I have this code:  <script type="text/javascript">     var foo = 'bar';     <?php         file_put_contents('foo.txt', ' + foo + ');     ?>      var baz = <?php echo 42; ?>;     alert(baz); </scr...

This question already has an answer here:                           How do I pass variables and data from PHP to JavaScript?                                      18 answers                                     What is the easiest way to encode a...

I want to implement a simple file upload in my intranet-page, with the smallest setup possible.  This is my HTML part:  <input id="sortpicture" type="file" name="sortpic" /> <button id="upload">Upload<...

I'm working on a generative art project where I would like to allow users to save the resulting images from an algorithm. The general idea is:   Create an image on an HTML5 Canvas using a generative algorithm When the image is completed, allow...

I want to send an  "ajax download request" when I click on a button, so I tried in this way:  javascript:  var xhr = new XMLHttpRequest(); xhr.open("GET", "download.php"); xhr.send();   download.php:  <? header("Cache...

How can I convert a PHP array in a format like this  Array (     [0] => 001-1234567     [1] => 1234567     [2] => 12345678     [3] => 12345678     [4] => 12345678     [5] => AP1W3242     [6] => AP7X1234     [7] => AS1234...

I'm using Nihilogic's "Canvas2Image" JavaScript tool to convert canvas drawings to PNG images.  What I need now is to turn those base64 strings that this tool generates, into actual PNG files on the server, using PHP.  In short, wha...

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