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PHP validation/regex for URL
...lieve I've run into issues, but I'm sure it's not exhaustive:
$text = preg_replace(
'#((https?|ftp)://(\S*?\.\S*?))([\s)\[\]{},;"\':<]|\.\s|$)#i',
"'<a href=\"$1\" target=\"_blank\">$3</a>$4'",
$text
);
Most of the random junk at the end is to deal with situations like http:/...
Generating all permutations of a given string
...ex + 1);? The currPos seems unnecessary here.
– Robur_131
Aug 15 '19 at 16:07
...
How can I check if a URL exists via PHP?
...
Here:
$file = 'http://www.example.com/somefile.jpg';
$file_headers = @get_headers($file);
if(!$file_headers || $file_headers[0] == 'HTTP/1.1 404 Not Found') {
$exists = false;
}
else {
$exists = true;
}
From here and right below the above post, there's a curl solution:
func...
Passing a string with spaces as a function argument in bash
...rk for me. I'm using Ubuntu 14.04, GNU bash, version 4.3.11(1)-release (x86_64-pc-linux-gnu). What does work for me is using $@ (with or without quotes).
– Kyle Baker
Nov 22 '16 at 20:52
...
remove legend title in ggplot
...
You were almost there : just add theme(legend.title=element_blank())
ggplot(df, aes(x, y, colour=g)) +
geom_line(stat="identity") +
theme(legend.position="bottom") +
theme(legend.title=element_blank())
This page on Cookbook for R gives plenty of details on how to customize ...
How does the bitwise complement operator (~ tilde) work?
... and Two's Complement. Read about them here. en.wikipedia.org/wiki/Ones%27_complement en.wikipedia.org/wiki/Two%27s_complement
– Sai
Dec 21 '14 at 3:40
1
...
Can I change the color of auto detected links on UITextView?
...er won't.
If you want to set appearance for whole application, application(_:didFinishLaunchingWithOptions:) is good place for calling such code.
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uncaught syntaxerror unexpected token U JSON
...fined. I just spent 30 minutes finding that out.
– ug_
Feb 3 '14 at 3:53
13
@ns47731 That is actu...
Regular expression \p{L} and \p{N}
...not be using alternation when a character class would suffice:
[\p{L}\p{N}_.-]*
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django-debug-toolbar not showing up
...s it's True.
If it's still not working, try adding '127.0.0.1' to INTERNAL_IPS as well.
UPDATE
This is a last-ditch-effort move, you shouldn't have to do this, but it will clearly show if there's merely some configuration issue or whether there's some larger issue.
Add the following to settings....