pg_get_pid
    (PHP 4 >= 4.3.0, PHP 5)
pg_get_pid -- Gets the backend's process ID
Description
int 
pg_get_pid ( resource connection )
   pg_get_pid() gets the backend's (database server
   process) PID. The PID is useful to determine whether or not a NOTIFY
   message received via pg_get_notify() is sent from another process
   or not.
  
Parameters
   
- connection
 
       PostgreSQL database connection resource.
      
 
  Return Values
   The backend database process ID.
  
Examples
   
Example 1. PostgreSQL backend PID 
<?php  $conn = pg_pconnect("dbname=publisher"); if (!$conn) {   echo "An error occured.\n";   exit; }
  // Backend process PID. Use PID with pg_get_notify() $pid = pg_get_pid($conn); ?>
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