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PDO mysql: How to know if insert was successful
...t PDOStatement->errorCode() has nothing?
– datasn.io
Jan 20 '15 at 7:08
1
But INSERT IGNORE wo...
How to subtract 2 hours from user's local time?
...at is, d.setHours(d.getHours() - 24) rewinds d to the same time on the previous day.
– Adam Loving
Mar 5 '15 at 16:44
...
How to output in CLI during execution of PHP Unit tests?
...r way to do this that works much better than the --verbose command line option:
class TestSomething extends PHPUnit_Framework_TestCase {
function testSomething() {
$myDebugVar = array(1, 2, 3);
fwrite(STDERR, print_r($myDebugVar, TRUE));
}
}
This lets you dump anything to ...
Xcode stops working after set “xcode-select -switch”
...ould be pointing it towards the Developer directory, not the Xcode application bundle. Run this:
sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
With recent versions of Xcode, you can go to Xcode ➙ Preferences… ➙ Locations and pick one of the options for Command Line ...
How to print without newline or space?
...
In Python 3, you can use the sep= and end= parameters of the print function:
To not add a newline to the end of the string:
print('.', end='')
To not add a space between all the function arguments you want to print:
print('a', 'b', 'c', sep='')
You can pass any string to either parameter, ...
Send and receive messages through NSNotificationCenter in Objective-C?
I am attempting to send and receive messages through NSNotificationCenter in Objective-C. However, I haven't been able to find any examples on how to do this. How do you send and receive messages through NSNotificationCenter ?
...
Tools for JPEG optimization? [closed]
...
I use libjpeg for lossless operations. It contains a command-line tool jpegtran that can do all you want. With the commandline option -copy none all the metadata is stripped, and -optimize does a lossless optimization of the Huffmann compression. You can als...
How to Empty Caches and Clean All Targets Xcode 4 and later
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Command-Option-Shift-K to clean out the build folder. Even better, quit Xcode and clean out ~/Library/Developer/Xcode/DerivedData manually. Remove all its contents because there's a bug where Xcode will run an old version of your projec...
Why does struct alignment depend on whether a field type is primitive or user-defined?
...
Just to add some data to the mix - I created one more type from the ones you had:
struct RefAndTwoInt32Wrappers2
{
string text;
TwoInt32Wrappers z;
}
The program writes out:
RefAndTwoInt32Wrappers2: 16
So it looks like the TwoInt32Wrappers ...
How to create NSIndexPath for TableView
I need delete row 1 of a table in a function I have defined. In order to use deleteRowAtIndexPath you must use an IndexPath with a section and row defined. How can I create an indexpath like this?
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