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Why doesn't this code simply print letters A to Z?

... From the docs: PHP follows Perl's convention when dealing with arithmetic operations on character variables and not C's. For example, in Perl 'Z'+1 turns into 'AA', while in C 'Z'+1 turns into '[' ( ord('Z') == 90, ord('[') == 91 ). Note th...
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【App Inventor 2 数据可视化】使用柱状图和饼图收集数据 - App应用开发 - ...

...理解。帮助人们一眼就能看到他们在生活或社区中关心的问题发生了什么。你喜欢用哪些不同方式的图像和图形来理解数据?所有的数据都留在App中,直到你按下Reset按钮。在本系列中,你可以查看以下指南,了解如何将数据发送...
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How to get a cross-origin resource sharing (CORS) post request working

...where example.com is hosted), set these headers (added some sample code in PHP): header('Access-Control-Allow-Origin: https://not-example.com'); header('Access-Control-Allow-Credentials: true'); header('Access-Control-Max-Age: 604800'); header("Content-type: application/json"); $array = array("ok" ...
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How to do a GitHub pull request

...y on Github's website. $ git clone https://github.com/tim-peterson/dwolla-php.git $ cd dwolla-php $ git remote add upstream https://github.com/Dwolla/dwolla-php.git $ git fetch upstream // make your changes to this newly cloned, local repo $ git add . $ git commit -m '1st commit to dwolla' $ git p...
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What does $$ (dollar dollar or double dollar) mean in PHP?

... It's a variable's variable. <?php $a = 'hello'; $$a = 'world'; // now makes $hello a variable that holds 'world' echo "$a ${$a}"; // "hello world" echo "$a $hello"; // "hello world" ?> ...
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一个科技公司只是碰巧卖起了披萨? - 资讯 - 清泛网 - 专注C/C++及内核技术

...擎。无论达美乐将来想去卖汉堡还是卖卷饼,貌似都不成问题。 善用社交媒体进行病毒传播 达美乐不仅用科技手段在提升用户订餐体验上受益匪浅,更在消费最活跃的社交媒体上给自己铺了一条金光大道:它经常在社交媒体...
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Java associative-array

How can I create and fetch associative arrays in Java like I can in PHP? 15 Answers 15...
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Why would json_encode return an empty string

I have a simple php structure with 3 nested arrays. 13 Answers 13 ...
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The $.param( ) inverse function in JavaScript / jQuery

...field[0] = Array [ "a", "b", "c" ]. This is the behaviour as expected from PHP. @JackyLi's solution does take care of that. – cars10m Aug 5 '16 at 13:38 ...
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How do I prevent a Gateway Timeout with FastCGI on Nginx

...t_timeout 300s; fastcgi_send_timeout 300s; fastcgi_read_timeout 300s; In php file in the case 127.0.0.1:9000 (/etc/php/7.X/fpm/pool.d/www.conf) modify: request_terminate_timeout = 300 I hope help you. share | ...