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(PHP ActiveX) Firebase GET - Reading DataDemonstrates how to read parts of a Firebase JSON database. The data used in this example is at Chilkat Firebase Pigs Database, and is shown here:
<?php // Demonstrates how to read parts of a Firebase JSON database. // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // This example assumes a JWT authentication token, if required, has been previously obtained. // See Get Firebase Access Token from JSON Service Account Private Key for sample code. // Load the previously obtained Firebase access token into a string. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.FileAccess') $fac = new COM("Chilkat.FileAccess"); $accessToken = $fac->readEntireTextFile('qa_data/tokens/firebaseToken.txt','utf-8'); if ($fac->LastMethodSuccess != 1) { print $fac->LastErrorText . "\n"; exit; } // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Rest') $rest = new COM("Chilkat.Rest"); // Make the initial connection (without sending a request yet). // Once connected, any number of requests may be sent. It is not necessary to explicitly // call Connect before each request. $success = $rest->Connect('chilkat.firebaseio.com',443,1,1); if ($success != 1) { print $rest->LastErrorText . "\n"; exit; } // If authentication is required... // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.AuthGoogle') $authGoogle = new COM("Chilkat.AuthGoogle"); $authGoogle->AccessToken = $accessToken; $rest->SetAuthGoogle($authGoogle); // Chilkat's sample data (pig-rescue data) is publicly readable at: https://chilkat.firebaseio.com/.json // Let's get the animals with the shallow parameter so we can see how many pigs exist. $jsonResponse = $rest->fullRequestNoBody('GET','/pig-rescue/animal.json?shallow=true'); if ($rest->LastMethodSuccess != 1) { print $rest->LastErrorText . "\n"; exit; } // The JSON returned should look like this: // {"-KI3bD-FU_Dake7sYOiP":true,"-KI3bD-FU_Dake7sYOiT":true,"-KI3bD-FU_Dake7sYOiS":true,"-KI3bD-FU_Dake7sYOiU":true,"-KI3bD-FU_Dake7sYOiV":true,"-KI3bD-FU_Dake7sYOiR":true,"-KI3bD-FU_Dake7sYOiQ":true} print $jsonResponse . "\n"; // Parse the response so we can iterate over each pig in the database.. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder') $piggyPath = new COM("Chilkat.StringBuilder"); // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject') $shallow = new COM("Chilkat.JsonObject"); // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject') $piggyData = new COM("Chilkat.JsonObject"); $shallow->Load($jsonResponse); $count = $shallow->Size; $i = 0; while ($i < $count) { // Get each individual pig's data. $piggyPath->Clear(); $piggyPath->Append('/pig-rescue/animal/'); $piggyPath->Append($shallow->nameAt($i)); $piggyPath->Append('/.json'); $piggyJson = $rest->fullRequestNoBody('GET',$piggyPath->getAsString()); if ($rest->LastMethodSuccess != 1) { print $rest->LastErrorText . "\n"; exit; } // Show this piggy's data... // An example of one pig's data is shown here: // {"birth":"February, 1998","from":"Middle Ave.","gender":"F","in-date":"January, 2000", // "name":"Molly II","picture":{"caption":"Molly in the Pasture","description":"Black pig","file":"molly_th.jpg"}, // "species":"pot belly pig","type":"Cathy's Herd"} print '---- ' . $i . ' ----' . "\n"; print $piggyJson . "\n"; // Let's get the pig's name, and the caption of the picture. $piggyData->Load($piggyJson); print 'name: ' . $piggyData->stringOf('name') . "\n"; print 'caption: ' . $piggyData->stringOf('picture.caption') . "\n"; $i = $i + 1; } // Note: In many of the Chilkat examples, you may notice strange ways // of doing something that should be simpler and shorter. For example, // building the piggyPath (above) could've been written differently, // with some simple string concatenation. // // The reason is that the Chilkat examples are written in a // proprietary "example code" scripting language, // and then automatically generated to each of the different programming // languages you see on example-code.com. The code generation is // limited in what it can do. For example, string concatentation // is not yet a feature of the "example code" scripting language (as of May 2016), // and therefore you won't see the use of a programming language's string // concatentation operators in any example. // ?> |
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