Question

这里我有一个数组，在这个数组中我还有一个名为 studentabsentId 的数组，这里实际上在 2017-04-11 和上没有studentabsentId 1 2017年4月12日

echo $json = json_encode($optionsList);

结果

 [
  {
    "studentabsentId": [
      "1",
      "2"
    ],
    "studentAbsentDate": "2017-04-11"
  },
  {
    "studentabsentId": [
      "1"
    ],
    "studentAbsentDate": "2017-04-12"
  },
  {
    "studentabsentId": [
      "2"
    ],
    "studentAbsentDate": "2017-04-13"
  }
]

studentabsentId 2缺少2017-04-11和2017-04-13，现在我想做的意思是id 2是哪个日期不存在，

预期结果

{
  "status": "Success",
  "data": [
    {
      "studentAbsentId":  "2"
      "studentAbsentDate": "2017-04-11",
       "response":"absent"
    },

 {
  "studentAbsentId":  "2"
  "studentAbsentDate": "2017-04-13",
  "response":"absent"
}
]
}

我的更新代码

$json = json_encode($optionsList);
             $result = array();
                for($i = 0; $i<count($json); $i++){
                    for($j = 0; $j<count($json[$i]->studentabsentId); $j++){
                        if($json[$i]->studentabsentId[$j] === "2"){
                            array_push($result, 
                              (object)[
                                "studentabsentId" => $json[$i]->studentabsentId[$j], 
                                "studentAbsentDate" => $json[$i]->studentAbsentDate, 
                              ]);
                        }
                    }
                }
                //echo(print_r($result));

                $expected_result = (object)[
                  "status"  => "Success",
                  "data" => $result
                ];

                echo(print_r($expected_result));

Answer 1

PHP版本，沙箱http://sandbox.onlinephpfunctions.com/code/c7991f23dc9bdd304eb50e27a06b68495564fa94：

<?php
$json = array(
 (object) [
    "studentabsentId" => array("1", "2"),
    "studentAbsentDate" => "2017-04-11"
  ],
  (object) [
    "studentabsentId" => array("1"),
    "studentAbsentDate" => "2017-04-12"
  ],
  (object) [
    "studentabsentId" => array("2"),
    "studentAbsentDate" => "2017-04-13"
  ]
);
//echo(print_r($json));

$result = array();
for($i = 0; $i<count($json); $i++){
    for($j = 0; $j<count($json[$i]->studentabsentId); $j++){
        if($json[$i]->studentabsentId[$j] === "2"){
            array_push($result, 
              (object)[
                "studentabsentId" => $json[$i]->studentabsentId[$j], 
                "studentAbsentDate" => $json[$i]->studentAbsentDate, 
              ]);
        }
    }
}
//echo(print_r($result));

$expected_result = (object)[
  "status"  => "Success",
  "data" => $result
];

echo(print_r($expected_result));
?>

JS版jsfiddle https://jsfiddle.net/czdqqegq/

var json =  [
  {
    "studentabsentId": [
      "1",
      "2"
    ],
    "studentAbsentDate": "2017-04-11"
  },
  {
    "studentabsentId": [
      "1"
    ],
    "studentAbsentDate": "2017-04-12"
  },
  {
    "studentabsentId": [
      "2"
    ],
    "studentAbsentDate": "2017-04-13"
  }
];
var result = [];

for(var i = 0; i<json.length; i++){
  for(var j =0; j<json[i].studentabsentId.length; j++){
    if(json[i].studentabsentId[j] === "2"){ /*Filter out where ID is 2*/
        result.push({
          "studentAbsentId" : json[i].studentabsentId[j],
          "studentAbsentDate" : json[i].studentAbsentDate      
        });
    }
  }
}
var expected_results = {
  "status" : "Success",
  "data" : result
}
console.log(expected_results);

如何找到json字符串中存在的特定值

1 个答案: