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See changes to a specific file using git

...short value. For example, to find out who changed foo to bar in dist/index.php, you would use git blame dist/index.php | grep bar – Kraang Prime May 11 '17 at 15:38 add a comm...
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On delete cascade with doctrine2

..., you configure the @JoinColumn with the onDelete="CASCADE" option. <?php namespace Entities; use Doctrine\Common\Collections\ArrayCollection; /** * @Entity * @Table(name="contacts") */ class Contact { /** * @Id * @Column(type="integer", name="contact_id") * @Gener...
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PHP Multidimensional Array Searching (Find key by specific value)

...oossible solution is based on the array_search() function. You need to use PHP 5.5.0 or higher. Example $userdb=Array ( (0) => Array ( (uid) => '100', (name) => 'Sandra Shush', (url) => 'urlof100' ), (1) => Array ( (uid) => '5465', ...
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Is there a built-in function to print all the current properties and values of an object?

So what I'm looking for here is something like PHP's print_r function. 25 Answers 25...
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微博为什么限制140字(附短信70字限制考) - 闲聊区 - 清泛IT社区,为创新赋能!

问题的提出申请过那么多的微博,数申请网易微博的动机最不纯,因为它的字数限制不是传说中的140字,而是163个字。当年觉得很可爱,于是就注册了,之后再也没登录过。今天在人人网转发状态,提示我超过140字了,突然就好...
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为何谷歌不可复制? - 资讯 - 清泛网 - 专注C/C++及内核技术

...可使用并从中受益,那么糟糕的广告(即信息)就自然是个问题了。因此,即使牺牲周末时间,他们也决定解决这个问题。” 谷歌之所以成为后德鲁克时代最具代表性的公司,除了两位创始人的学院派的作风外,谷歌公司也延续...
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各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术

...件尾后,即文件原先的内容会被保留。 导航: 一、PHP 二、C# 三、C 3.1、fgets、fputs文本读写 3.2、fread、fwrite二进制读写 四、C++ 五、Java PHP读写文件: // 写文件 $fp = fopen("log.txt", "a"); fwrite($fp, $str); fclose(...
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社会化海量数据采集爬虫框架搭建 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...果能把账号和IP的访问策略控制好了,基本可以解决这个问题了。当然对方网站也会有运维会调整策略,说到底这是一个战争,躲在电脑屏幕后的敌我双方,爬虫必须要能感知到对方的反监控策略进行了调整,通知管理员及时处...
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移动前端开发之viewport的深入理解 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...是,devicePixelRatio在不同的浏览器中还存在些许的兼容性问题,所以我们现在还并不能完全信赖这个东西,具体的情况可以看下这篇文章。 devicePixelRatio的测试结果: 三、PPK的关于三个viewport的理论 ppk大神对于移动设备上...
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JQuery: 'Uncaught TypeError: Illegal invocation' at ajax request - several elements

...instead of its value, which is actually what I wanted to do (in fact in my php code I need that value as a foreign key for querying my cities table and filter correct entries). So, instead of: var data = { 'mode': 'filter_city', 'id_A': e[e.selectedIndex] }; it should be: var da...