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Is there any difference between __DIR__ and dirname(__FILE__) in PHP?

...7) But, there are at least two differences : __DIR__ only exists with PHP >= 5.3 which is why dirname(__FILE__) is more widely used __DIR__ is evaluated at compile-time, while dirname(__FILE__) means a function-call and is evaluated at execution-time so, __DIR__ is (or, should be) faste...
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Saving timestamp in mysql table using php

... Type safety: FROM_UNIXTIME yields a native mysql date type while php's date() returns a string. – Richard Tuin May 20 '16 at 6:19 ...
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Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir

...want to get the photo of. You can also use HTTPS as well. You can use the PHP's file_get_contents function to read that URL and process the retrieved data. Resource: http://developers.facebook.com/docs/api Note: In php.ini, you need to make sure that the OpenSSL extension is enabled to use thefi...
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PHP global in functions

...alVariablesAreBad How is testing the registry pattern or singleton hard in PHP? Flaw: Brittle Global State & Singletons static considered harmful Why Singletons have no use in PHP SOLID (object-oriented design) share ...
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Why is it said that “HTTP is a stateless protocol”?

...ication, Web Storage, HTTP caching, HTTP stream identifiers, HTTP/2 header blocks, HTTP/2 frames, header compression, and opportunistic encryption are all stateful. – Zamicol Aug 3 at 2:59 ...
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PHP String to Float

I am not familiar with PHP at all and had a quick question. 8 Answers 8 ...
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Make a link use POST instead of GET

...ng more than you already have. <form name="myform" action="handle-data.php" method="post"> <label for="query">Search:</label> <input type="text" name="query" id="query"/> <button>Search</button> </form> <script> var button = document.querySelec...
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How does facebook, gmail send the real time notification?

...JAX, it'll take a lot of the cross-compability problems away. In terms of PHP, you could simply poll an event log database table in your PHP script, and only return to the client when something happens? There are, I expect, many ways of implementing this. Implementing: Server Side: There appear ...
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Why use sprintf function in PHP?

I am trying to learn more about the PHP function sprintf() but php.net did not help me much as I am still confused, why would you want to use it? ...
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Resumable downloads when using PHP to send the file?

We are using a PHP scripting for tunnelling file downloads, since we don't want to expose the absolute path of downloadable file: ...