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Simple way to calculate median with MySQL
...ime finding a simple way of calculating the median. For now, I'm returning all the rows to PHP, doing a sort, and then picking the middle row, but surely there must be some simple way of doing it in a single MySQL query.
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How can I plot separate Pandas DataFrames as subplots?
...d indices. When invoking df.plot() , I get separate plot images. what I really want is to have them all in the same plot as subplots, but I'm unfortunately failing to come up with a solution to how and would highly appreciate some help.
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How does a hash table work?
... book knows the title of the book and the exact title to boot, then that's all it should take. With the title, the person, with the aid of the librarian, should be able to find the book easily and quickly.
So, how can you do that? Well, obviously you can keep some kind of list of where you put each...
What does {0} mean when initializing an object?
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What's happening here is called aggregate initialization. Here is the (abbreviated) definition of an aggregate from section 8.5.1 of the ISO spec:
An aggregate is an array or a class with no user-declared constructors, no private or protected non...
Javascript How to define multiple variables on a single line?
...; var a = b = c = [];
>>> c.push(1)
[1]
>>> a
[1]
They all refer to the same object in memory, they are not "unique" since anytime you make a reference to an object ( array, object literal, function ) it's passed by reference and not value. So if you change just one of those vari...
Shrink a YouTube video to responsive width
...be videos or is there something that I can add to the code to make it go smaller?
10 Answers
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Row count with PDO
... question, the only reason mysql_num_rows() worked is because it was internally fetching all the rows to give you that information, even if it didn't seem like it to you.
So in PDO, your options are:
Use PDO's fetchAll() function to fetch all the rows into an array, then use count() on it.
Do an ex...
how to use python to execute a curl command
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It seems there's a small typo in the headers, which should read 'Accept-Charset': 'UTF-8'
– Stephen Lead
Feb 4 '16 at 2:25
1
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What's better to use in PHP, $array[] = $value or array_push($array, $value)?
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No benchmarks, but I personally feel like $array[] is cleaner to look at, and honestly splitting hairs over milliseconds is pretty irrelevant unless you plan on appending hundreds of thousands of strings to your array.
Edit: Ran this code:
$t = microti...
Try/Catch block in PHP not catching Exception
...s someone else in the same situation.
I had my exception in my namespace called A and the script was in a namespace called B. The problem was that I had A\MyException which equals (in PHP) \B\A\MyException (because my script is in the namespace called B!). All I had to do to fix it was to add backs...