pg_field_name

Descripción

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.

Lista de parámetros

Valores retornados

The field name, or FALSE on error.

Ejemplos

Ejemplo 1. Getting information 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";   } ?> El resultado del ejemplo seria: 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

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