<?php $data = [ 'aaa|45.85[u]52.22 - 43.75 - 36.5[d]25.75', 'bbb|238.4[u]345.45 - 24.1[d]13.85 - 56.4[d]56' ]; $result = []; foreach ($data as $element) { if (preg_match("#^([^|]+)\|(?:[^\]]+\])?(\S+) - (?:[^\]]+\])?(\S+) - (?:[^\]]+\])?(\S+)$#", $element, $matches)) { $result[$matches[1]] = ['num1' => $matches[2], 'num2' => $matches[3], 'num3' => $matches[4]]; } } var_export($result);
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