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pg_fetch_all_columns

(PHP 5 >= 5.1.0, PHP 7)

pg_fetch_all_columnsFetches all rows in a particular result column as an array

Description

pg_fetch_all_columns ( resource $result [, int $column = 0 ] ) : array

pg_fetch_all_columns() returns an array that contains all rows (records) in a particular column of the result resource.

Note: This function sets NULL fields to the PHP null value.

Parameters

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.

Return Values

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.

Examples

Example #1 pg_fetch_all_columns() example

<?php 
$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
  echo "An error occurred.\n";
  exit;
}

$result = pg_query($conn, "SELECT title, name, address FROM authors");
if (!$result) {
  echo "An error occurred.\n";
  exit;
}

// Get an array of all author names
$arr = pg_fetch_all_columns($result, 1);

var_dump($arr);

?>

See Also

© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.pg-fetch-all-columns.php