Fw: [PHP] preg_replace - understanding

----- Original Message -----
From: "Micah Montoy" <montmica@isu.edu>
To: <php-general@lists.php.net>
Sent: Tuesday, July 08, 2003 4:01 PM
Subject: [php] preg_replace - understanding


> I'm trying to understand how the code works within the preg_replace
function
> but the manual is just obscure as the examples are. Anyway, I am looking
to
> use it to replace "\\" in a string with "/" and I can not figure how how.
> At first, I thought I could just do:
>
> $filevalue = preg_replace("'\\', /", $filevalue);
>
> but it doesn't do anything. If someone could relate what it is and what
the
> parts mean between the (), I would appreciate it.
>
> thanks

You're not using the function correctly. You've got the search string and
replace string tied up into one input there. They need to be separate.

$filevalue = preg_replace('\\', '/', $filevalue);
http://www.php.net/manual/en/function.preg-replace.php

However you should consider using the str_replace() function in your case
since you aren't doing any pattern matching and it's a lot faster than
preg_replace().

$filevalue = str_replace('\\'. '/', $filevalue);
http://www.php.net/manual/en/function.str-replace.php

--
Kevin

I took a look at the str_replace function and it will work but I am getting
a weird thing happening now. When I do:

$filevalue = str_replace("\\", "/", $filevalue);

it is reversing the "\\" to "//" but not replacing them with just a single
"/".

What may be causing this?

thanks


"Kevin Stone" <kevin@helpelf.com> wrote in message
news:002801c345a1$e5147440$6500a8c0@kevin...
>
> ----- Original Message -----
> From: "Micah Montoy" <montmica@isu.edu>
> To: <php-general@lists.php.net>
> Sent: Tuesday, July 08, 2003 4:01 PM
> Subject: [php] preg_replace - understanding
>
>
> > I'm trying to understand how the code works within the preg_replace
> function
> > but the manual is just obscure as the examples are. Anyway, I am
looking
> to
> > use it to replace "\\" in a string with "/" and I can not figure how
how.
> > At first, I thought I could just do:
> >
> > $filevalue = preg_replace("'\\', /", $filevalue);
> >
> > but it doesn't do anything. If someone could relate what it is and what
> the
> > parts mean between the (), I would appreciate it.
> >
> > thanks
>
> You're not using the function correctly. You've got the search string and
> replace string tied up into one input there. They need to be separate.
>
> $filevalue = preg_replace('\\', '/', $filevalue);
> http://www.php.net/manual/en/function.preg-replace.php
>
> However you should consider using the str_replace() function in your case
> since you aren't doing any pattern matching and it's a lot faster than
> preg_replace().
>
> $filevalue = str_replace('\\'. '/', $filevalue);
> http://www.php.net/manual/en/function.str-replace.php
>
> --
> Kevin
>
>

> $filevalue = str_replace("\\", "/", $filevalue);
>
> it is reversing the "\\" to "//" but not replacing them with just a single
> "/".

I think you need to escape your \ so each \ is \\ so your string should be
"\\\\"

Never mind. Its working.

thanks

----- Original Message -----
From: "Jennifer Goodie" <goodie@apollointeractive.com>
To: "Micah Montoy" <montmica@isu.edu>; <php-general@lists.php.net>
Sent: Tuesday, July 08, 2003 5:43 PM
Subject: RE: [php] preg_replace - understanding


> > $filevalue = str_replace("\\", "/", $filevalue);
> >
> > it is reversing the "\\" to "//" but not replacing them with just a
single
> > "/".
>
> I think you need to escape your \ so each \ is \\ so your string should be
> "\\\\"
>
>
>