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
설명
pg_fetch_all_columns() returns an array that contains all rows (records) in a particular column of the result resource.
Note: 이 함수는 NULL 필드를 PHP NULL 값으로 설정합니다.
매개변수
- 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.
반환값
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.
예제
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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