php man page for pg_field_num

PG_FIELD_NUM(3) 														   PG_FIELD_NUM(3)

pg_field_num - Returns the field number of the named field

SYNOPSIS
       int pg_field_num (resource  $result, string  $field_name)

DESCRIPTION
       pg_field_num(3) will return the number of the field number that corresponds to the $field_name in the given PostgreSQL $result resource.

       Note

	       This function used to be called pg_fieldnum(3).

PARAMETERS
	      o $result
		- PostgreSQL query result resource, returned by pg_query(3), pg_query_params(3) or pg_execute(3) (among others).

	      o $field_name
		- The name of the field.

RETURN VALUES
	The field number (numbered from 0), or -1 on error.

EXAMPLES
       Example #1

	      Getting information about fields

	      <?php
		$dbconn = pg_connect("dbname=publisher") or die("Could not connect");

		$res = pg_query($dbconn, "select author, year, title from authors where author = 'Orwell'");

		echo "Column 'title' is field number: ", pg_field_num($res, 'title');
	      ?>

	      The above example will output:

	      Column 'title' is field number: 2

SEE ALSO
       pg_field_name(3).

PHP Documentation Group 													   PG_FIELD_NUM(3)