pg_field_is_null

Test if a field is NULL (PHP 4 >= 4.2.0)
int pg_field_is_null ( resource result, int row, mixed field )

pg_field_is_null() tests if a field is NULL or not. It returns 1 if the field in the given row is NULL. It returns 0 if the field in the given row is NOT NULL. Field can be specified as column index (number) or fieldname (string). Row numbering starts at 0.

Example 756. pg_field_is_null() example

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<?php
   $dbconn = pg_connect("dbname=publisher") or die ("Could not connect");
   $res = pg_query($dbconn, "select * from authors where author = 'Orwell'");
   if ($res) {
       if (pg_field_is_null($res, 0, "year") == 1) {
           echo "The value of the field year is null.\n";
       }
       if (pg_field_is_null($res, 0, "year") == 0) {
           echo "The value of the field year is not null.\n";
     }
  }
?>
Note:

This function used to be called pg_fieldisnull().

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