Tag Archive for 'replacement'

Nginx with PHP as FastCGI on Gentoo Linux

Published
by
Tummblr
on December 7, 2007
in Linux and Web Development
. 9 Comments

Nginx (pronounced “Engine X”) is a high performance web server (and proxy server, but we will be using it as a web server here). In small VPS environments where memory is precious, Apache is at best overkill and uses memory that could be spent elsewhere (like MySQL query caching), at worst a terrible bottleneck that will consistently bring down your site under very moderate loads. If you are willing to live without .htaccess files and Apache-style mod_rewrite rules, Nginx is a great replacement that will lower memory usage and increase performance.

This is a draft. Comments, suggestions, corrections, improvements are very much welcome!

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PHP: speed of string replacement functions

Published
by
Tummblr
on December 2, 2007
in PHP
. 0 Comments

What is the fastest string replacement function in PHP? sprintf() is probably the fastest, but it’s only useful in limited situations where the input is prepared for sprintf formatting. preg_replace() is obviously the slowest. The big debate is whether str_replace() or strtr() is faster.

The lixlpixel PHP benchmarks show that strtr is the faster of the two. I then came across Simple Machine’s benchmarks which show that str_replace() is faster. Hmm what’s going on?

Syridium DV’s PHP benchmarks performs more varied tests with these two functions. The relative speed of these two functions might vary depending on the type of string replacement you are performing. However, it seems that str_replace() is usually a safe bet.