PHP.INI Memory Error


I read the wiki and followed it correctly (I think). When I try to backup my database, I get the following error message:

b>Fatal error: Allowed memory size of 94371840 bytes exhausted (tried to allocate 72237057 bytes) in /home/hidden for security reasons

I pulled the default from dreamhost and even increased the memory to 128m with this command in my php.ini file.

memory_limit = 128M

Does anyone know what the problem could be?

Which wiki entry did you follow? I use the shell method with sqldump.