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(PHP ActiveX) Modify Parts of JSON DocumentDemonstrates how to modify parts of a JSON document. This example uses the following JSON document: { "fruit": [ { "kind": "apple", "count": 24, "fresh": true, "extraInfo": null, "listA": [ "abc", 1, null, false ], "objectB": { "animal" : "monkey" } }, { "kind": "pear", "count": 18, "fresh": false, "extraInfo": null "listA": [ "xyz", 24, null, true ], "objectB": { "animal" : "lemur" } } ], "list" : [ "banana", 12, true, null, "orange", 12.5, { "ticker": "AAPL" }, [ 1, 2, 3, 4, 5 ] ], "alien" : true }
<?php // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject') $json = new COM("Chilkat.JsonObject"); // Load the JSON from a file. $success = $json->LoadFile('qa_data/json/modifySample.json'); if ($success != 1) { print $json->LastErrorText . "\n"; exit; } // This example will not check for errors (i.e. null / false / 0 return values)... // Get the "list" array: // listA is a Chilkat.JsonArray $listA = $json->ArrayOf('list'); // Modify values in the list. // Change banana to plantain $success = $listA->SetStringAt(0,'plantain'); // Change 12 to 24 $success = $listA->SetIntAt(1,24); // Change true to false $success = $listA->SetBoolAt(2,0); // Is the 3rd item null? $bNull = $listA->IsNullAt(3); // Change "orange" to 32. $success = $listA->SetIntAt(4,32); // Change 12.5 to 31.2 $success = $listA->SetNumberAt(5,'31.2'); // Replace the { "ticker" : "AAPL" } object with { "ticker" : "GOOG" } // Do this by deleting, then inserting a new object at the same location. $success = $listA->DeleteAt(6); $success = $listA->AddObjectAt(6); // tickerObj is a Chilkat.JsonObject $tickerObj = $listA->ObjectAt(6); $success = $tickerObj->AddStringAt(-1,'ticker','GOOG'); // Replace "[ 1, 2, 3, 4, 5 ]" with "[ "apple", 22, true, null, 1080.25 ]" $success = $listA->DeleteAt(7); $success = $listA->AddArrayAt(7); // aa is a Chilkat.JsonArray $aa = $listA->ArrayAt(7); $success = $aa->AddStringAt(-1,'apple'); $success = $aa->AddIntAt(-1,22); $success = $aa->AddBoolAt(-1,1); $success = $aa->AddNullAt(-1); $success = $aa->AddNumberAt(-1,'1080.25'); // Get the "fruit" array // aFruit is a Chilkat.JsonArray $aFruit = $json->ArrayAt(0); // Get the 1st element: // appleObj is a Chilkat.JsonObject $appleObj = $aFruit->ObjectAt(0); // Modify values by member name: $success = $appleObj->SetStringOf('fruit','fuji_apple'); $success = $appleObj->SetIntOf('count',46); $success = $appleObj->SetBoolOf('fresh',0); $success = $appleObj->SetStringOf('extraInfo','developed by growers at the Tohoku Research Station in Fujisaki'); // Modify values by index: // pearObj is a Chilkat.JsonObject $pearObj = $aFruit->ObjectAt(1); $success = $pearObj->SetStringAt(0,'bartlett_pear'); $success = $pearObj->SetIntAt(1,12); $success = $pearObj->SetBoolAt(2,0); $success = $pearObj->SetStringAt(3,'harvested in late August to early September'); $json->EmitCompact = 0; print $json->emit() . "\n"; ?> |
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