PHP

Find and Delete Object from JSON Array

See more JSON Examples

Demonstrates how to find an delete an object from a JSON array of objects. Chilkat2 PHP

<?php

use Chilkat2\JsonObject;

// This example will delete the "Pasta" category object from Menu B.

// {
//   "menus": [
//     {
//       "name": "Menu A",
//       "categories": [
//             {
//             "name": "Kebabs",
//             "description": "blah blah blah"
//             },
//             {
//             "name": "Burgers",
//             "description": "blah blah blah"
//             },
//             {
//             "name": "Pasta",
//             "description": "blah blah blah"
//             },
//             {
//             "name": "Appetizers",
//             "description": "blah blah blah"
//             }
//         ]
//     },
//     {
//       "name": "Menu B",
//       "categories": [
//             {
//             "name": "Kebabs",
//             "description": "blah blah blah"
//             },
//             {
//             "name": "Burgers",
//             "description": "blah blah blah"
//             },
//             {
//             "name": "Pasta",
//             "description": "blah blah blah"
//             },
//             {
//             "name": "Appetizers",
//             "description": "blah blah blah"
//             }
//         ]
//       }
//     ]
// }

$json = new JsonObject();
try {
    $json->LoadFile('qa_data/json/menus.json');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// Find Menu B.
$menu = $json->FindRecord('menus', 'name', 'Menu B', true);
// assume menu is found..

// Get the categories array, and then find the index of the "Pasta" menu category.
$catArr = $menu->ArrayOf('categories');
// Assume it is found..

// Find the object where the name of the JSON member is "name", and the value is "Pasta"
$index = $catArr->FindObject('name', 'Pasta', true);
if ($index < 0) {
    echo "Pasta not found.\n";
} else {
    // Delete the "Pasta" category record from Menu B
    $catArr->DeleteAt($index);
    // Assume OK..
}

// Examine the JSON to see if it worked as expected..
$json->EmitCompact = false;
echo $json->Emit(), "\n";