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Generate random numbers uniformly over an entire range
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@Apollo The documentation says "32-bit Mersenne Twister by Matsumoto and Nishimura, 1998". I'm assuming it's an algorithm to generate pseudo-random numbers.
– Shoe
Nov 23 '15 at 18:14
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Eclipse/Java code completion not working
...o previously suffering from Eclipse thinking my project was in 1.5 despite all options saying otherwise, so it must have been corrupted during this issue.
– Philip Guin
Jun 30 '13 at 6:51
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Fastest check if row exists in PostgreSQL
...f a single row from the batch exists in the table because then I know they all were inserted.
8 Answers
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Difference between EXISTS and IN in SQL?
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The exists keyword can be used in that way, but really it's intended as a way to avoid counting:
--this statement needs to check the entire table
select count(*) from [table] where ...
--this statement is true as soon as one match is found
exists ( select * from [table] ...
How to remove the first character of string in PHP?
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Note that lrtim will remove all :::::. Sometimes this is not desired behavior.
– CoR
Nov 20 '13 at 14:02
5
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Regex: match everything but specific pattern
...hem?
– rotimi-best
May 14 '19 at 14:32
I think you mean, a regexpert? :)
– leetbacoon
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Running Bash commands in Python
... are commonly overlooked.
Prefer subprocess.run() over subprocess.check_call() and friends over subprocess.call() over subprocess.Popen() over os.system() over os.popen()
Understand and probably use text=True, aka universal_newlines=True.
Understand the meaning of shell=True or shell=False and how...
Website screenshots
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Sure you can, but you'll need to render the page with something.
If you really want to only use php, I suggest you HTMLTOPS, which renders the page and outputs it in a ps file (ghostscript), then, convert it in a .jpg, .png, .pdf.. can be little slower with complex pages (and don't support all the ...
In PHP, how to detect the execution is from CLI mode or through browser ? [duplicate]
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Use the php_sapi_name() function.
if (php_sapi_name() == "cli") {
// In cli-mode
} else {
// Not in cli-mode
}
Here are some relevant notes from the docs:
php_sapi_name — Returns the type of interface between web server...
Cron and virtualenv
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gak
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answered Jul 20 '10 at 4:40
arsars
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