News Feed

News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

Fabien Potencier's Blog:
The PHP Ternary Operator Fast or not?
July 18, 2011 @ 10:35:36

In a new post Fabien Potencier looks at the ternary operator in PHP and wonders which is faster - using it or not (well, sort of...)

People like micro-optimizations. They are easy to understand, easy to apply... and useless. But some time ago, while reviewing pull requests for Twig, I read an interesting discussion about the performance of the ternary operator in PHP (thanks to @nikic for the investigation). Do you know which [example] snippet is the fastest (of course, they do exactly the same)? The right answer is: it depends.

He notes that it's all about the data being worked with. As some of his tests show (testing code included) there does end up being a difference between using it on a small and large dataset. After investigation, it was found that the ternary operator copies (copy-on-write) the value versus an "if" that just evaluates. He also mentions the new "?" version of the ternary syntax in PHP 5.3, but notes it still suffers from the same issue.

0 comments voice your opinion now!
ternary optimize speed dataset copyonwrite

blog comments powered by Disqus

Similar Posts Caching Web Page Output for Server Optimization

John Coggeshall's Blog: Top 30 Scalability Mistakes Slides

International PHP Magazine: IPM Poll Question: How to Speed up Your Site?

Zumba Engineering Blog: Some CakePHP optimizations

Paul Reinheimer's Blog: Memory usage in PHP

Community Events

Don't see your event here?
Let us know!

library release conference wordpress community language voicesoftheelephpant interview opinion series development unittest laravel5 extension podcast api psr7 laravel introduction framework

All content copyright, 2015 :: - Powered by the Solar PHP Framework