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Archive for the ‘php’ Category

method_exists() vs. is_callable()

Sunday, January 3rd, 2010

One thing I often see when re-factoring PHP applications, is the improper use of the method_exists() function, and I think this needs a little bit of clarification.
(more…)

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Posted in php5, tips and tricks | 4 Comments »

Improving performance with return values caching

Wednesday, February 4th, 2009

Many functions (and methods) in a project will often provide the same return value for the same arguments, like:

  • mathematical functions:
function SomeMaths($x)
{
	return $x + pow($x, 3.2) - cos($x);
}
  • functions which retrieve content from a file:

(more…)

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Posted in concepts and principles, design patterns, php, tips and tricks | 5 Comments »

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