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Running Bash commands in Python
...A common mistake is to use shell=True and then still pass Python a list of tokens, or vice versa. This happens to work in some cases, but is really ill-defined and could break in interesting ways.
# XXX AVOID THIS BUG
buggy = subprocess.run('dig +short stackoverflow.com')
# XXX AVOID THIS BUG TOO
...
PHP String to Float
I am not familiar with PHP at all and had a quick question.
8 Answers
8
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Why use sprintf function in PHP?
I am trying to learn more about the PHP function sprintf() but php.net did not help me much as I am still confused, why would you want to use it?
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How do I find where an exception was thrown in C++?
...bt]: (8) ./test(__libc_start_main+0x95) [0x42017589]
[bt]: (9) ./test(__eh_alloc+0x3d) [0x8048b21]
signal 6 (Aborted), address is 0x1239 from 0x42029331
crit_err_hdlr backtrace returned 13 frames
[bt]: (1) ./test(kill+0x11) [0x42029331]
[bt]: (2) ./test(abort+0x16e) [0x4202a8c2]
[bt]: (3) ./test [...
Hidden features of mod_rewrite
...directories
RewriteCond %{REQUEST_FILENAME} !-d
# map requests to index.php and append as a query string
RewriteRule ^(.*)$ index.php?query=$1
Since Apache 2.2.16 you can also use FallbackResource.
Handling 301/302 redirects:
RewriteEngine on
# 302 Temporary Redirect (302 is the default, but ...
How do you reverse a string in place in JavaScript?
...mmutable strings, thus defeating the whole idea of moving a string without allocating any new memory.
While the solutions above do indeed reverse a string, they do not do it without allocating more memory, and thus do not satisfy the conditions. You need to have direct access to the string as allo...
PHP function to make slug (URL string)
... use Transliterator::transliterate function to create a slug easily.
<?php
$string = 'Namnet på bildtävlingen';
$slug = \Transliterator::createFromRules(
':: Any-Latin;'
. ':: NFD;'
. ':: [:Nonspacing Mark:] Remove;'
. ':: NFC;'
. ':: [:Punctuation:] Remove;'
. ':: Lowe...
JavaScript equivalent of PHP’s die
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I think that if PHP has a "firebug" equivalent, it should also write "1 error" on die() ;-) Good answer!
– Adrian Maire
Apr 25 '13 at 14:04
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How to render a DateTime object in a Twig template
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Twig's date function uses the same format as the php function (from the Twig docs). For anyone looking for other formats, php.net/manual/en/function.date.php.
– JonnyS
Mar 19 '14 at 20:22
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Best Practice for Forcing Garbage Collection in C#
...ram idles, the memory in use is not garbage-collected because there are no allocations.
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