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PHP date() format when inserting into datetime in MySQL
... date() function in PHP if I want to insert the result into a MySQL datetime type column?
13 Answers
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Check to see if python script is running
...e condition. If two instances of the script are executed at about the same time, it's possible that if os.path.isfile(pidfile) may evaluate to false for both, causing them to both write the lock file and continue running.
– Cerin
May 10 '13 at 20:05
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What is the best way to test for an empty string in Go?
...uld be better due to a syntactical advantage. s != "" will fail at compile time if the variable is not a string, while len(s) == 0 will pass for several other data types.
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Parsing Visual Studio Solution files
... edit the post to include this twice but just got shot down in flames each time.
– oasten
Jul 28 '14 at 13:39
3
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JavaScript: clone a function
...big issue with this answer is that once you bind, you cannot bind a second time. Subsequent calls to apply also ignore the 'this' object passed. Example: var f = function() { console.log('hello ' + this.name) } when bound to {name: 'Bob'} prints 'hello Bob'. f.apply({name: 'Sam'}) will also print...
How accurate is python's time.sleep()?
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The accuracy of the time.sleep function depends on your underlying OS's sleep accuracy. For non-realtime OS's like a stock Windows the smallest interval you can sleep for is about 10-13ms. I have seen accurate sleeps within several millisecond...
How do I get a background location update every n minutes in my iOS application?
...the Apple Developer Forums:
Specify location background mode
Create an NSTimer in the background with UIApplication:beginBackgroundTaskWithExpirationHandler:
When n is smaller than UIApplication:backgroundTimeRemaining it will work just fine. When n is larger, the location manager should be enable...
How does collections.defaultdict work?
...tation-specific behaviour - in both cases a new instance is "created" each time with int() or list(). That way, d[k].append(v) can work without filling the dictionary with references to the same list, which would render defaultdict almost useless. If this were the behaviour, defaultdict would take a...
hash function for string
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Wikipedia shows a nice string hash function called Jenkins One At A Time Hash. It also quotes improved versions of this hash.
uint32_t jenkins_one_at_a_time_hash(char *key, size_t len)
{
uint32_t hash, i;
for(hash = i = 0; i < len; ++i)
{
hash += key[i];
hash +...
How different is Objective-C from C++? [closed]
...ispatch, allowing the class responding to a message to be determined at runtime, unlike C++ where the object a method is invoked upon must be known at compile time (see wilhelmtell's comment below). This is related to the previous point.
Objective-C allows autogeneration of accessors for member va...