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Run php script as daemon process
I need to run a php script as daemon process (wait for instructions and do stuff). cron job will not do it for me because actions need to be taken as soon as instruction arrives. I know PHP is not really the best option for daemon processes due to memory management issues, but due to various reasons...
How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators dif
...ence between == and ===
The difference between the loosely == equal operator and the strict === identical operator is exactly explained in the manual:
Comparison Operators
┌──────────┬───────────┬────────────────...
How can I get a view's current width and height when using autolayout constraints?
...en the view is resized because of its constraints (maybe after a rotation, or in response to an event). Is there a way to get its current width and height?
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Using margin:auto to vertically-align a div
So I know we can center a div horizontally if we use margin:0 auto; . Should margin:auto auto; work how I think it should work? Centering it vertically as well?
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Internal typedefs in C++ - good style or bad style?
...s much as possible, and use of classes is the best way to do this in C++. For example, the C++ Standard library makes heavy use of typedefs within classes.
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Why does integer overflow on x86 with GCC cause an infinite loop?
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When the standard says it's undefined behavior, it means it. Anything can happen. "Anything" includes "usually integers wrap around, but on occasion weird stuff happens".
Yes, on x86 CPUs, integers usually wrap the way you expect. This is one of those exceptions. The ...
Why do we need the “finally” clause in Python?
...akes a difference if you return early:
try:
run_code1()
except TypeError:
run_code2()
return None # The finally block is run before the method returns
finally:
other_code()
Compare to this:
try:
run_code1()
except TypeError:
run_code2()
return None
other_code() ...
Tables instead of DIVs [duplicate]
...hole "Tables vs Divs" thing just barely misses the mark. It's not "table" or "div". It's about using semantic html.
Even the div tag plays only a small part in a well laid out page. Don't overuse it. You shouldn't need that many if you put your html together correctly. Things like lists, field...
How to center a Window in Java?
What's the easiest way to centre a java.awt.Window , such as a JFrame or a JDialog ?
16 Answers
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How to include JavaScript file or library in Chrome console?
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appendChild() is a more native way:
var script = document.createElement('script');
script.type = 'text/javascript';
script.src = 'script.js';
document.head.appendChild(script);
...