获取到数组，请问如何将数组医院为相同医院的科室合并到depart_list中

[weixin_39771828]

array(4) {
[0]=>
array(4) {
["hospital"]=>
string(21) "鞍钢未来城医院"
["chest_card"]=>
int(0)
["device0"]=>
int(0)
["depart_list"]=>
array(1) {
[0]=>
array(2) {
["department"]=>
string(9) "会议室"
["list"]=>
array(0) {
}
}
}
}
[1]=>
array(4) {
["hospital"]=>
string(23) "月坛南街26号医院"
["chest_card"]=>
int(1)
["device0"]=>
int(0)
["depart_list"]=>
array(1) {
[0]=>
array(2) {
["department"]=>
string(7) "2035室"
["list"]=>
array(0) {
}
}
}
}
[2]=>
array(4) {
["hospital"]=>
string(23) "月坛南街26号医院"
["chest_card"]=>
int(0)
["device0"]=>
int(0)
["depart_list"]=>
array(1) {
[0]=>
array(2) {
["department"]=>
string(8) "2035A室"
["list"]=>
array(0) {
}
}
}
}
[3]=>
array(4) {
["hospital"]=>
string(23) "月坛南街26号医院"
["chest_card"]=>
int(2)
["device0"]=>
int(0)
["depart_list"]=>
array(1) {
[0]=>
array(2) {
["department"]=>
string(7) "2029室"
["list"]=>
array(0) {
}
}
}
}
}

[老虎爱代码]

array(4) {
  [0]=>
  array(4) {
    ["hospital"]=>
    string(21) "鞍钢未来城医院"
    ["chest_card"]=>
    int(0)
    ["device0"]=>
    int(0)
    ["depart_list"]=>
    array(1) {
      [0]=>
      array(2) {
        ["department"]=>
        string(9) "会议室"
        ["list"]=>
        array(0) {
        }
      }
    }
  }
  [1]=>
  array(4) {
    ["hospital"]=>
    string(23) "月坛南街26号医院"
    ["chest_card"]=>
    int(1)
    ["device0"]=>
    int(0)
    ["depart_list"]=>
    array(1) {
      [0]=>
      array(2) {
        ["department"]=>
        string(7) "2035室"
        ["list"]=>
        array(0) {
        }
      }
    }
 array(1) {
      [2]=>
      array(2) {
        ["department"]=>
        string(8) "2035A室"
        ["list"]=>
        array(0) {
        }
      }
    }
 array(1) {
      [3]=>
      array(2) {
        ["department"]=>
        string(7) "2029室"
        ["list"]=>
        array(0) {
        }
      }
    }
  }
}

[一起混吧]

贴出经var_export()输出后的数组出来