pg_fetch_all_columns
(PHP 5 >= 5.1.0, PHP 7, PHP 8)
pg_fetch_all_columns — Fetches all rows in a particular result column as an array
說明
pg_fetch_all_columns() returns an array that contains all rows (records) in a particular column of the PgSql\Result instance.
注意: 此函式將 NULL 欄位設定為 PHP
null值。
參數
-
result An PgSql\Result instance, returned by pg_query(), pg_query_params() or pg_execute()(among others).
-
field Column number. Defaults to the first column if not specified.
返回值
An array with all values in the result column.
更新日誌
| 版本 | 說明 |
|---|---|
| 8.1.0 | 現在 result 參數接受 PgSql\Result 實例，之前接受 資源(resource)。 |
範例
示例 #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);
?> 參見
- pg_fetch_all() - 從結果中提取所有行作為一個陣列