array (size=4) 0 => array (size=3) 'name' => string '1' (length=1) 'parent' => string '1' (length=1) 'child' => string '1' (length=1) 1 => array (size=3) 'name' => string '22' (length=2) 'parent' => string '1' (length=1) 'child' => string '22' (length=2) 2 => array (size=3) 'name' => string '23' (length=2) 'parent' => string '1' (length=1) 'child' => string '23' (length=2) 3 => array (size=3) 'name' => string '30' (length=2) 'parent' => string '23' (length=2) 'child' => string '30' (length=2)
var
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