how to replace urls in a document (with regular expression)

[Curious Expatriate]

Hi-

I'm completely stumped. I'm trying to write some code that will parse
a file and rewrite it with all URLs replaced by something else.

For example: if the file looks like this:

<b>click here</b><a href="http://www.cnn.com">cl ick me</a>

... then the output should be this:

<b>click here</b><a href="http://mysite?myurl=ww w.cnn.com">clic k
me</a>

Anyhelp on how to accomplish such thing would be really appreciated -
I spent hours on this and I'm completely stuck.

TIA,

JJ

[Andreas Paasch]

Re: how to replace urls in a document (with regular expression)

Curious Expatriate wrote:
[color=blue]
> Hi-
>
> I'm completely stumped. I'm trying to write some code that will parse
> a file and rewrite it with all URLs replaced by something else.
>
> For example: if the file looks like this:
>
> <b>click here</b><a href="http://www.cnn.com">cl ick me</a>
>
> .. then the output should be this:
>
> <b>click here</b><a href="http://mysite?myurl=ww w.cnn.com">clic k
> me</a>
>[/color]

If I'm not mistaken, it's a string added to a string.

//define the website url
$string="http://www.cnn.com"
// strip the text http:// (7 characters)
$urlvariable=su bstr($string,7)
//put it correctly together
"http://mysite?myurl=". $urlvariable

Should do what you want, right?

/Andreas

--
Registeret Linux user #292411

[Andreas Paasch]

Re: how to replace urls in a document (with regular expression)

Andreas Paasch wrote:
[color=blue]
> Curious Expatriate wrote:
>[color=green]
>> Hi-
>>
>> I'm completely stumped. I'm trying to write some code that will parse
>> a file and rewrite it with all URLs replaced by something else.
>>
>> For example: if the file looks like this:
>>
>> <b>click here</b><a href="http://www.cnn.com">cl ick me</a>
>>
>> .. then the output should be this:
>>
>> <b>click here</b><a href="http://mysite?myurl=ww w.cnn.com">clic k
>> me</a>
>>[/color]
>
> If I'm not mistaken, it's a string added to a string.
>
> //define the website url
> $string="http://www.cnn.com"
> // strip the text http:// (7 characters)
> $urlvariable=su bstr($string,7)
> //put it correctly together
> "http://mysite?myurl=". $urlvariable
>
> Should do what you want, right?
>
> /Andreas
>[/color]

Oops, doing this with regular expressions is not in my knowledge base,
sorry.

--
Registeret Linux user #292411

[Justin Koivisto]

Re: how to replace urls in a document (with regular expression)

Curious Expatriate wrote:
[color=blue]
> Hi-
>
> I'm completely stumped. I'm trying to write some code that will parse
> a file and rewrite it with all URLs replaced by something else.
>
> For example: if the file looks like this:
>
> <b>click here</b><a href="http://www.cnn.com">cl ick me</a>
>
> .. then the output should be this:
>
> <b>click here</b><a href="http://mysite?myurl=ww w.cnn.com">clic k
> me</a>
>
> Anyhelp on how to accomplish such thing would be really appreciated -
> I spent hours on this and I'm completely stuck.
>
> TIA,
>
> JJ[/color]

Try something like:
$x=preg_replace ('/(http\:\/\/\S+)/i',"http://mysite?myurl=$1 "",$x);

--
Justin Koivisto - spam@koivi.com
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