How Much Expensive IF ELSE Statement is in PHP [closed]

How Much Expensive IF ELSE Statement is in PHP [closed]

References

Reference NO 1

http://stackoverflow.com/questions/15201091/how-much-expensive-if-else-statement-is-in-php

Reference NO 2

http://phplens.com/lens/php-book/optimizing-debugging-php.php

Reference NO 3

http://www.phptherightway.com/

Reference NO 4

http://www.sans.org/tip_of_the_day.php

Reference NO 5

http://en.wikibooks.org/wiki/Ada_Programming/Control

Reference NO 6

http://php.net/manual/en/function.session-start.php

Reference NO 7

http://me.veekun.com/blog/2012/04/09/php-a-fractal-of-bad-design/

Reference NO 8

http://www.codinghorror.com/blog/2008/05/php-sucks-but-it-doesnt-matter.html