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PHP Manual

pg_field_name

(PHP 4 >= 4.2.0)

pg_field_name -- Returns the name of a field

Description

string pg_field_name ( resource result, int field_number)

pg_field_name() returns the name of the field occupying the given field_number in the given PostgreSQL result resource. Field numbering starts from 0.

Example 1. Getting informations about fields

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

    $res = pg_query($dbconn, "select * from authors where author = 'Orwell'");
    $i = pg_num_fields($res);
    for ($j = 0; $j < $i; $j++) {
        echo "column $j\n";
        $fieldname = pg_field_name($res, $j);
        echo "fieldname: $fieldname\n";
        echo "printed length: " . pg_field_prtlen($res, $fieldname) . " characters\n";
        echo "storage length: " . pg_field_size($res, $j) . " bytes\n";
        echo "field type: " . pg_field_type($res, $j) . " \n\n";
    }
?>

The above example would produce the following output:

column 0 fieldname: author printed length: 6 characters storage length: -1 bytes field type: varchar   column 1 fieldname: year printed length: 4 characters storage length: 2 bytes field type: int2   column 2 fieldname: title printed length: 24 characters storage length: -1 bytes field type: varchar

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