pg_copy_from

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

pg_copy_from — 根据数组将记录插入表中

说明

pg_copy_from(
    resource $connection,
    string $table_name,
    array $rows,
    string $delimiter = ?,
    string $null_as = ?
): bool

pg_copy_from() 将数组 rows 的内容作为记录插入表中。它在内部使用了 COPY FROM SQL 命令来插入记录。

参数

connection

PostgreSQL database connection resource.

table_name

Name of the table into which to copy the rows.

rows

An array of data to be copied into table_name. Each value in rows becomes a row in table_name. Each value in rows should be a delimited string of the values to insert into each field. Values should be linefeed terminated.

delimiter

The token that separates values for each field in each element of rows. Default is TAB.

null_as

How SQL NULL values are represented in the rows. Default is \N ("\N").

返回值

成功时返回 true， 或者在失败时返回 false。

范例

示例 #1 pg_copy_from() example

<?php
   $db = pg_connect("dbname=publisher") or die("Could not connect");
   
   $rows = pg_copy_to($db, $table_name);
   
   pg_query($db, "DELETE FROM $table_name");
   
   pg_copy_from($db, $table_name, $rows);
?>

参见