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<?php $string = '[1,[01,11,12] ,4 ,5, [20,21,22]]'; $parts = preg_split('/,(?![^\[]*\])/', $string, -1, PREG_SPLIT_DELIM_CAPTURE); $output = array(); foreach ($parts as $part) { $part = trim($part, '[] '); $output[] = explode(',', $part); } print_r($output);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [0] => 1 ) [1] => Array ( [0] => 01 [1] => 11 [2] => 12 ) [2] => Array ( [0] => 4 ) [3] => Array ( [0] => 5 ) [4] => Array ( [0] => 20 [1] => 21 [2] => 22 ) )

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