preg_replace question

preg_replace(","," ",$kw_str2);

This does not replace commas with spaces. What am I doing wrong?
Thanks,
Lee G.

.oO(leegold2)

>preg_replace(","," ",$kw_str2);
>
>This does not replace commas with spaces. What am I doing wrong?

Missing delimiters, you should have received a warning (if not check
error_reporting in your php.ini, it should be set to E_ALL).

Possible solution: preg_replace('#,#', ' ', $kw_str2); // # = delimiter

But str_replace() would be more efficient in this case.

Micha

Michael Fesser wrote:
> .oO(leegold2)
>
>
>>preg_replace(","," ",$kw_str2);
>>
>>This does not replace commas with spaces. What am I doing wrong?
>
>
> Missing delimiters, you should have received a warning (if not check
> error_reporting in your php.ini, it should be set to E_ALL).
>
> Possible solution: preg_replace('#,#', ' ', $kw_str2); // # = delimiter

What? Could you explain, I thought I put a regex pattern in there -
what's this delimiter requirement?

I have never had any luck w/this function - it does not imo work like PERL.




>
> But str_replace() would be more efficient in this case.
>
> Micha

> > Possible solution: preg_replace('#,#', ' ', $kw_str2); // # = delimiter

> I have never had any luck w/this function - it does not imo work like
PERL.

In Perl:
$kw_str2 =~ r#PATTERN#REPLACEMENT#;

In PHP:
$kw_str2 = preg_replace('#PATTERN#', 'REPLACEMENT', $kw_str2);

Where in both PATTERN is an expression and REPLACEMENT is a string

"Perl-Compatible", not Perl.
The reason it is called "Perl-compatible regexp" resides in the PATTERN
part, wich use the same expression as in Perl.

Dae

.oO(leegold2)

>What? Could you explain, I thought I put a regex pattern in there -
>what's this delimiter requirement?

http://www.php.net/manual/en/ref.pcre.php

Micha