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How are echo and print different in PHP? [duplicate]
... there any major and fundamental difference between these two functions in PHP?
5 Answers
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Creating a config file in PHP
I want to create a config file for my PHP project, but I'm not sure what the best way to do this is.
10 Answers
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How to destroy an object?
...It will stay there, however if you unset the object and your script pushes PHP to the memory limits the objects not needed will be garbage collected. I would go with unset() (as opposed to setting it to null) as it seems to have better performance (not tested but documented on one of the comments fr...
Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...ail解决方案搭建邮件服务器全攻略，以及搭建过程中常见问题的解决方法汇总。首先通过一幅图看看整个解决方案的原理：
当用户通过extmail登陆时，首先extmail先去通过mysql进行虚拟用户认证，当认证通过时，postfix通过Cyrus-SASL...
PHP Fatal error: Call to undefined function json_decode()
Apache is logging PHP Fatal error: Call to undefined function json_decode() . After some googling, it seems this problem is a result of not having the latest version of php. Oddly, running php --version ouputs
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Why can't I access DateTime->date in PHP's DateTime class?
...ilable is actually a side-effect of support for var_dump() here – derick@php.net
For some reason, you're not supposed to be able to access the property but var_dump shows it anyways. If you really want to get the date in that format, use the DateTime::format() function.
echo $mydate->format(...
php 获取操作系统、浏览器版本信息（持续更新） - 更多技术 - 清泛网 - 专...
php 获取操作系统、浏览器版本信息（持续更新）有时我们需要在服务器端收集用户操作系统版本，以及用户使用何种浏览器等信息，本文主要提供getOS、getBrowser、getBrowserVer三个方法，对网上各方法进行测试汇总整理，持续更新...
Performance of foreach, array_map with lambda and array_map with static function
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FWIW, I just did the benchmark since poster didn't do it. Running on PHP 5.3.10 + XDebug.
UPDATE 2015-01-22 compare with mcfedr's answer below for additional results without XDebug and a more recent PHP version.
function lap($func) {
$t0 = microtime(1);
$numbers = range(0, 1000000);
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Back to previous page with header( “Location: ” ); in PHP
...title of this question kind of explains my question. How do I redirect the PHP page visitor back to their previous page with the header( "Location: URL of previous page" );
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Better way to check variable for null or empty string?
Since PHP is a dynamic language what's the best way of checking to see if a provided field is empty?
10 Answers
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