#Javascript file upload example how to#

As of PHP 5.4, theyРІР‚в„ўve done it again with a new set of configuration directives, session.upload_progress. One of the many reasons I love PHP is that it makes seemingly difficult tasks easy. But in the words of Yoda, РІР‚СљNoРІР‚В¦ There is another.РІР‚Сњ It would seem as though all the options are fraught with nuisances and the task has quickly become a headache. Yet another solution is to install the Alternative PHP Cache extension, but that may not be available depending on your hosting environment and it seems like overkill for such a small task such as this. An alternate solution is to rely on a Flash, Java, or ActiveX plugin no thanks, IРІР‚в„ўll pass. Unfortunately, HTML5 still isnРІР‚в„ўt a completed standard yet and isnРІР‚в„ўt uniformly supported across all browsers. JavaScript can access a fileРІР‚в„ўs name, type, and even the width and height of a local image, but it wasnРІР‚в„ўt until HTML5 that it could access a fileРІР‚в„ўs size. On second thought, youРІР‚в„ўd find things arenРІР‚в„ўt quite that simple. Providing a progress indicator gives users useful information and lets them know exactly whatРІР‚в„ўs going on.Р”Р„t first thought, you might think accomplishing this can be done easily by first obtaining the fileРІР‚в„ўs size from the userРІР‚в„ўs computer and then performing some simple calculations against the directory on the server where the file is being uploaded to. Users are impatient they donРІР‚в„ўt want to sit and wait while the browser is doing something and wonder whether it has frozen or if they have a slow connection.

#Javascript file upload example how to#

A problem that has plagued web developers for years is how to add real-time information to their applications, such as a progress bar for file uploads.