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What is the difference between exit and return? [duplicate]
...his is a very good answer except for the conclusion; IMHO it motivates the opposite one: we can assume that the ret instruction returns to a point where there is maybe some additional work done, but in the very end the exit() function will be called anyway - or how could be avoided to do whatever ex...
Options for HTML scraping? [closed]
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FYI, this is a PHP library
– Tristan Havelick
Apr 18 '10 at 15:19
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Bash if [ false ] ; returns true
...nfusing, these variations on the IF/THEN conditional both work, but return opposite results.
These return false:
if [ $foo ]; then echo "true"; else echo "false"; fi
if [ ! foo ]; then echo "true"; else echo "false"; fi
However, these will return a result of true:
if $foo; then echo "true"; else ec...
Regular expression to match any character being repeated more than 10 times
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PHP's preg_replace example:
$str = "motttherbb fffaaattther";
$str = preg_replace("/([a-z])\\1/", "", $str);
echo $str;
Here [a-z] hits the character, () then allows it to be used with \\1 backreference which tries to matc...
Best way to detect when a user leaves a web page?
... non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. developer.mozilla.org/en-US/docs/Web/API/Window/event
– Robin Neal
Jan 20 '17 at 13:37
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Setting DEBUG = False causes 500 Error
Once I change the DEBUG = False , my site will generate 500 (using wsgi & manage.py runserver), and there is no error info in Apache error log and it will run normally when I change debug to True .
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Eclipse jump to closing brace
...changing perspectives makes it work again. So, for example, when I have a PHP file open, but, say, the Java perspective active, pressing Ctrl + Shift + P does nothing. For the same file with the PHP perspective active, pressing Ctrl + Shift + P does exactly what you'd expect and puts my cursor bes...
See changes to a specific file using git
...short value. For example, to find out who changed foo to bar in dist/index.php, you would use git blame dist/index.php | grep bar
– Kraang Prime
May 11 '17 at 15:38
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How does Stack Overflow generate its SEO-friendly URLs?
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For good measure, here's the PHP function in WordPress that does it... I'd think that WordPress is one of the more popular platforms that uses fancy links.
function sanitize_title_with_dashes($title) {
$title = strip_tags($title);
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Why is the minimalist, example Haskell quicksort not a “true” quicksort?
...ts are computed before that function starts running.
In Haskell, it's the opposite. The function starts running first. The arguments are only computed when the function actually uses them. And a compound argument, like a list, is computed one piece at a time, as each piece of it is used.
So the fi...