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Get the first N elements of an array?
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Use array_slice()
This is an example from the PHP manual: array_slice
$input = array("a", "b", "c", "d", "e");
$output = array_slice($input, 0, 3); // returns "a", "b", and "c"
There is only a small issue
If the array indices are meaningful to you, remember that ar...
Accessing JPEG EXIF rotation data in JavaScript on the client side
...You could have an API that takes a file URL and returns you the EXIF data; PHP has a module for that.
This could be done using Ajax so it would be seamless to the user. If you don't care about cross-browser compatibility, and can rely on HTML5 file functionality, look into the library JsJPEGmeta t...
How can I change a file's encoding with vim?
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thank you! Apache was outputting utf-8, so was php, so the browser said, so vim said with set encoding, and still the pages showed mangled characters that were alright as iso-8859-1. using set fileencoding showed a pretty 'Latin1'
– Adriano Varoli Pi...
Fastest hash for non-cryptographic uses?
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CRC32 is pretty fast and there's a function for it: http://www.php.net/manual/en/function.crc32.php
But you should be aware that CRC32 will have more collisions than MD5 or even SHA-1 hashes, simply because of the reduced length (32 bits compared to 128 bits respectively 160 bits). But ...
Getting an empty JQuery object
...my case. Maybe I should open a question about it, but I solved it by using PHP instead of jQuery so I can't really dig more into it right now.
– cregox
Mar 2 '11 at 19:02
2
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Force CloudFront distribution/file update
...h the Invalidation API, it does get updated in a few of minutes.
Check out PHP Invalidator.
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X-UA-Compatible is set to IE=edge, but it still doesn't stop Compatibility Mode
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PHP: <?php header('X-UA-Compatible: IE=edge'); ?>
– Nux
Apr 11 '13 at 14:21
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How do I configure emacs for editing HTML files that contain Javascript?
...-web-mode)
(setq mweb-default-major-mode 'html-mode)
(setq mweb-tags
'((php-mode "<\\?php\\|<\\? \\|<\\?=" "\\?>")
(js-mode "<script[^>]*>" "</script>")
(css-mode "<style[^>]*>" "</style>")))
(setq mweb-filename-extensions '("php" "htm" "html" "c...
json_decode to array
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Just in case you are working on php less then 5.2 you can use this resourse.
http://techblog.willshouse.com/2009/06/12/using-json_encode-and-json_decode-in-php4/
http://mike.teczno.com/JSON/JSON.phps
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jQuery pass more parameters into callback
.../ an object / whatever extra params you wish to pass.
$.post("someurl.php", someData, doSomething(extraStuff), "json");
};
What is happening?
In the last line, doSomething(extraStuff) is invoked and the result of that invocation is a function pointer.
Because extraStuff is passed as an argu...