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How can I capture the result of var_dump to a string?
...able" while var_dump simply dumps information about a variable. What this means in practice is that var_export gives you valid PHP code (but may not give you quite as much information about the variable, especially if you're working with resources).
Demo:
$demo = array(
"bool" => false,
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What is the difference between quiet NaN and signaling NaN?
... observe that:
qNaN and sNaN seem to be differentiated only by bit 22: 1 means quiet, and 0 means signaling
infinities are also quite similar with exponent == 0xFF, but they have fraction == 0.
For this reason, NaNs must set bit 21 to 1, otherwise it would not be possible to distinguish sNaN from...
PostgreSQL - how to quickly drop a user with existing privileges
... Indeed, the DROP OWNED BY command is a bit ambiguous in its meaning and effects. I had to read the doc carefully to get it right. Thanks for the posts guys.
– Sébastien Clément
Apr 7 '16 at 19:36
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How do I get the picture size with PIL?
...ibly) includes the number of channels. If you only get 2 dims it probably means that the number of channels is 1.
– Alex Kreimer
May 12 at 8:59
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How can I match a string with a regex in Bash?
...rks, but it's really easy to over-generalize and mistakenly believe that * means to match anything in any context. It only works like that inside [[ ]]. Otherwise, it expands to the existing filenames.
– Alan Porter
Feb 26 '14 at 16:02
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Do I need to store the salt with bcrypt?
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@Adam - As the salt is randomly generated, it means you don't need to have a method of associating the two things in your database.
– RodeoClown
Jan 26 '11 at 20:39
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Standard deviation of a list
I want to find mean and standard deviation of 1st, 2nd,... digits of several (Z) lists. For example, I have
8 Answers
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AJAX in Chrome sending OPTIONS instead of GET/POST/PUT/DELETE?
...ly considered a cross-origin resource (CORS) request, which in other words means that the request automatically issues an OPTIONS request which checks for CORS headers on the server's/servlet's side.
This happens even if you set
crossOrigin: false;
or even if you ommit it.
The reason is simply...
JavaScript hard refresh of current page
...eb browser to do a hard refresh of the page via JavaScript?
Hard refresh means getting a fresh copy of the page AND refresh all the external resources (images, JavaScript, CSS, etc.).
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Resolving conflicts: how to accept “their” changes automatically?
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Thank you very much! I don't understand what @djc means, but your solution works like a charm.
– psihodelia
Mar 21 '13 at 15:05
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