Zobrazení zdroje stránky Příručka stylu psaní

Pro inspiraci:
*http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml
*http://www.kernel.org/doc/Documentation/CodingStyle
*http://en.wikipedia.org/wiki/Indent_style#K.26R_style]

==Static vs. normal methods/members/variables==

*Static class members require longer syntax when used 
*In PHP, static is slower (see http://stackoverflow.com/questions/1472721/php-performance-of-static-methods-vs-functions).

Try this example:
 <?php	
  class Normal {
 		public $x=0;
 	}
  	
 	class Statik {
 		public static $x=0;
 	}
  	
 	$limit=50000;
 	$mem1=memory_get_usage();
 	$time1=microtime(true);
 	$normal=new Normal();
 	echo "Normal object test:<br/>";
  	
 	for ($i=0; $i<$limit; $i++) {
 	 $normal->x=$normal->x+$i; 
  	
 	}
 	echo $normal->x."<br/>";
  	
 	$mem2=memory_get_usage();
 	$time2=microtime(true);
  	
 	echo "Static object test:<br/>";
  	
 	for ($i=0; $i<$limit; $i++) {
 	 Statik::$x=Statik::$x+$i; 
 	}
  	
 	echo Statik::$x."<br/>";
  	
 	$mem3=memory_get_usage();
 	$time3=microtime(true);
 		
 	printf("Normal: Memory=%d time=%f<br/>", $mem2-$mem1, $time2-$time1);
 	printf("Static: Memory=%d time=%f<br/>", $mem3-$mem2, $time3-$time2);
 	?>

Result
 Normal: Memory=728 time=0.049930
 Static: Memory=220 time=0.057258