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What are the disadvantages of using persistent connection in PDO
...This is only the tip of the iceberg. It can all be mitigated to an extent by always trying to clean up after a dirty connection on every single script request, but that can be a pain depending on the database. Unless you have identified creating database connections as the one thing that is a bott...
Writing a pandas DataFrame to CSV file
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To delimit by a tab you can use the sep argument of to_csv:
df.to_csv(file_name, sep='\t')
To use a specific encoding (e.g. 'utf-8') use the encoding argument:
df.to_csv(file_name, sep='\t', encoding='utf-8')
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Bootstrap 3 collapsed menu doesn't close on click
...en when you click on a menu item. You can manually override this behaviour by calling .collapse('hide'); on the jQuery element that you want to collapse.
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Viewing my IIS hosted site on other machines on my network
...n)
Because outbound traffic(from server to outside world) is allowed by default .it means for example http responses that web server is sending back to outside users and requests
But inbound traffic (originating from outside world to the server) is blocked by default like the user web reques...
Threads vs Processes in Linux
...l. When the problem falls in a gray area the other trade offs as explained by ephemient becomes important.
– Saurabh
Feb 6 '12 at 7:05
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How to prevent http file caching in Apache httpd (MAMP)
...header Cache-Control: private, x-gzip-ok="" > to prevent caching of ads by proxies and clients.
From http://www.askapache.com/htaccess/using-http-headers-with-htaccess.html
And optionally add the extension for the template files you are retrieving if you are using an extension other than .html f...
Several ports (8005, 8080, 8009) required by Tomcat Server at localhost are already in use
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You've another instance of Tomcat already running. You can confirm this by going to http://localhost:8080 in your webbrowser and check if you get the Tomcat default home page or a Tomcat-specific 404 error page. Both are equally valid evidence that Tomcat runs fine; if it didn't, then you would h...
How long do browsers cache HTTP 301s?
... purged to make room for new ones.
You can verify this at least in Firefox by going to about:cache and finding it under disk cache. It works this way in other browsers including Chrome and the Chromium based Edge, though they don't have an about:cache for inspecting the cache.
In all browsers it is...
Generate random numbers uniformly over an entire range
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@Apollo The documentation says "32-bit Mersenne Twister by Matsumoto and Nishimura, 1998". I'm assuming it's an algorithm to generate pseudo-random numbers.
– Shoe
Nov 23 '15 at 18:14
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C++, Free-Store vs Heap
...The free store is one of the two
dynamic memory areas, allocated/freed
by new/delete. Object lifetime can be
less than the time the storage is
allocated; that is, free store objects
can have memory allocated without
being immediately initialized, and can
be destroyed without the memor...
