PHP cow and zval container

... What is cow (copy on write)? This is a memory optimization method of PHP, which can save the waste of memory space. We can look at the following example. <?php $a = range(0,20); var_dump(memory_get_usage()); $b = $a; var_dump(memory_get_usage()); $b = range(0,20); var_dump(memory_get...


Mall price range

... <?php /** * */ Class Goods { /** * @brief calculates the price range of the item * @param $min minimum price * @param $max maximum price * @param $showPriceNum shows the maximum number of groups * @return array Price interval grouping */ public function getGoodsPrice($min,$max,...


The Drupal configuration that everyone next door needs to know

... i春秋作者:Arizona The Drupal configuration that everyone knows next door Drupal is an open source PHP content management system with a fairly complex architecture. It also has a powerful security model. Thanks to the contributions and maintenance of developers in the community, so there are...


Php upload file

... php upload file 1, scenario description: we will always use the upload file during the development process, in fact, a method can be used to upload the file. 2, the program Code: 1, first get the uploaded file content from the form form: Note: When uploading a file, the attribute of the...


After TP5.1 is installed using phpexcel

... , the windows DOS command enters the current website directory. For example, if my website name is tp5.1, then go directly to this directory composer require phpoffice/phpspreadsheet composer require phpoffice/phpexcel and enter these two commands. is called directly at the top of the...


Php get this Monday, this Sunday, last Monday, last Sunday, this month, the last day of the month, the last day of the month, th

... <?php //本周一 echo date('Y-m-d', (time() - ((date('w') == 0 ? 7 : date('w')) - 1) * 24 * 3600)); //w为星期几的数字形式,这里0为周日 //本周日 echo date('Y-m-d', (time() + (7 - (date('w') == 0 ? 7 : date('w'))) * 24 * 3600)); //同样使用w,以现在与周日相关天数算 //上周一 echo date('Y-m-d', strtotime('-1 monday', time())); //...


ECTOUCH SMS interface replacement

... ECTouch system is a free and open source mobile phone mall system, using international standard HTML5 + CSS3 research and development, easy for secondary development, Xiaobian is relatively familiar with this software, today Xiaobian to replace The SMS interface is a step by step guide...


How to get started with CTF

... I don't know where to find it, maybe it's about it, put it here. Thanks for the editorial content, this is reproduced. Some people recently asked questions about how to get started with ctf. Don't rush to step into the sky, don't think ctf is very complicated. In fact, the introduction...


10 PHP Bitcoin open source projects

... If you are a Pher, if you want to learn blockchain, then this article lists 10 open source Php bitcoin projects that will help you understand in your own applications How to add support for Bitcoin. If you want to quickly master the way to use Bitp to dock Bitcoin wallet, you can visit...


HDU 1728 Escape from the maze

... 题链接: Portal Problem Description gives a maze of m × n (m rows, n columns), there are two positions in the maze, gloria wants to go from one position of the maze to another A position, of course, some places in the maze are open spaces, gloria can pass, some places are obstacles, she...