pg_fetch_all_columns
(PHP 5 >= 5.1.0, PHP 7)
pg_fetch_all_columns — Fetches 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
nullvalue.
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
- pg_fetch_all() - Fetches all rows from a result as an array
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https://www.php.net/manual/en/function.pg-fetch-all-columns.php