ssh2_auth_pubkey_file : Can't Get To Work PART 2

I recently posted a question titled “ssh2_auth_pubkey_file: Can't Get To Work”. I found a solution and posted an answer.

The PHP file in that article was invoked from the command line. This time I’m trying (unsuccessfully) to invoke it from a web form. The file is mostly the same, and both files I’m using are at the same level on the same server. The following message appears in /var/log/apache2/error.log

*…PHP Warning: ssh2_auth_pubkey_file(): Authentication failed for <my username> using public key: Unable to open public key file in /var/www/html/test.php on line 12, referer: http://<my server’s IP#>/test.htm *

I’m guessing the problem has to do with owners or permissions somewhere, but I can’t get that worked out. Anyone have an idea of why authentication fails from web page invoking? Thanks for any assistance. Code from files ….

Simple HTML form - test.htm.

<!DOCTYPE html> 
<html lang="en-US"> 
<form method="post" action="test.php"> 
<p><button type="submit" >Submit</button>&nbsp;<button type="reset" >Reset</button></p> 

Simple PHP file - test.php

$host = "receiving server IP"; 
$port = 22; 
$conn = ssh2_connect($host, $port); 
$username = "my username"; 
$pub_key = "/home/my username/.ssh/"; 
$pri_key = "/home/my username/.ssh/id_rsa"; 
   echo "Authentication succeeded"; 
   echo "Authentication failed"; 
// eventual scp code here to send file to receiving server.
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