Interfering with html using php

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Whilst lounging around on Sat, 05 Jul 2003 10:32:20 +0100, tiago
borges da silva <tiago.borges-da-silva@rca.ac.uk> amazingly managed
to produce the following with their Etch-A-Sketch:

> Hi I'm trying to develop a php web page that allows you to type in
> the name of a web site and it will pop up with a different
> background color to the original one.
>
> I'm looking for something like:
> Type in url of site ($url)
> $url is read and bgcolor is found and changed (instead of yellow it
> becomes white)
> And window pops up with site $url having a white background.
>
>
> I'm trying a few things such as:
>
> <?
> $filename="http://www.panda-man.info/index.htm";
> $fd = fopen($filename,"r");
> $content=fread($fd, 300000);
> fclose($fd);
> $color='BGCOLOR="#FF0000/"';
> $newcolor='BGCOLOR="#FF0033/"';
> preg_replace('/$color/', $newcolor, $content);
^^^^^^^^^^^^


Waaaaaay overkill =)

RegEx takes up a fair bit more processing than an alternative. I also
think that the ' ' should be " " as it's looking for literally
'$color' rather than the value of $color.

Personally, I'd try:


$content = str_replace('#FF0000', '#FF0033', $content);


str_replace() is less processing intensive than RegEx functions so
should be more efficient too (not that you may physically notice it
here, more of a pointer in general =) ).

Again, just for efficiency, no need to store the colour values in
vars.


>
> echo($content);
>
> ?>
>
> But I'm a bit new to php and it's taking too long.
>
> Can any one give me a bit of help?
>
> Thanx very much
>
> Regards
>
>
> Tiago, ze panda-man
>
>



HTH.



Regards,

Ian

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--
Ian.H [Design & Development]
digiServ Network - Web solutions
www.digiserv.net | irc.digiserv.net | forum.digiserv.net
Programming, Web design, development & hosting.

Fantastic Ian! you're right, it worked.
I'm using variables cos it is part of a bigger script.

Is str_replace() case sensitive? I mean, would it work for BGCOLOR and
bgcolor the same way?
Or would I need to create a condition?










Thanx

tiago








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Whilst lounging around on Sat, 05 Jul 2003 10:32:20 +0100, tiago
borges da silva <tiago.borges-da-silva@rca.ac.uk> amazingly managed
to produce the following with their Etch-A-Sketch:

> Hi I'm trying to develop a php web page that allows you to type in
> the name of a web site and it will pop up with a different
> background color to the original one.
>
> I'm looking for something like:
> Type in url of site ($url)
> $url is read and bgcolor is found and changed (instead of yellow it
> becomes white)
> And window pops up with site $url having a white background.
>
>
> I'm trying a few things such as:
>
> <?
> $filename="http://www.panda-man.info/index.htm";
> $fd = fopen($filename,"r");
> $content=fread($fd, 300000);
> fclose($fd);
> $color='BGCOLOR="#FF0000/"';
> $newcolor='BGCOLOR="#FF0033/"';
> preg_replace('/$color/', $newcolor, $content);
^^^^^^^^^^^^


Waaaaaay overkill =)

RegEx takes up a fair bit more processing than an alternative. I also
think that the ' ' should be " " as it's looking for literally
'$color' rather than the value of $color.

Personally, I'd try:


$content = str_replace('#FF0000', '#FF0033', $content);


str_replace() is less processing intensive than RegEx functions so
should be more efficient too (not that you may physically notice it
here, more of a pointer in general =) ).

Again, just for efficiency, no need to store the colour values in
vars.


>
> echo($content);
>
> ?>
>
> But I'm a bit new to php and it's taking too long.
>
> Can any one give me a bit of help?
>
> Thanx very much
>
> Regards
>
>
> Tiago, ze panda-man
>
>



HTH.



Regards,

Ian

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=ukTJ
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--
Ian.H [Design & Development]
digiServ Network - Web solutions
www.digiserv.net | irc.digiserv.net | forum.digiserv.net
Programming, Web design, development & hosting.

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Whilst lounging around on Sat, 05 Jul 2003 11:29:45 +0100, tiago
borges da silva <tiago.borges-da-silva@rca.ac.uk> amazingly managed
to produce the following with their Etch-A-Sketch:

> Fantastic Ian! you're right, it worked.


Glad it worked =)


> I'm using variables cos it is part of a bigger script.


Ahh, fair enough and understood.


>
> Is str_replace() case sensitive?


Nope.


> I mean, would it work for BGCOLOR and
> bgcolor the same way?


Nope.


> Or would I need to create a condition?


Nope =P


str_ireplace() is what you're after for that =)


http://uk.php.net/manual/en/function.str-ireplace.php



Regards,

Ian

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--
Ian.H [Design & Development]
digiServ Network - Web solutions
www.digiserv.net | irc.digiserv.net | forum.digiserv.net
Programming, Web design, development & hosting.

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Whilst lounging around on Sat, 05 Jul 2003 11:02:20 GMT, "Ian.H [dS]"
<ian@WINDOZEdigiserv.net> amazingly managed to produce the following
with their Etch-A-Sketch:

> >
> > Is str_replace() case sensitive?
>
>
> Nope.


Oops, that should have been: yup =)



Regards,

Ian

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--
Ian.H [Design & Development]
digiServ Network - Web solutions
www.digiserv.net | irc.digiserv.net | forum.digiserv.net
Programming, Web design, development & hosting.

Thanx very much for your help Ian.
Have a good day


Cheerio

tiago



On 5/7/03 12:02, in article lubdgv4qur12nvnn2cciv5nb0mfeupigca@4ax.com,
"Ian.H [dS]" <ian@WINDOZEdigiserv.net> wrote:

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> Whilst lounging around on Sat, 05 Jul 2003 11:29:45 +0100, tiago
> borges da silva <tiago.borges-da-silva@rca.ac.uk> amazingly managed
> to produce the following with their Etch-A-Sketch:
>
>> Fantastic Ian! you're right, it worked.
>
>
> Glad it worked =)
>
>
>> I'm using variables cos it is part of a bigger script.
>
>
> Ahh, fair enough and understood.
>
>
>>
>> Is str_replace() case sensitive?
>
>
> Nope.
>
>
>> I mean, would it work for BGCOLOR and
>> bgcolor the same way?
>
>
> Nope.
>
>
>> Or would I need to create a condition?
>
>
> Nope =P
>
>
> str_ireplace() is what you're after for that =)
>
>
> http://uk.php.net/manual/en/function.str-ireplace.php
>
>
>
> Regards,
>
> Ian
>
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You're a star Ian!!!!


I'll send you a postcard with a special thank you.
Have a look at www.panda-man.info, that's me.


* and regards


Tiago



On 5/7/03 13:19, in article r8gdgvs5675n9dgqgbuigi8nla915u0ud2@4ax.com,
"Ian.H [dS]" <ian@WINDOZEdigiserv.net> wrote:

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> Whilst lounging around on Sat, 05 Jul 2003 12:23:52 +0100, tiago
> borges da silva <tiago.borges-da-silva@rca.ac.uk> amazingly managed
> to produce the following with their Etch-A-Sketch:
>
>> Ian, and what about if I want to change the font. The php script
>> reading the contents of a url and the body doesn't have any color
>> defined in it, so body would be <body this and that but no
>> bgcolor>, which would make the page to be white by default, but If
>> I want to include 'bgcolor="black"' inside the <body> what would be
>> the best way of doing it? With include? But what would be the best
>> way to search for '<body' and include stuff straight after it?
>
>
> The font part could be changed in a similar method:
>
>
> $content = str_replace('font="name"', 'font="new_name"', $content);
>
>
> If I understand the rest correctly, you could use RegEx for that:
>
>
> if (!preg_match("#\<body.*bgcolor.*\>#i", $content)) {
> // If bgcolor not found
> $content = str_replace('<body ', '<body bgcolor="#FF0033" ',
> $content);
> }
>
>
> This would then "insert" your bgcolor choice within the body tag if
> it's not found =)
>
>
>>
>>
>> <sorry to keep you busy with these questions>
>> tiago
>
>
> No probs =)
>
>
>
> HTH.
>
>
>
> Regards,
>
> Ian
>
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