Re: serialize & unserialize

Please use the same versions on both hosts, so they use and understand the same format. And also ask such questions next time on php-general@lists.php.net (our support mailing list). Regards, Gabor Hojtsy Alexey írta:

Hello, webmaster! Recently I collided with a surprising problem. I made a script which creates an array with some informatnion, serializes this array and writes to the file. Very simple.

             <?
             $ar=array(
             //array
             );
             $new=serialize($ar);
             R_fwrite('new.txt',$new); // function, which writes to the file
             ?>

Ok, this works in my localhost server (Windows XP, Apache 1.3, PHP 4.3.0) and in the Internet (Linux, Apache/1.3.28 (Unix), PHP Version 4.3.4). BUT! I created a file new.txt in the Internet, which contains a serialized array, and then I download it to my computer. After that I tried to read it and unserialize in order to continue use this array.

             <?
             $file="new.txt";
             $fopen=fopen($file,r);
             flock($fopen, LOCK_SH);
             $fread=fread($fopen,filesize($file);
             flock($fopen, LOCK_UN);
             $string=unserialize($fread);
             ?>

    Surprisingly, it doesnt works! I mean, in WindowsXP I cannot unserialize an
    object which I serialized in Linux! I tested every line and I see:
    <? echo $fread; ?> works (I see a string in browser), but command
    <? echo $string; ?> doesn't! It returns an empty string... Why
    could it be? But it certainly works if I serialize&unserialize
    only in localhost or only in server.

Beforehand thanks.