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USJacob Courtneay
 

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  1. USJacob Courtneay
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    1. POHow to create linked or mirrored tables in MySQL
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    2. PODealing with context classes in Python 2.4
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    3. POHow to create linked or mirrored tables in MySQL
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      1. POWhere do I start making a linux input hack?
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    1. COIf you want hours just add `$hours = floor($minutes / 60); $minutes %= 60;`. I gave him exactly what he asked for in one line, the other answer is over 15 lines and handles details like string padding. If we really want to be "correct", we shouldn't be doing any of this, since [this functionality is in the standard library](http://www.php.net/manual/en/dateinterval.format.php) since PHP 5.3.
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      1. USJacob Courtneay
    2. COOf course that version check is faster than compilation. To do anything with the comparison test, it will need to import (compile) code, not just make two assignments. For Python 2.5, the exception check is actually slightly faster (3.47s vs 3.87s on my machine with 1,000,000 iterations through timeit). However on 2.4, the exception check is approximately 30 times slower due to catching the SyntaxError every time. The version check is obviously better, but your example doesn't show the real reason why. =)
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      1. USJacob Courtneay
    3. CO`bcmod` takes the modulus to an arbitrary precision. Basically, `bcmod($a, $b)` means `$a % $b`. Functions beginning with bc- are from the BCMath extension. They allow you to perform arbitrary-precision calculations. Unless your needs call for microsecond resolution (which I doubt), there's not much point in it. Besides, these functions store the numbers as a string, so when you do ordinary division they will be cast to ordinary types and you'll lose the precision.
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      1. USJacob Courtneay
 

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