Sunday, July 4, 2010

PHP HTTP compression (gzip)

Hosting your PHP web application on server that doesn’t have compression enabled at the web server level? No worries, enable compression in your application by placing this code at the top of your page:

  <?php
ob_start("ob_gzhandler");
?>

http://php.net/manual/en/function.ob-gzhandler.php

ob_gzhandler() is intended to be used as a callback function for ob_start() to help facilitate sending gz-encoded data to web browsers that support compressed web pages. Before ob_gzhandler() actually sends compressed data, it determines what type of content encoding the browser will accept ("gzip", "deflate" or none at all) and will return its output accordingly. All browsers are supported since it's up to the browser to send the correct header saying that it accepts compressed web pages. If a browser doesn't support compressed pages this function returns FALSE.

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Related posts:
http://dandar3.blogspot.com/2010/04/http-compression.html

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