Php pg field is null () function

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(PHP 4 >= 4.2.0, PHP 5)

pg_field_is_null -- Test if a field is NULL

Syntax

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.

Note: This function used to be called pg_fieldisnull().

Examples

Example 1. pg_field_is_null() example


<?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";
    }
 }
?>

Php pg field is null Function syntax tag

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Php pg field is null syntax tutorial

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