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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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Change MySQL default character set to UTF-8 in my.cnf?

...athias Bynens mentioned that 'utf8mb4' should be used instead of 'utf8' in order to have better UTF-8 support ('utf8' does not support 4 byte characters, fields are truncated on insert). I consider this to be an important difference. So here is yet another answer on how to set the default character ...
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Java: Date from unix timestamp

... time-of-day value of 22:30 instead of the 18:00 seen here. I suspect your PHP utility is implicitly applying a default time zone to adjust from UTC. My value here is UTC, signified by the Z (short for Zulu, means UTC). Any chance your machine OS or PHP is set to Asia/Kabul or Asia/Tehran time zones...
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What are the differences in die() and exit() in PHP?

... aliases allows programmers to use the one which is comfortable with. I remember exit better than die. Some others remember die better than exit. – mauris Nov 25 '09 at 6:35 ...
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Simple way to calculate median with MySQL

... @rownum:=0) r WHERE d.val is NOT NULL -- put some where clause here ORDER BY d.val ) as dd WHERE dd.row_number IN ( FLOOR((@total_rows+1)/2), FLOOR((@total_rows+2)/2) ); Steve Cohen points out, that after the first pass, @rownum will contain the total number of rows. This can be used to de...
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Reference assignment operator in PHP, =&

...rror changes made to another, instead of copying the existing data. It's called assignment by reference, which, to quote the manual, "means that both variables end up pointing at the same data, and nothing is copied anywhere". The only thing that is deprecated with =& is "assigning the result ...
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Automatic post-registration user authentication

...istration flow: after the user creates an account, they should be automatically logged in with those credentials, instead of being immediately forced to provide their credentials again. ...
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MySQL integer field is returned as string in PHP

...row array had appropriate data types. Now I'm having to write code to manually cast every element to the data type I'm expecting. – GordonM Mar 25 '11 at 10:14 25 ...
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What is mod_php?

... mod_php means PHP, as an Apache module. Basically, when loading mod_php as an Apache module, it allows Apache to interpret PHP files (those are interpreted by mod_php). EDIT : There are (at least) two ways of running PHP, when working with Apache : Using CGI : a PHP...
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What is the ideal data type to use when storing latitude / longitude in a MySQL database?

...on of 5.6 when table type is MyISAM). Note: When using POINT class, the order of the arguments for storing coordinates must be POINT(latitude, longitude). There is a special syntax for creating a spatial index. The biggest benefit of using SDT is that you have access to Spatial Analyses Functions...