On Dec 19, 2007 6:08 PM, Jim Lucas <lists@xxxxxxxxx> wrote:
>
> Daniel Brown wrote:
> > On Dec 19, 2007 4:10 PM, Christoph Boget <christoph.boget@xxxxxxxxx> wrote:
> >> I've been looking through the docs but haven't found an internal function
> >> that does what I'm looking for. Perhaps I missed it? Or perhaps someone
> >> can point me in the right direction? I'm looking for a routine that will
> >> convert tags to lower case. For example, if I have
> >>
> >> <HTML>
> >> <HEAD>
> >> <TITLE>This is the Page Title</TITLE>
> >> </HEAD>
> >> <Body>
> >> Here is the Page Text
> >> </Body>
> >> </HTML>
> >>
> >> I want to convert only the tags to lower case. So <HTML> becomes <html> and
> >> so on; I don't want anything else touched. This may seem kind of silly but
> >> I'm working with an XMLDocument object in javascript and when I serialize it
> >> to string format, for some reason all the tags are made into uppercase. I'm
> >> taking the serialized string, posting it back to the server and using it on
> >> the back end. I figure that since I can make it so that the serialized
> >> string is lower case on the front end, perhaps I can convert it on the back.
> >>
> >> Any ideas/pointers?
> >>
> >> thnx,
> >> Christoph
> >>
> >
> >
> > <?
> > $s = <<<EOD
> > <HTML>
> > <HEAD>
> > <TITLE>This is the Page Title</TITLE>
> > </HEAD>
> > <Body>
> > Here is the Page Text
> > </Body>
> > </HTML>
> > EOD;
> >
> > $s = preg_replace('/<(.*)>/Ue',"strtolower('<$1>')",$s);
>
> Nice use of the 'e' modifier, but would it not be safer to use this?
>
> $s = preg_replace('/<(.*)>/U', strtolower("<$1>"), $s);
>
> This way the arbitrary html is not executed?
>
> >
> > echo $s."\n";
> > ?>
That won't work because preg_replace() doesn't know to evaluate
the output of strtolower().
At least in my test case that's how it works.
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Daniel P. Brown
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