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Re: PHP parser XML

Posted by CK on 05/25/07 19:39

Tom wrote:

>
> "CK" <nospams@nospams.com> wrote in message
> news:oEC5i.24262$gk7.118002@wagner.videotron.net...
>> Roy Kaldung wrote:
>>
>> > CK wrote:
>> >> Hello Folks,
>> >> My environment is : FreeBSD 6 , apache 1.3.7 and PHP5
>> >> I want to parse a big XML file (39MB) . In my php.ini I set
> memory_limit
>> >> to 64M but I still have a error message followed :
>> >> Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to
>> >> allocate 57 bytes) ...
>> >>
>> >> Your helps would be appreciated .
>> >> Thanks
>> >
>> > Hi,
>> >
>> > try to parse your XML with an SAX Parser
>> > instead a DOM parser (-> )if possible. A Dom parser builds a complete
>> > tree of the XML file in memory, a SAX parser is 'event driven'. For
>> > event driven parsing see http://www.php.net/manual/en/ref.xml.php
>> >
>> > hth,
>> > Roy
>>
>> Thank you . I tried some examples from
>> http://www.php.net/manual/en/ref.xml.php but my XML file is really too
>> big . Do you know is some free XML parser out there on the net can
>> display the structure of XML file ? I visit MagicParser.com but we have
>> to buy.
>>
>
> If you can't find anything for PHP, you might check the Perl CPAN site to
> see if someone might already have a module you could use. Depending what
> you needed maybe "XML" or "XML::Simple".
>
> Since you're running FreeBSD, it might be worth chekcing ports too.
>
> Tom

Thanks Tom,

I tried simplexml_load_file from http://ca.php.net/simplexml_load_file .
It seems to take time to parse my XML file.
Let me explain to you my problem :
I have to download to my serveur every day a big XML file (about 40MB ).
The content of this XML file is about the location,products, description,
price, etc. . I have to write a PHP program to do the search (with
selection criteria) about the products into this file .
The time to parse this XML file is about 15 secs . And I do not want that
ervery one who visit my page would wait at least 15 secs . So that I want
is to load only once this file into an objet according to
simplexml_load_file ( $xml_product
=simplexml_load_file('myXMLfile.xml') ) .
Do you know how to define that objet globally so that every one who visit my
page does not have to read or load the XML file ?

 

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