PHP Manual: pg_num

function pg_num_rows(PgSql\Result $result): int

pg_num_rows() will return the number of rows in an PgSql\Result instance.

Note:
This function used to be called pg_numrows().

result: An PgSql\Result instance, returned by pg_query(), pg_query_params() or pg_execute()(among others).

The number of rows in the result. On error, -1 is returned.

Version	Description
8.1.0	The `result` parameter expects an PgSql\Result instance now; previously, a resource was expected.

Example #1 pg_num_rows() example

<?php
$result = pg_query($conn, "SELECT 1");

$rows = pg_num_rows($result);

echo $rows . " row(s) returned.\n";
?>

The above example will output:

1 row(s) returned.

pg_num_rows