警告：pg_query（）期望参数1为字符串，资源在[关闭]中给出

I wanted to show my database but I have this error:

Warning: pg_query() expects parameter 1 to be string, resource given in

<?php
session_start();
pg_connect("host=localhost port=5432 dbname=base_test user=postgres password=123456") or die('Could not connect: ' . pg_last_error());

$q=pg_query("select timestamp, outdoor, indoor from align_data");
$query=pg_query($q);
$n=pg_num_rows($query);
for($i=0; $i<$n; $i++)
{
    $f=pg_fetch_row($query1);
    echo("['".$f[0]."',  ".$f[1].", ".$f[2]."], ");
}                           
?>

You are using two times pg_query, use only once.

$q="select timestamp, outdoor, indoor from align_data";
$query=pg_query($q);

Use pg_query() once

$q="select timestamp, outdoor, indoor from align_data";
$query=pg_query($q);

OR

$q=pg_query("select timestamp, outdoor, indoor from align_data");
$n=pg_num_rows($q);