How to add "http" to the beginning of bad links?

[laredotornado@zipmail.com]

Hi,

I have a scalar variable, "$url" that may or not contain "http://" in
front of it. If it is not there, I'd like to add it. Unfortunately,
this code isn't working for me with PHP 4.

if (strpos(strtolo wer($url), "http://") != 0) {
$url = "http://$url";
} // if

How can I correct?

Thanks, - Dave

[NC]

Re: How to add "http&quot ; to the beginning of bad links?

laredotornado@z ipmail.com wrote:[color=blue]
>
> I have a scalar variable, "$url" that may or not contain "http://"
> in front of it. If it is not there, I'd like to add it. Unfortunately,
> this code isn't working for me with PHP 4.
>
> if (strpos(strtolo wer($url), "http://") != 0) {
> $url = "http://$url";
> } // if
>
> How can I correct?[/color]

if (strpos(strtolo wer($url), "http://") !== false) {
$url = "http://$url";
}

Read the Manual, it's all there:

http://www.php.net/strpos

Cheers,
NC

[Rik]

Re: How to add "http&quot ; to the beginning of bad links?

NC wrote:[color=blue]
> laredotornado@z ipmail.com wrote:[color=green]
>>
>> I have a scalar variable, "$url" that may or not contain "http://"
>> in front of it. If it is not there, I'd like to add it.
>> Unfortunately, this code isn't working for me with PHP 4.
>>
>> if (strpos(strtolo wer($url), "http://") !=
>> 0) { $url = "http://$url";
>> } // if
>>
>> How can I correct?[/color]
>
> if (strpos(strtolo wer($url), "http://") !== false) {
> $url = "http://$url";
> }
>[/color]

It's just a pity for relative links, other protocols (https://, ftp://, even
mailto:, all extremely valid). Then again, that wasn't the op's question...

I'd:
if(preg_match(' "^(https?://|ftp://|mailto:|\.{0,2 }/|smb://|file://|s?news:|l
dap(i|s)?:|goph er:|nntp:|telne t:|mms:|ssh:)"s i', $url)<1) $url =
'http://'.$url;

I'm still forgetting a lot of other possibilities though...

Grtz,
--
Rik Wasmus

[John Dunlop]

Re: How to add &quot;http&quot ; to the beginning of bad links?

Rik:
[color=blue]
> if(preg_match(' "^(https?://|ftp://|mailto:|\.{0,2 }/|smb://|file://|s?news:|l
> dap(i|s)?:|goph er:|nntp:|telne t:|mms:|ssh:)"s i', $url)<1) $url =
> 'http://'.$url;
>
> I'm still forgetting a lot of other possibilities though...[/color]

Forget about particular schemes and match scheme names (plus colon)
in general:

`^[a-z][a-z\d+.-]+:`i

http://www.ietf.org/rfc/rfc3986.txt :3.1

--
Jock