postgres array type

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hello
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I have a problem with postgres in php .
I want to insert a php array by insert command .
" insert $array into test " ;
I find that it can only be in the string format :
        {{t,f,t},{f,t,f}}
and can not be a php array .
and it don't apply its dimension restrictions .
with select command I can't select a filed that is an
array and must select directly one element of the
array
by specifying its dimansion .


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