Question

您好我正在寻找如何根据ID值删除json文件中的数组。

这是我的json文件

[
    {
        date: "3/7/2017",
        title: "kjjnkjnjn",
        category: "Automobile",
        ville: "Labas",
        decription: "nlknlknklnkjlnkl",
        mail: "mathieufrobert@yahoo.fr",
        telephone: "0777878988",
        pseudo: "kknklnkln",
        prix: "10",
        mdp: "0000",
        id: "5959785fde3bc26610"
    },
    {
        date: "3/7/2017",
        title: "kjjnkjnjn",
        category: "Automobile",
        ville: "Labas",
        decription: "nlknlknklnkjlnkl",
        mail: "mathieufrobert@yahoo.fr",
        telephone: "0777878988",
        pseudo: "kknklnkln",
        prix: "10",
        mdp: "0000",
        id: "6848675fde3bc26610"
    },{
        date: "3/7/2017",
        title: "kjjnkjnjn",
        category: "Automobile",
        ville: "Labas",
        decription: "nlknlknklnkjlnkl",
        mail: "mathieufrobert@yahoo.fr",
        telephone: "0777878988",
        pseudo: "kknklnkln",
        prix: "10",
        mdp: "0000",
        id: "5737554fde3bc26610"
    }
]

这是我的php文件（它是来自另一个php的副本）

<?php
$file = $_POST["id"];

$animals = file_get_contents('text.json');

$animals = json_decode($animals, true);
foreach ($animals as $key => $value) {
    if (in_array($file, $value)) {
        unset($animals[$key]);
    }
}
$animals = json_encode($animals);
?>

我的Ajax代码

$("#5959785fde3bc26610").click(function() {
    $.ajax({
        url: "delete.php",
        type: "POST",
        data: {
            id: "5959785fde3bc26610",
        },
        success: function (result) {
            Materialize.toast('Annonce Supprimé!', 4000);
        }
    });
});

这就是我希望我的json文件看起来像

的方式

[
    {
        date: "3/7/2017",
        title: "kjjnkjnjn",
        category: "Automobile",
        ville: "Labas",
        decription: "nlknlknklnkjlnkl",
        mail: "mathieufrobert@yahoo.fr",
        telephone: "0777878988",
        pseudo: "kknklnkln",
        prix: "10",
        mdp: "0000",
        id: "6848675fde3bc26610"
    },{
        date: "3/7/2017",
        title: "kjjnkjnjn",
        category: "Automobile",
        ville: "Labas",
        decription: "nlknlknklnkjlnkl",
        mail: "mathieufrobert@yahoo.fr",
        telephone: "0777878988",
        pseudo: "kknklnkln",
        prix: "10",
        mdp: "0000",
        id: "5737554fde3bc26610"
    }
]

提前感谢您的帮助。

Answer 1

首先，您将在PHP中阅读JSON，如下所示：

<?php

$id   = $_POST['id'];

// stop if it's non-numeric
if (!preg_match('/^\d+$/', $id)) {
  die('Don’t hack us.');
}

$file = 'the.json';
$data = file_get_contents($file);
$list = json_decode($data);

// now, we will search the ID
for ($i = 0; $i < count($list); $i++) {

  // if we found it,
  if ($list[$i]->id === $id) {
    // we remove it
    unset($list[$i]);
    break;
  }
}

// make the numeric array consecutive again
$list = array_values($list);

// write the resulting JSON to disk
$fp = fopen($file, 'w');
fwrite($fp, json_encode($list));
fclose($fp);

Answer 2

我建议你使用ES6 Array.prototype.filter。

const deletePropWithId = (array, id) => {
  return array.filter((obj) => obj.id[id] !== undefined);
}

使用PHP和AJAX删除JSON文件中的数组

2 个答案: