mysqldump syntax error

[Traduim]

I need to run this mysqldump:

<?
passthru("mysqldump --add-drop-table -hlocal -ume -pmypass database table --where=id_fitxa IN ($llista)|mysql -haway -usomeone -psomepass database");
?>

The problem is the syntax is just not correct.

If I use --where=id_fitxa<100 instead of --where=id_fitxa IN ($llista), the code works fine.

Anyway, I don't want to dump records with id_fitxa below 100, but records with id_fitxa contained in $llista.

[Traduim]

The problem was that I was trying to execute a line too long for shell.

I have solved this converting the dump into SQL sentences.