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Installing PDO driver on MySQL Linux server
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On Ubuntu you should be able to install the necessary PDO parts from apt using sudo apt-get install php5-mysql
There is no limitation between using PDO and mysql_ simultaneously. You will however need to create two connections to your DB, one with mysql_ and one using PDO.
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Convert a matrix to a 1 dimensional array
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From ?matrix: "A matrix is the special case of a two-dimensional 'array'." You can simply change the dimensions of the matrix/array.
Elts_int <- as.matrix(tmp_int) # read.table returns a data.frame as Brandon noted
dim(...
What is the behavior of integer division?
... the operands.
and:
5 The result of the / operator is the
quotient from the division of the
first operand by the second; the
result of the % operator is the
remainder. In both operations, if the
value of the second operand is zero,
the behavior is undefined.
[Note: Emphasis mine]...
Fragment MyFragment not attached to Activity
...Resources().getString(R.string.app_name);
}
}
To avoid onPostExecute from being called when the Fragment is not attached to the Activity is to cancel the AsyncTask when pausing or stopping the Fragment. Then isAdded() would not be necessary anymore. However, it is advisable to keep this check ...
What's the best way to distribute Java applications? [closed]
...n Webstart: As long as the user has a version of Java installed that's not from the stone age (e. g. 1.2) webstart can be told to download and install a newer Java version of the one you require for your program is not there yet. Look at the .jnlp file syntax. Of course it still quite prominently di...
What is an Intent in Android?
...n; in other words,
a messaging object you can use to request an action from another app component
An Intent is basically a message to say you did or want something to happen. Depending on the intent, apps or the OS might be listening for it and will react accordingly. Think of it as a blast em...
How to backup a local Git repository?
...keep 3 backups for a repo - like rotate...)
# - TESTING
# allow calling from other scripts
def git_backup
# constants:
git_dir_name = '.git' # just to avoid magic "strings"
filename_suffix = ".git.bundle" # will be added to the filename of the created backup
# Test if we are ins...
“implements Runnable” vs “extends Thread” in Java
From what time I've spent with threads in Java, I've found these two ways to write threads:
42 Answers
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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
...ay to achieve it is the setTimeout function, look that up to create a loop from which you alter the alpha over time.
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Can I control the location of .NET user settings to avoid losing settings on application upgrade?
...e two hashes in the properties of the setup project (that the msi is built from), the 'upgrade code' and the 'product code'. These determine how the msi can be installed, and if it upgrades, overwrites, or installs beside any other version of the same application.
For instance, if you have two v...