pg_executepg_fetch_all_columns
(PHP 5 >= 5.1.0)
pg_fetch_all_columns — Fetches all rows in a particular result column as an array
Descrizione
pg_fetch_all_columns() returns an array that contains all rows (records) in a particular column of the result resource.
Nota: Questa funzione imposta i campio NULL al valore PHP NULL.
Elenco dei parametri
- result
-
PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).
- column
-
Column number, zero-based, to be retrieved from the result resource. Defaults to the first column if not specified.
Valori restituiti
An array with all values in the result column.
FALSE is returned if column is larger than the number of columns in the result, or on any other error.
Esempi
Example #1 pg_fetch_all_columns() example
<?php
$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
echo "An error occured.\n";
exit;
}
$result = pg_query($conn, "SELECT title, name, address FROM authors");
if (!$result) {
echo "An error occured.\n";
exit;
}
// Get an array of all author names
$arr = pg_fetch_all_columns($result, 1);
var_dump($arr);
?>
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