$s = '||||||||name=小强__job=助理__desc=还行||name=小花__job=秘书__desc=漂亮||||';
foreach( explode('||', str_replace('__', '&', trim($s, '|'))) as $item) {
  parse_str($item, $t);
  $r[] = $t;
}

print_r($r);