Base64 Decode To PDF - Save PDF On Server?

Dec 1, 2009

How can I take a base64 encoded PDF and decode it then save it on my server for linking back to the saved file later? I have searched for some time now on multiple forms and with google, and I have come up empty handed for anything that can even push me in the right direction. Maybe my search terms are poorly constructed, The string that is the base64 encoded pdf comes to me via an xml feed and is dynamically generated through the USPS system. I have tested the encoded strings in 3rd party apps I have found along my search for finding a way to do it with php, and it does work in those.

So if anyone has any experience with this, or can point me towards a decent document (other than the php.net site for the encode manual) that can help me out, or if anyone wants to throw me a demo concept to work with,

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Decode PHP Base64

Jul 31, 2007

have been trying to decode using base64 but was unsucessful. What is the proper way to decode base64. Here is the file I am trying to decode.

<?php $_F=__FILE__;$_X='P0Q+P1lUWQ0gdSoJdElySy1JeEtjWXctS31Hb3pZVFkJKnUNIElySUljdkdfSXd9S3coKTsNIA0gY0d4MX QucigndElySy1JeEtjWXctSVR9S3IuemNHeHpZVFknKTsNIA0gJC5zLUR9Li5fS31Hb2NHaigkX008TmgzJ2NCfWpyYy4nUiw2JF 9NPE5oMyd9MXN0QmMuJ1IsNiRfTTxOaDMnS31Hb0p9MXRyJ1IpOw0gDSANID9E'$_D=strrev('edoced_46esab');eval($_D ('JF9YPWJhc2U2NF9kZWNvZGUoJF9YKTskX1g9c3RydHIoJF9YLCd1VzVQOFZrb2xjSFFTWHkyRm0gNFJ0Cnc8MGhiM11nSmpwRT ZNZjc9VT5LTGlBR3hhMXo5WmRldltuTy5zWVRESU57Q31CcXIvJywnL0QwNTN4Mms5aVZNezdacTRHCkpddUF0T0JUNltFSHZnS1 ggUH04akw8cj15MW5jUWwuTndXVW9SSUZkYnBoPnNTWXphbUNlZicpOyRfUj1zdHJfcmVwbGFjZSgnX19GSUxFX18nLCInIi4kX0 YuIiciLCRfWCk7ZXZhbCgkX1IpOyRfUj0wOyRfWD0wOw=='));?>

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I have implemented the base64_encode) function with some custom  mapping table so I could encode some binary data more securely without anyone knowing how to decode it here is the class

<?php 
class Base64 {
/**
* I have changed letter placement (P <=> x, S <=> 9) and the cases
* You can completely redo the mapping table
*/
private static $BinaryMap = array(
[Code]....

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if($img !== false)

[code]...

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PHP Code:
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