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(PHP Extension) Find and Delete Object from JSON ArrayDemonstrates how to find an delete an object from a JSON array of objects.
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // 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 CkJsonObject(); $success = $json->LoadFile('qa_data/json/menus.json'); if ($success == false) { print $json->lastErrorText() . "\n"; exit; } // Find Menu B. // menu is a CkJsonObject $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 is a CkJsonArray $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) { 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->put_EmitCompact(false); print $json->emit() . "\n"; ?> |
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