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Zero-pad digits in string

... There's also str_pad <?php $input = "Alien"; echo str_pad($input, 10); // produces "Alien " echo str_pad($input, 10, "-=", STR_PAD_LEFT); // produces "-=-=-Alien" echo str_pad($input, 10, "_", STR_PAD_BOTH); // produces ...
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Get user info via Google API

...re": "xx", "gender": "xx", "locale": "xx" } To Tahir Yasin: This is a php example. You can use json_decode function to get userInfo array. $q = 'https://www.googleapis.com/oauth2/v1/userinfo?access_token=xxx'; $json = file_get_contents($q); $userInfoArray = json_decode($json,true); $googleEmai...
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理解Python的 with 语句 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...d. One could write something like this to get around this: 这里有两个问题。一是可能忘记关闭文件句柄;二是文件读取数据发生异常,没有进行任何处理。下面是处理异常的加强版本: file = open("/tmp/foo.txt") try: data = file.read() finally: ...
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MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区,为创新赋能!

...泄露告警或控制石油管道阀门的命令,就必须要在网络有问题的情况下也要能确保发送成功。 myriota这家提供物联网数据LEO卫星传输服务的公司,流量报价是1M字节的数据500美元/月。因此,每次传输节省几个字节也能省不少...
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Can linux cat command be used for writing text to file?

...text file: cat > output.txt <<EOF some text some lines EOF For PHP file: cat > test.php <<PHP <?php echo "Test"; echo \$var; ?> PHP share | improve this answer ...
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Detect iPad users using jQuery?

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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CoInitialize浅析一 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...作都在当前线程内部进行,因此也就不存在多线程同步的问题;而对于一些全局信息的修改则都进行了保护。 CoInitialize 浅析
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What is a postback?

... Why does it happen? The web application is running on the web server. In order to process the user’s response, cause the application state to change, or move to a different page, you need to get some code to execute on the web server. The only way to achieve this is to collect up all the informa...
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Check whether a request is GET or POST [duplicate]

... I've experienced environments where PHP doesn't actively set the $_POST global, so I agree that using the above method works much more reliably. – Nathan Crause Jul 5 '17 at 15:52 ...
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How can I open several files at once in Vim?

...mplete the answer with the following suggestion: As a good practice and in order to show how to apply the same set of commands to all files that have been opened, you can execute the following command to apply all the orders contained in my_commands_batch.vim file :argdo source my_commands_batch.vim...