I was exploring some of the dynamic alignment programs for protein and DNA used by biologists and came across a data construct that I didn't understand...could someone explain the square bracket/square bracket/curly bracket reference construct and comment on it being a good/bad way to go about dynamic matrix declaration

@matrix;
$matrix[0][0]{score}   = 0;
$matrix[0][0]{pointer} = "none";
for($j = 1; $j <= length($seq1); $j++) {
     $matrix[0][$j]{score}   = 0;
     $matrix[0][$j]{pointer} = "none";
}
for ($i = 1; $i <= length($seq2); $i++) {
     $matrix[$i][0]{score}   = 0;
     $matrix[$i][0]{pointer} = "none";

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In reply to Matrix Declaration / Data Structure Syntax Question by oxirane

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