preg_match_all
alberto
I have a problem. I have to do preg_match_all part of a very long
string and the function does not allow me. the premise that I can not
divide my regex in sub regex.
What should I do?
thanks!
"Álvaro G. Vicario"
No code and no error messages so here's my wild guess... Are you getting
the classical "Allowed memory size of XXXXXX bytes exhausted" error message?
I've done some simple testing with a 8 MB string and it can use huge
amounts of memory. You can raise the limit with ini_set() but it may not
be practical to allocate 1GB of RAM for each script instance.
Options I can think of:
1. Use a faster (compiled) language instead of PHP.
2. Preprocess the source string so you can split it safely into smaller
parts.
3. Think of an entirely different algorithm. A regexp that's fine for a
swear word filter may not be appropriate for a spell checker.
--
-- http://alvaro.es - �lvaro G. Vicario - Burgos, Spain
-- Mi sitio sobre programaci�n web: http://borrame.com
-- Mi web de humor satinado: http://www.demogracia.com
--
alberto
<alvaro.NOSPAMTH...@demogracia.com.invalid> wrote:
> El 28/12/2009 15:07, alberto escribió:
>
> > I have a problem. I have to do preg_match_all part of a very long
> > string and the function does not allow me. the premise that I can not
> > divide my regex in sub regex.
> > What should I do?
>
> No code and no error messages so here's my wild guess... Are you getting
> the classical "Allowed memory size of XXXXXX bytes exhausted" error message?
>
> I've done some simple testing with a 8 MB string and it can use huge
> amounts of memory. You can raise the limit with ini_set() but it may not
> be practical to allocate 1GB of RAM for each script instance.
>
> Options I can think of:
>
> 1. Use a faster (compiled) language instead of PHP.
> 2. Preprocess the source string so you can split it safely into smaller
> parts.
> 3. Think of an entirely different algorithm. A regexp that's fine for a
> swear word filter may not be appropriate for a spell checker.
>
> --
> -- Mi sitio sobre programación web:http://borrame.com
thank for the answer Alvaro
I've already changed the ini_set() but still make error.
I try to explain.
I've to do a preg_match_all of a string from poin A to point B the
result should be a string of 290370 character ( number calculated from
strlen function )
If I made a smaller point A to B the preg_math_all works fine.
I hope I have explained correctly as possible
"Álvaro G. Vicario"
> On 28 Dic, 16:24, "�lvaro G. Vicario"
> <alvaro.NOSPAMTH...@demogracia.com.invalid> wrote:
>> El 28/12/2009 15:07, alberto escribi�:
>>
>>> I have a problem. I have to do preg_match_all part of a very long
>>> string and the function does not allow me. the premise that I can not
>>> divide my regex in sub regex.
>>> What should I do?
>>
>> No code and no error messages so here's my wild guess... Are you getting
>> the classical "Allowed memory size of XXXXXX bytes exhausted" error message?
>>
>> I've done some simple testing with a 8 MB string and it can use huge
>> amounts of memory. You can raise the limit with ini_set() but it may not
>> be practical to allocate 1GB of RAM for each script instance.
>>
>> Options I can think of:
>>
>> 1. Use a faster (compiled) language instead of PHP.
>> 2. Preprocess the source string so you can split it safely into smaller
>> parts.
>> 3. Think of an entirely different algorithm. A regexp that's fine for a
>> swear word filter may not be appropriate for a spell checker.
> I've already changed the ini_set() but still make error.
What error? What makes you think error messages are not relevant?
> I try to explain.
> I've to do a preg_match_all of a string from poin A to point B the
> result should be a string of 290370 character ( number calculated from
> strlen function )
> If I made a smaller point A to B the preg_math_all works fine.
> I hope I have explained correctly as possible
Alright, let's summarize what we have so far:
1. You have a long string
2. You apply a pattern
3. You get an error
With such information, the only possible advice is: fix your code ;-)
--
-- http://alvaro.es - �lvaro G. Vicario - Burgos, Spain
-- Mi sitio sobre programaci�n web: http://borrame.com
alberto
> -- Mi sitio sobre programaci n web:http://borrame.com
> -- Mi web de humor satinado:http://www.demogracia.com
> --
becouse there is no message error from preg_match_all.
However I found the error was that I had not inserted / s at the end
of the regex pattern.
thanks