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List of Big-O for PHP functions

After using PHP for a while now, I've noticed that not all built-in PHP functions are as fast as expected. Consider these two possible implementations of a function that finds if a number is prime using a cached array of primes. ...
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PHP global in functions

...alVariablesAreBad How is testing the registry pattern or singleton hard in PHP? Flaw: Brittle Global State & Singletons static considered harmful Why Singletons have no use in PHP SOLID (object-oriented design) share ...
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Performance of foreach, array_map with lambda and array_map with static function

... FWIW, I just did the benchmark since poster didn't do it. Running on PHP 5.3.10 + XDebug. UPDATE 2015-01-22 compare with mcfedr's answer below for additional results without XDebug and a more recent PHP version. function lap($func) { $t0 = microtime(1); $numbers = range(0, 1000000); ...
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Unable to find the wrapper “https” - did you forget to enable it when you configured PHP?

...being said I'll list out exactly everything I've done so far. I am running PHP 5.2.14 with Zend Debugging on the latest Eclipse version on my Windows XP computer. I have a 1 GB of RAM. I have XAMPP running with Apache, MySQL, and FileZilla installed. ...
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How to do error logging in CodeIgniter (PHP)

I want error logging in PHP CodeIgniter. How do I enable error logging? 5 Answers 5 ...
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java中的缓存技术该如何实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...存在于什么地方?3缓存有哪些属性?4缓存介质?搞清楚这4个问题,那么我们就可以随意的通过应用的场景来判断使用何...1、缓存为什么要存在? 2、缓存可以存在于什么地方? 3、缓存有哪些属性? 4、缓存介质? 搞清楚这4个...
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What's the maximum value for an int in PHP?

... work with very big numbers, what's the largest int value you can store in PHP? 8 Answers ...
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LR性能测试结果样例分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...这里出现了404的错误,为什么结果还都通过了。出现这样问题的原因是脚本有些页面的请求内容并非关键点,比如可能请求先前的cookie信息,如果没有就重新获取,所以不会影响最终的测试结果。 图1- 6 HTTP响应摘要 常用的HTT...
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How to minify php page html output?

I am looking for a php script or class that can minify my php page html output like google page speed does. 13 Answers ...
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How to set a cookie for another domain

...get b.com to set the cookie. If a.com redirect the user to b.com/setcookie.php?c=value The setcookie script could contain the following to set the cookie and redirect to the correct page on b.com <?php setcookie('a', $_GET['c']); header("Location: b.com/landingpage.php"); ?> ...