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apc vs eaccelerator vs xcache

Im doing research on which one of these to use and I can't really find one that stands out. Eaccelerator is faster than APC , but APC is better maintained. Xcache is faster but the others have easier syntax. ...
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How to allow to accept only image files?

...t is very sketchy on mobiles (as of 2015) and by some reports this may actually prevent some mobile browsers from uploading anything at all, so be sure to test your target platforms well. For detailed browser support, see http://caniuse.com/#feat=input-file-accept ...
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Performance of FOR vs FOREACH in PHP

First of all, I understand in 90% of applications the performance difference is completely irrelevant, but I just need to know which is the faster construct. That and... ...
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How does this checkbox recaptcha work and how can I use it?

... Excerpt from the email: We expect to move all existing reCAPTCHA sites to the new API in 2015. – Timothy Zorn Sep 11 '14 at 3:29 1 ...
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Difference between “include” and “require” in php

...ill halt the script whereas include only emits a warning (E_WARNING) which allows the script to continue. See @efritz's answer for an example share | improve this answer | ...
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PHP, get file name without file extension

... No need for all that. Check out pathinfo(), it gives you all the components of your path. Example from the manual: $path_parts = pathinfo('/www/htdocs/index.html'); echo $path_parts['dirname'], "\n"; echo $path_parts['basename'], "\n"...
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How to get the difference between two arrays in JavaScript?

... gvlasov 13.5k1717 gold badges5858 silver badges9898 bronze badges answered Oct 9 '15 at 9:33 Luis SieiraLuis Sieira 16k33 gol...
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How to “log in” to a website using Python's Requests module?

...name and password, so we go to the login page say http://example.com/login.php now and view it's source code and search for the action URL it will be in form tag something like <form name="loginform" method="post" action="userinfo.php"> now take userinfo.php to make absolute URL which wil...
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Hash and salt passwords in C#

... blowdartblowdart 51.1k1111 gold badges9898 silver badges144144 bronze badges 3 ...
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Remove non-utf8 characters from string

...eplacement is whatever was captured into group 1. This effectively removes all invalid bytes. It is possible to repair the string, by encoding the invalid bytes as UTF-8 characters. But if the errors are random, this could leave some strange symbols. $regex = <<<'END' / ( (?: [\x00-...