a php exteions for bsdiff

Install:

phpize 
./configure --with-php-config=/usr/bin/php-config 
make  
make install 

Example:

<?php
ini_set('memory_limit', '700M');
set_time_limit(0);
error_reporting(E_ALL);

if (bsdiff_diff("old.apk", "new.apk", "apk.patch")) {
        echo "bdiff success.\n";
} else {
        echo "bdiff faild.\n";
}

if (bsdiff_patch("old.apk", "apk.patch", "a.new.apk")) {
        echo "bpatch success.\n";
} else {
        echo "bpatch faild.\n";
}
?>

====== http://www.daemonology.net/bsdiff/