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Array to String PHP?
What is the best method for converting a PHP array into a string?
I have the variable $type which is an array of types.
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Passing references to pointers in C++
...ing scope, not an anonymous string pointer. Thus:
string s;
string* _s = &s;
myfunc(_s);
should compile just fine.
However, this is only useful if you intend to modify the pointer you pass to the function. If you intend to modify the string itself you should use a reference to the string as ...
Selecting multiple columns in a pandas dataframe
... ix accepts slice arguments, so you can also get columns. For example, df.ix[0:2, 0:2] gets the upper left 2x2 sub-array just like it does for a NumPy matrix (depending on your column names of course). You can even use the slice syntax on string names of the columns, like df.ix[0, 'Col1':...
Possibility of duplicate Mongo ObjectId's being generated in two different collections?
...ing in Mongo itself, it is possible to have duplicate _id's generated with PHP in Mongo.
The use-case where this has happened with regularity for me is when I'm looping through a dataset and attempting to inject the data into a collection.
The array that holds the injection data must be explicitl...
ImportError: No module named pip
...via 'sudo apt-get install python-pip'. These versioning changes (i.e. like php with homebrew) drive me crazy sometimes...
– Ryan Coolwebs
Dec 12 '18 at 2:58
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Is there a built-in function to print all the current properties and values of an object?
So what I'm looking for here is something like PHP's print_r function.
25 Answers
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How to 'bulk update' with Django?
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@shihon I'm not sure if I got you right but I added example to the answer.
– jb.
Dec 23 '15 at 9:42
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configure: error: Unable to find gd.h anywhere under /usr/local/gd - ...
configure: error: Unable to find gd.h anywhere under /usr/local/gd安装php时出现configure: error: Unable to find gd.h anywhere under，错误解决在进行PHP开发环境源码安装时，在安装PHP-5.2.6是出...安装php时出现configure: error: Unable to find gd.h anywhere under，错误...
Call Go functions from C
...he callbackhandler in our package and called.
Let's use a more advanced example I am currently working with. In this case, we have a C function that performs a pretty heavy task: It reads a list of files from a USB device. This can take a while, so we want our app to be notified of its progress. We...
How do I find the MySQL my.cnf location
... a MySQL command to locate the my.cnf configuration file, similar to how PHP's phpinfo() locates its php.ini ?
25 Ans...