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(PHP Extension) Demonstrates how to Handle Large Integers in JSONSee more JSON ExamplesDemonstrates how to handle large integers in JSON. (Integers larger than what can fit in a 32-bit signed integer.)
<?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"); // Let's say your JSON has this: // { // "id": 20000000001234567 // } $json = new CkJsonObject(); $success = $json->LoadFile('qa_data/json/large_int.json'); if ($success == false) { print $json->lastErrorText() . "\n"; exit; } // The integer is too large for a 32-bit signed integer that is returned by IntOf. // The result will be something that wrapped around and could be negative. // In this case it would be: -543893881 $id = $json->IntOf('id'); print 'id: ' . $id . "\n"; // The solution is to read the integer value as a string, and then use the features in your programming language // to convert from a string to a 64-bit integer. // // Alternatively, you may wish to simply hold the value as a string. If, for example, the integer simply references // an order ID, an account ID, etc., then there's no need to convert to an integer value. You're not going to be doing // mathematical operations on it anyway. This is usually the case for large integers -- they typically exist // in JSON as an account ID. // You can get any JSON value as a string: $accountId = $json->stringOf('id'); print 'accountId: ' . $accountId . "\n"; // Sample output: // id: -543893881 // accountId: 20000000001234567 ?> |
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