(PHP Extension) PC/SC List Smart Card Readers (and USB Tokens)

See more SCard Examples

Demonstrates how to list the smart card readers and USB tokens connected to the computer.

Note: This functionality was introduced in Chilkat v9.5.0.87.

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<?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");

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$scard = new CkSCard();

// First establish a context to the PC/SC Resource Manager
$success = $scard->EstablishContext('user');
if ($success == false) {
    print $scard->lastErrorText() . "\n";
    exit;
}

$stReaders = new CkStringTable();
$success = $scard->ListReaders($stReaders);
if ($success == false) {
    print $scard->lastErrorText() . "\n";
    exit;
}

$numReaders = $stReaders->get_Count();
$i = 0;
while ($i < $numReaders) {
    print $i . ': ' . $stReaders->stringAt($i) . "\n";
    $i = $i + 1;
}

// Sample output:
// 0: Alcor Micro USB Smart Card Reader 0
// 1: FS USB Token 0
// 2: FT Java Token 0
// 3: SCM Microsystems Inc. SCR33x USB Smart Card Reader 0
// 4: Yubico YubiKey OTP+FIDO+CCID 0

// Applications should always release the context when finished.
$success = $scard->ReleaseContext();
if ($success == false) {
    print $scard->lastErrorText() . "\n";
}


?>