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selecting unique values from a column
...nstead of using SELECT * ... use SELECT column 1, column 2... Unless you really do need all columns.
– LPChip
Nov 18 '17 at 20:43
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Relative URLs in WordPress
...oesn't use relative URLs:
Core ticket:
Root-relative URLs aren't really proper. /path/ might not be WordPress, it might be outside of the install. So really it's not much different than an absolute URL.
Any relative URLs also make it significantly more difficult to perform transformations ...
Block Comments in Clojure
...t. For example, (comment "print("/foo")") will die with the error Invalid token: /foo.
– John Wiseman
May 12 '17 at 20:50
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How do I update the password for Git?
...s way late, but if you have two factor enabled you need to generate an API token from your account settings in GitHub and use that for your password. Instructions here: help.github.com/articles/…
– Michael
Aug 21 '18 at 14:02
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How can I check if the current date/time is past a set date/time?
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Since PHP >= 5.2.2 you can use the DateTime class as such:
if (new DateTime() > new DateTime("2010-05-15 16:00:00")) {
# current time is greater than 2010-05-15 16:00:00
# in other words, 2010-05-15 16:00:00 has pass...
Why is  appearing in my HTML? [duplicate]
...acters using their actual codes.
Once you locate it, you can delete the small block of text around it and retype that text manually.
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How to saveHTML of DOMDocument without HTML wrapper?
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All of these answers are now wrong, because as of PHP 5.4 and Libxml 2.6 loadHTML now has a $option parameter which instructs Libxml about how it should parse the content.
Therefore, if we load the HTML with these options
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How can we match a^n b^n with Java regex?
...tion (?=…).
Here is our pattern with a simple test harness:
function testAll($r, $tests) {
foreach ($tests as $test) {
$isMatch = preg_match($r, $test, $groups);
$groupsJoined = join('|', $groups);
print("$test $isMatch $groupsJoined\n");
}
}
$tests = array('aaa', 'aaab',...
Can the jQuery UI Datepicker be made to disable Saturdays and Sundays (and holidays)?
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There is the beforeShowDay option, which takes a function to be called for each date, returning true if the date is allowed or false if it is not. From the docs:
beforeShowDay
The function takes a date as a parameter and must return an array with [0] equal to true/false indicating wh...
How to search a Git repository by commit message?
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To search the commit log (across all branches) for the given text:
git log --all --grep='Build 0051'
To search the actual content of commits through a repo's history, use:
git grep 'Build 0051' $(git rev-list --all)
to show all instances of the given t...