol' CSS and HTML:
.mouseover {
position:absolute;
width:200px;
height:200px;
top:5px;
left:5px;
display:none;
}
.link {
position:relative;
}
.link:hover .mouseover {
display:block;
}
Then, in HTML:
<a href="#" class="link">Link
<div style="background:url('<URL HERE>')" class="mouseover"></div>
</a>
Ok, so you want to get a thumbnail of a webpage and show it on mouse over. To do that, you'll need to either use tools that generate thumbnails or write a PHP script yourself. Here are some tools:
websnapr
Website Thumbnail Generator - This one you can install on your own server
If you want to write your own, check out imagegrabwindow. Note that it requires a Windows server. I don't know if PHP has any other methods to do this. If you're not on a Windows server, you could write a bash script to open a browser and use a screenshot utility to take a screenshot and save it to a file for your website to pick up.
You'll also have to make sure to have some sort of cache so you're not doing this every time every user moves their mouse over a link.
You can use urlbox.io for this, here's an example preview thumbnail of this very URL:
https://api.urlbox.io/v1/ca482d7e-9417-4569-90fe-80f7c5e1c781/32040df25d7c57da28ef4da7ce461af00d852653/png?url=https%3A%2F%2Fstackoverflow.com%2Fquestions%2F10970647%2Fthumbnail-preview-of-a-url-using-php-and-javascript&thumb_width=400
You can see that the options passed into the Urlbox API are simply url, and thumb_width to set the desired width of the thumbnail in pixels, in this case I chose 400 pixels wide.
Now all you got to do is embed it in an <img> tag like so:
<img src="https://api.urlbox.io/v1/ca482d7e-9417-4569-90fe-80f7c5e1c781/32040df25d7c57da28ef4da7ce461af00d852653/png?url=https%3A%2F%2Fstackoverflow.com%2Fquestions%2F10970647%2Fthumbnail-preview-of-a-url-using-php-and-javascript&thumb_width=400"/>
You can use API to do this. For example ApiFlash has a free plan that you can use up to 100 screenshots per month.
Here is how it would look like with PHP:
<?php
$params = http_build_query(array(
"access_key" => "YOUR_ACCESS_KEY"
"url" => "https://example.com",
));
$image_data = file_get_contents("https://api.apiflash.com/v1/urltoimage?" . $params);
file_put_contents("screenshot_api_example.jpeg", $image_data);
?>
The API has a very good uptime because it's based on AWS Lambda.
How can I detect if an iPhone has a retina display or not? Is there a reliable way? Either pure PHP or preferably Zend Framework way of doing this.
i figure it out by this
var retina = window.devicePixelRatio > 1;
if (retina)
{
// the user has a retina display
}
else
{
// the user has a non-retina display
}
You must consider the fact that you are trying to get client side information on the server side.
It would seem that you are unable to detect the display with pure PHP or Zend framework.
It furthermore seems like the UserAgent information from the client, that you might access from PHP is based upon the OS, not the hardware, and thusly does not help you.
You might be interested in reading the following article which much more eloquently and thoroughly explains the issues.
http://www.bdoran.co.uk/2010/07/19/detecting-the-iphone4-and-resolution-with-javascript-or-php/
Good luck!
Javascript: window.devicePixelRatio
I guess as simple thing as display width detection would be sufficient for such a task, retina display packs so many pixels in the width, that simple check will immediately tell you if its an ordinary display or retina display.
PHP does not have such a capability out of a box, but Javascript does.
Here is how :
<script language="Javascript">
<!--
document.write('<br>your resolution is' + screen.width + 'x' + screen.height)
//-->
</script>
I have these two php variables: $img1src and $img2src, (them being PHP is irrelevant as you can echo a php variable anywhere) they both hold a URL of an image. I was wondering if I was able to preload these images, or cache them.
My goal is: when someone refreshes the page I want these pictures to instantly appear in a <img src >.
I'm not going to provide specific code, because I don't want to give you a fish, but rather show how google is a fishing pole.
I googled "php cache images tutorial" just to see what would come up. Below is a great resource.
http://dtbaker.com.au/random-bits/how-to-cache-images-generated-by-php.html
Can't get much better than that.
Caching an image isn't really a job for PHP. PHP should be used to decide whether or not to display it. (There are caching things you can do with PHP, but not in the same sense.) Essentially, what you want to do is make the clients browser request the second image. Once the browser gets the image, it should automatically send an "if-modified-by" parameter in the header. Next time you load the page, the response code should be 304 and your image should load instantly. You can choose from a variety of ways to do this. Load the image with javascript after the page has loaded (to prevent additional load time) or you can just include an image tag that is hidden on the page some where.
I also haven't tested it, but you might be able to send an ajax request to the image directly. I'm not sure if that way would cache it or not.
EDIT:
This isn't the most elegant solution, but it should get the idea across.
JS Example:
<?php
session_start();
if (!isset($_SESSION['graphic'])) $_SESSION['graphic'] = "http://www.tomsfreelance.com/laptop/DSC_0011.JPG";
else $_SESSION['graphic'] = "http://www.tomsfreelance.com/laptop/DSC_0012.JPG";
?>
<html>
<head>
<script>
function loadImage() {
document.getElementById('preload').style.backgroundImage = "url(http://www.tomsfreelance.com/laptop/DSC_0012.JPG)";
}
</script>
</head>
<body onload="loadImage();">
<div id="preload" style="display: none;"></div>
<img src="<?php echo $_SESSION['graphic'];?>">
</body>
</html>
Sure you can, try this javascript:
var image1 = new Image(), image2 = new Image();
image1.src = <?php echo $img1src; ?>;
image2.src = ?<php echo $img2src; ?>;
That should preload the image so when you append an img tag to the DOM the image should appear right away.
If your aim is to make less http requests overall: you can try CSS Sprites and/or Data Url methods of displaying these images. These methods will be the most effective when the images are smaller.