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def instacheck(name) | |
unless /[a-z0-9._]{,30}/.match(name) | |
return false | |
end | |
if /\.\./.match(name) | |
return false | |
end | |
if /^\d+$/.match(name) | |
return false | |
end | |
if /^\./.match(name) | |
return false | |
end | |
true | |
end |
@verstecken You would pick one of several options in this thread and paste the regex into your function as per its manual page: https://www.php.net/manual/en/function.preg-match.php
Thanks, @technion I tried that before and didn't get it.
You will need to delimit your pattern with for example '/' in preg_match()
and it is not explained on the functions manual website. Maybe a basic to know? Well, that`s why I asked here, because pasting the regex from above did not work straight. I found some info here: https://infoheap.com/php-regex-delimiter-examples/
If you want to get the username out of an instagram or twitter URL, in PHP, this works well:
$url = "https://instagram.com/some.username";
$pattern = "/(?:(?:http|https):\/\/)?(?:www\.)?(?:instagram\.com|instagr\.am|twitter\.com)\/([A-Za-z0-9-_\.]+)/im";
preg_match($pattern, $url, $matches);
echo $matches[1]; // Yeah! This returns "some.username"
My regex did no include any such characters. I can't comment on subsequent advice from anyone else. My code already checked for leading dots and did not fail any tests people brought up relating to someone elses code.
Hello! How can I make this work with PHP´s preg_match() function? Thanks for help.