A great article and simple way to take advantage os Amazon's Elastic
Beanstalk service even if you don't work in Java. I'm working on
integrating this approach with Eclipse's AWS Toolkit to access all the
server management tasks close to my code. I'l post and update if it
turns ugly.
via PHP on AWS Elastic Beanstalk \| Cameron Stokes's Blog \<http://cameronstokes.com/2011/01/20/php-on-aws-elastic-beanstalk/\>__.
While Amazon claims they’re working on other platforms, initially
Beanstalk only supports Java applications deployed in the Apache
Tomcat 6 container. However…using Quercus, a “100% Java
implementation of PHP 5″ from Caucho, we can run PHP using AWS Elastic
Beanstalk. All it takes is setting up a simple Maven project.
| 1. If a method can be static, declare it static. Speed improvement is
by a factor of 4.
| 2. echo is faster than print.
| 3. Use echo's multiple parameters instead of string concatenation.
| 4. Set the maxvalue for your for-loops before and not in the loop.
| 5. Unset your variables to free memory, especially large arrays.
| 6. Avoid magic like __get, __set, __autoload
| 7. require_once() is expensive
| 8. Use full paths in includes and requires, less time spent on
resolving the OS paths.
| 9. If you need to find out the time when the script started executing,
$_SERVER[‘REQUEST_TIME’] is preferred to time()
| 10. See if you can use strncasecmp, strpbrk and stripos instead of
regex
| 11. str_replace is faster than preg_replace, but strtr is faster than
str_replace by a factor of 4
| 12. If the function, such as string replacement function, accepts both
arrays and single characters as arguments, and if your argument list
is not too long, consider writing a few redundant replacement
statements, passing one character at a time, instead of one line of
code that accepts arrays as search and replace arguments.
| 13. It's better to use select statements than multi if, else if,
statements.
| 14. Error suppression with @ is very slow.
| 15. Turn on apache's mod_deflate
| 16. Close your database connections when you're done with them
| 17. $row[‘id’] is 7 times faster than $row[id]
| 18. Error messages are expensive
| 19. Do not use functions inside of for loop, such as for ($x=0; $x
< count($array); $x) The count() function gets called each time.
| 20. Incrementing a local variable in a method is the fastest. Nearly
the same as calling a local variable in a function.