Shoutbox

quote:

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Originally posted by Ezra
But could you gice me something that explains that "/^[a-z]+:\/\//i"

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http://php.net/reference.pcre.pattern.syntax

It will match any string that begins with 1 or more letters followed by a colon and 2 slashes. It's also case-insensitive.

Exactly

I'm not sure if there are protocols with other chars then a-z in it, but it supports at least http, https, ftp etc. And if you ever see another protocol, you can always change it

Btw:
"/^[a-z]+:\/\//i"

The "main preg" is between / and /
The ^ stands for "begins with";
[a-z]+ is one of more letters
: is a colon
\/ is a /, but should be escaped with a \
\/ is another one
/ is the last / of the preg
i means case insensitive

Thanks for the explanation both