difference between uni-directional and bi-directional relational relationship?

Posted by ajsie on Stack Overflow See other posts from Stack Overflow or by ajsie
Published on 2010-04-20T01:56:25Z Indexed on 2010/04/20 2:03 UTC
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i wonder what these two words mean.

i encountered them in Doctrine's documentation.

but i cant understand what they mean.

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