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How to check that a string is an int, but not a double, etc.?
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185
How about using ctype_digit?
From the manual:
<?php
$strings = array('1820.20', '10002', ...
How to create a MySQL hierarchical recursive query
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15 Answers
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Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby
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13 Answers
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Why is 1/1/1970 the “epoch time”?
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Early versions of unix measured system time in 1/60 s intervals. This meant that a 32-bit unsigned integer could only represent a span of time less than 829 days. For this reason, the time represented by the number 0 (called the epoch) had to be set in the very recent pas...
jquery live hover
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jQuery 1.4.1 now supports "hover" for live() events, but only with one event handler function:
$("table tr").live("hover",
function () {
});
Alternatively, you can provide two functions, one for mouseenter and one for mouseleav...
Get the correct week number of a given date
...t of solutions, but none of them give me the correct week number for the 2012-12-31. Even the example on MSDN ( link ) fails.
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How to get Scala List from Java List?
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EDIT: Note that this is deprecated since 2.12.0. Use JavaConverters instead. (comment by @Yaro...
Javascript Equivalent to PHP Explode()
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Comprehensive beginner's virtualenv tutorial? [closed]
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And this is a slightly more practical one: https://web.archive.org/web/20160404222648/https://iamzed.com/2009/05/07/a-primer-on-virtualenv/
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