PHP ActiveX Requires Chilkat v11.6.0+

Close an MCP Session

Demonstrates Mcp.Close, which explicitly terminates the MCP session by sending an HTTP DELETE with the Mcp-Session-Id header and releasing the connection.

Background. The Model Context Protocol (MCP) lets a client interact with a server's tools, resources, and prompts over a standard JSON-RPC interface. This example connects to the public, no-authentication Microsoft Learn MCP server at https://learn.microsoft.com/api/mcp over Streamable HTTP.

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<?php

$success = 0;

$mcp = new COM("Chilkat.Mcp");

//  Connect to a public MCP (Model Context Protocol) server over its Streamable HTTP endpoint.  The
//  Microsoft Learn MCP server is public and requires no authentication.
$success = $mcp->Connect('https://learn.microsoft.com/api/mcp');
if ($success == 0) {
    print $mcp->LastErrorText . "\n";
    exit;
}

//  Explicitly terminate the MCP session.  This sends an HTTP DELETE with the Mcp-Session-Id header
//  and releases the connection.
$success = $mcp->Close();
if ($success == 0) {
    print $mcp->LastErrorText . "\n";
    exit;
}

print 'Session closed.' . "\n";

?>