(PHP 5 >= 5.3.3)
PDO::pgsqlCopyFromFile — Copy data from file into table
$table_name
   , string $filename
   [, string $delimiter = '\t'
   [, string $null_as = "\\\\N"
   [, string $fields
  ]]] )
   Copies data from file specified by filename into table table_name
   using delimiter as fields delimiter and fields list
  
table_nameString containing table name
filenameFilename containing data to import
delimiter
       Delimiter used in file specified by filename
      
null_asHow to interpret null values
fieldsList of fields to insert
   Returns TRUE on success, or FALSE on failure.