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<?php $array = [ 2 => 'first=1', 3 => 'second=2', 4 => 'third=', 5 => 'first=4', 9 => 'second=3', ]; $result = []; foreach ($array as $string) { [$key, $value] = explode('=', $string, 2); if (!isset($entry) || isset($entry[$key])) { unset($entry); $result[] = &$entry; } $entry[$key] = $value; } var_export($result);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => array ( 'first' => '1', 'second' => '2', 'third' => '', ), 1 => array ( 'first' => '4', 'second' => '3', ), )

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