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getenv() vs. $_ENV in PHP

... According to the php documentation about getenv, they are exactly the same, except that getenv will look for the variable in a case-insensitive manner. Most of the time it probably doesn't matter, but one of the comments on the documentation...
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Saving image from PHP URL

I need to save an image from a PHP URL to my PC. Let's say I have a page, http://example.com/image.php , holding a single "flower" image, nothing else. How can I save this image from the URL with a new name (using PHP)? ...
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How to validate an Email in PHP?

How can I validate the input value is a valid email address using php5. Now I am using this code 7 Answers ...
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Laravel requires the Mcrypt PHP extension

...web enabled extensions and command line enabled extensions can differ. Run php -m in your terminal and check to see if mcrypt is listed. If it's not then check where the command line is loading your php.ini file from by running php --ini from your terminal. In this php.ini file you can enable the e...
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How to get current time in milliseconds in PHP?

...e in seconds since the Unix epoch accurate to the nearest microsecond (see PHP reference). It's actually very easy to test if you run the above code in a loop and display the milliseconds. – laurent Dec 18 '12 at 10:08 ...
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How can javascript upload a blob?

...fd.append('data', soundBlob); $.ajax({ type: 'POST', url: '/upload.php', data: fd, processData: false, contentType: false }).done(function(data) { console.log(data); }); You need to use the FormData API and set the jQuery.ajax's processData and contentType to false. ...
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Pass a PHP string to a JavaScript variable (and escape newlines) [duplicate]

What is the easiest way to encode a PHP string for output to a JavaScript variable? 14 Answers ...
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Upgrading PHP in XAMPP for Windows?

I would like to know how you upgrade PHP in Xampp for Windows? I tried to download the latest PHP version from the main PHP site but when I check (phpinfo) I still get that the previous version is still in use. ...
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?: operator (the 'Elvis operator') in PHP

I saw this today in some PHP code: 5 Answers 5 ...
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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!

...ard、sysadmin api、插件扩展、对topic或session或clientid的tracing调试等高级功能,大大简化服务器端的开发工作量。实际应用中,只需要写发布和订阅接口函数即可,中间过程对应用开发人员透明。12. 可以通过MQTT over websocket来穿越防...