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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 can I reconcile detached HEAD with master/origin?
...new at the branching complexities of Git. I always work on a single branch and commit changes and then periodically push to my remote origin.
...
Why are floating point numbers inaccurate?
...t numbers are represented a lot like scientific notation: with an exponent and a mantissa (also called the significand). A very simple number, say 9.2, is actually this fraction:
5179139571476070 * 2 -49
Where the exponent is -49 and the mantissa is 5179139571476070. The reason it is impossibl...
HTML in string resource?
...
You can also surround your html in a CDATA block as well and getString() will return your actual HTML. Like such:
<string name="foo"><![CDATA[Foo Bar <a href="foo?id=%s">baz</a> is cool]]></string>
Now when you perform a getString(R.string.foo) the...
How do I remove the file suffix and path portion from a path string in Bash?
...
Here's how to do it with the # and % operators in Bash.
$ x="/foo/fizzbuzz.bar"
$ y=${x%.bar}
$ echo ${y##*/}
fizzbuzz
${x%.bar} could also be ${x%.*} to remove everything after a dot or ${x%%.*} to remove everything after the first dot.
Example:
$ x=...
Is there a .NET equivalent to Apache Hadoop? [closed]
So, I've been looking at Hadoop with keen interest, and to be honest I'm fascinated, things don't get much cooler.
15 Ans...
Tools for JPEG optimization? [closed]
Do you know of any tools (preferrably command-line) to automatically and losslessly optimize JPEGs that I could integrate into our build environment? For PNGs I'm currently using PNGOUT , and it generally saves around 40% bandwidth/image size.
...
Why use apparently meaningless do-while and if-else statements in macros?
...
The do ... while and if ... else are there to make it so that a
semicolon after your macro always means the same thing. Let's say you
had something like your second macro.
#define BAR(X) f(x); g(x)
Now if you were to use BAR(X); in an if ...
Hiding the scroll bar on an HTML page
...w: hidden;
}
</style>
The code above hides both the horizontal and vertical scrollbar.
If you want to hide only the vertical scrollbar, use overflow-y:
<style type="text/css">
body {
overflow-y: hidden;
}
</style>
And if you want to hide only the horizonta...
Difference between dispatch_async and dispatch_sync on serial queue?
...k is finished whereas dispatch_async return after it is added to the queue and may not finished.
for this code
dispatch_async(_serialQueue, ^{ printf("1"); });
printf("2");
dispatch_async(_serialQueue, ^{ printf("3"); });
printf("4");
It may print 2413 or 2143 or 1234 but 1 always before 3
for ...