# pg_copy_from

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

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

Example #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

- pg_copy_to() - 将一个表拷贝到数组中