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<?php $array = [ '1.1', '1.2', '1.3', '2.1', '2.2', '2.3', '3.1', '3.2', ]; $result = [null]; // temporary declaration unset($result[0]); // move pointer to 1 for next push foreach ($array as $v) { sscanf($v, '%d', $major); if (!isset($ref[$major])) { $result[] = &$ref[$major]; $ref[$major] = [null]; // temporary declaration unset($ref[$major][0]); // move pointer to 1 for next push } $ref[$major][] = $v; } var_export($result);
Output for git.master, git.master_jit
/bin/php-git-master: error while loading shared libraries: libonig.so.5: cannot open shared object file: No such file or directory
Process exited with code 127.
Output for rfc.property-hooks
array ( 1 => array ( 1 => '1.1', 2 => '1.2', 3 => '1.3', ), 2 => array ( 1 => '2.1', 2 => '2.2', 3 => '2.3', ), 3 => array ( 1 => '3.1', 2 => '3.2', ), )

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