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What are deferred objects?

...As of jQuery 1.5, the Deferred object provides a way to register multiple callbacks into self-managed callback queues, invoke callback queues as appropriate, and relay the success or failure state of any synchronous or asynchronous function. Deferred Methods: deferred.done() Add handlers to be cal...
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Internal Error 500 Apache, but nothing in the logs?

... Please Note: The original poster was not specifically asking about PHP. All the php centric answers make large assumptions not relevant to the actual question. The default error log as opposed to the scripts error logs usually has the (more) specific error. often it will b...
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How can I remove a key and its value from an associative array?

...oop, then you need to prepend an ampersand to your enumeration variable to allow write access. – FreeAsInBeer Jul 30 '12 at 21:20 1 ...
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Is there a way to stop Google Analytics counting development work as hits?

...se of Google Analytics. Only problem is that I am sure that it is counting all my development work as hits. Seeing as I probably see some of those pages a hundred times a day it will really skew my readings. Is there a way to turn it off from a particular IP address or is this something that should ...
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Rank function in MySQL

... (SELECT @curRank := 0) r ORDER BY age; The (SELECT @curRank := 0) part allows the variable initialization without requiring a separate SET command. Test case: CREATE TABLE person (id int, first_name varchar(20), age int, gender char(1)); INSERT INTO person VALUES (1, 'Bob', 25, 'M'); INSERT I...
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Event system in Python

...r methods', which is a simple implementation of the Observer pattern. Basically, the handler methods (callables) are stored in an array and are each called when the event 'fires'. Publish-Subscribe The disadvantage of Observer event systems is that you can only register the handlers on the actual Ev...
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how to check and set max_allowed_packet mysql variable [duplicate]

... max_allowed_packet is set in mysql config, not on php side [mysqld] max_allowed_packet=16M You can see it's curent value in mysql like this: SHOW VARIABLES LIKE 'max_allowed_packet'; You can try to change it like this, but it's unlikely this will work on shared hostin...
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How to use PHP OPCache?

PHP 5.5 has been released and it features a new code caching module called OPCache, but there doesn't appear to be any documentation for it. ...
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How to remove “index.php” in codeigniter's path

... For some reason, if you have index.php in the URL, it's not actually removed, it stays there and keeps working. – CMCDragonkai Dec 3 '13 at 8:06 1 ...
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How to find the php.ini file used by the command line?

... Then this php instance used no php.ini at all but the default values. The Configuration File line of phpinfo() shows the last place where php looked for an ini file. That can either be the place where it found such a file or the last option which happens to be %SYSTE...