PHP ActiveX

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. PHP ActiveX

<?php

$success = 0;

// 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 COM("Chilkat.JsonObject");
$success = $json->LoadFile('qa_data/json/menus.json');
if ($success == 0) {
    print $json->LastErrorText . "\n";
    exit;
}

// Find Menu B.
// menu is a Chilkat.JsonObject
$menu = $json->FindRecord('menus','name','Menu B',1);
// assume menu is found..

// Get the categories array, and then find the index of the "Pasta" menu category.
// catArr is a Chilkat.JsonArray
$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 = $catArr->FindObject('name','Pasta',1);
if ($index < 0) {
    print 'Pasta not found.' . "\n";
}
else {

    // Delete the "Pasta" category record from Menu B
    $success = $catArr->DeleteAt($index);
    // Assume OK..
}

// Examine the JSON to see if it worked as expected..
$json->EmitCompact = 0;
print $json->emit() . "\n";


?>