(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
pg_fetch_assoc — Fetch a row as an associative array
pg_fetch_assoc() returns an associative array that corresponds to the fetched row (records).
   pg_fetch_assoc() is equivalent to calling
   pg_fetch_array() with PGSQL_ASSOC as the
   optional third parameter. It only returns an associative array.
   If you need the numeric indices, use 
   pg_fetch_row().  
  
Note: This function sets NULL fields to the PHP
nullvalue.
pg_fetch_assoc() is NOT significantly slower than using pg_fetch_row(), and is significantly easier to use.
resultAn PgSql\Result instance, returned by pg_query(), pg_query_params() or pg_execute()(among others).
row
       Row number in result to fetch. Rows are numbered from 0 upwards. If
       omitted or null, the next row is fetched.
      
   An array indexed associatively (by field name).
   Each value in the array is represented as a 
   string.  Database NULL
   values are returned as null.
  
   false is returned if row exceeds the number
   of rows in the set, there are no more rows, or on any other error.
  
| Version | Description | 
|---|---|
| 8.1.0 | The resultparameter expects an PgSql\Result
  instance now; previously, a resource was expected. | 
Example #1 pg_fetch_assoc() example
<?php 
$conn = pg_connect("dbname=publisher");
if (!$conn) {
  echo "An error occurred.\n";
  exit;
}
$result = pg_query($conn, "SELECT id, author, email FROM authors");
if (!$result) {
  echo "An error occurred.\n";
  exit;
}
while ($row = pg_fetch_assoc($result)) {
  echo $row['id'];
  echo $row['author'];
  echo $row['email'];
}
?>