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How to use php serialize() and unserialize()
... means to put the structure into a "lower common denominator" that can be handled by things other than PHP, like databases, text files, sockets. The standard PHP function serialize is just a format to express such a thing, it serializes a data structure into a string representation that's unique to ...
How to check if running in Cygwin, Mac or Linux?
I have a shell script that is used both on Windows/Cygwin and Mac and Linux. It needs slightly different variables for each versions.
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How do I get java logging output to appear on a single line?
...ormat from a system property, so adding something like this to the JVM command line will cause it to print on one line:
-Djava.util.logging.SimpleFormatter.format='%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS %4$s %2$s %5$s%6$s%n'
Alternatively, you can also add this to your logger.properties:
java.util....
Trim a string based on the string length
...nts, or (worse) truncate in the middle of a surrogate pair. On the other hand, String.length() is no longer an ideal measure of Unicode text length, so trimming based on it may be the wrong thing to do.
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Search for string and get count in vi editor
I want to search for a string and find the number of occurrences in a file using the vi editor.
8 Answers
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How to check Oracle database for long running queries
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from v$sqltext_with_newlines t,V$SESSION s
where t.address =s.sql_address
and t.hash_value = s.sql_hash_value
and s.status = 'ACTIVE'
and s.username <> 'SYSTEM'
order by s.sid,t.piece
/
This shows locks. Sometimes things are going slow, but it's because it is blocked waiting for a lock:
s...
Cartesian product of x and y array points into single array of 2D points
I have two numpy arrays that define the x and y axes of a grid. For example:
13 Answers
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Cost of len() function
...ength of the element - very fast) on every type you've mentioned, plus set and others such as array.array.
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How do you get assembler output from C/C++ source in gcc?
... the preprocessor (cpp) over helloworld.c, perform the initial compilation and then stop before the assembler is run.
By default this will output a file helloworld.s. The output file can be still be set by using the -o option.
gcc -S -o my_asm_output.s helloworld.c
Of course this only works if y...
Colorized Ruby output to the terminal [closed]
Using Ruby, how can I perform background and foreground text colorization for output in the terminal?
11 Answers
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