Recent snippets posted on Snipplr.com https://snipplr.com/ Tue, 09 Jun 2026 12:53:46 +0000 https://snipplr.com/view/24700/fastest-way-to-validate-a-path-with-a-list-of-extensions <p>Here is the research of running the scripts 10000 times, in milliseconds: preg_match('/.*\.(jpg|gif|png)\z/',substr('the image/is on/fire.jpg,-4')) 0.29-0.27 in_array(strtolower(substr('the image/is on/fire.jpg',-3)), array('jpg','gif','png')) 0.03-0.025 switch (strtolower(substr('the image/is on/fire.jpg',-3))){ case 'jpg': case 'gif': case 'png': $ec = true; }//use $ec for return statement 0.019-0.14</p> Sun, 13 Dec 2009 08:35:59 UTC https://snipplr.com/view/24700/fastest-way-to-validate-a-path-with-a-list-of-extensions https://snipplr.com/view/24698/regex-extension-comparer <p>I whipped this up after finding that my worst fears were true, pathinfo is slow. Top that with in_array and you've got your self some heavy code. Nothing like regex to speed things up. This little code checks the extension of a path to see if it is a desired extension. EDIT: the regex engine kills any speed benefits...</p> Sun, 13 Dec 2009 08:02:57 UTC https://snipplr.com/view/24698/regex-extension-comparer