(PHP ActiveX) Extract PDF from JSON

Demonstrates how to extract a PDF file contained within JSON. The file is represented as a base64 string within the JSON. Note: This example can extract any type of file, not just a PDF file.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?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.
$success = $json->LoadFile('qa_data/json/JSR5U.json');
if ($success != 1) {
    print $json->LastErrorText . "\n";
    exit;
}

// The JSON we loaded contains this:

// 	{
// 	...
// 	...
// 	  "data": {
// 	    "content": "JVBERi0xLjQ..."
// 	  }
// 	...
// 	...
// 	}

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder')
$sb = new COM("Chilkat.StringBuilder");
$json->StringOfSb('data.content',$sb);

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData')
$bd = new COM("Chilkat.BinData");
$bd->AppendEncodedSb($sb,'base64');

$success = $bd->WriteFile('qa_output/a0015.pdf');

?>