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(PHP 5 >= 5.1.0)

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 result resource.

Note: 此函數將 NULL 字段設置為 PHP NULL 值。

參數

result

PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).

Column number, zero-based, to be retrieved from the result resource. Defaults to the first column if not specified.

返回值

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.

范例

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);

?>

參見

pg_fetch_all() - 從結果中提取所有行作為一個數組