PHP 5.4.36 Released

pg_put_line

(PHP 4 >= 4.0.3, PHP 5)

pg_put_line向 PostgreSQL 后端发送以 NULL 结尾的字符串

说明

bool pg_put_line ([ resource $connection ], string $data )

pg_put_line() 向 PostgreSQL 后端服务器发送以 NULL 结尾的字符串。例如可以通过 PostgreSQL 的 COPY 操作来向表中高速插入数据。结尾的 NULL 字符会自动加入。

COPY is a high-speed data loading interface supported by PostgreSQL. Data is passed in without being parsed, and in a single transaction.

An alternative to using raw pg_put_line() commands is to use pg_copy_from(). This is a far simpler interface.

Note:

应用程序必须明确地在 pg_end_copy() 之前最后一行发送两个字符 "\." 来向后端指明发送数据结束。

Warning

Use of the pg_put_line() causes most large object operations, including pg_lo_read() and pg_lo_tell(), to subsequently fail. You can use pg_copy_from() and pg_copy_to() instead.

参数

connection

PostgreSQL database connection resource. When connection is not present, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().

data

A line of text to be sent directly to the PostgreSQL backend. A NULL terminator is added automatically.

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE

范例

Example #1 pg_put_line() 例子

<?php 
  $conn 
pg_pconnect("dbname=foo");
  
pg_query($conn"create table bar (a int4, b char(16), d float8)");
  
pg_query($conn"copy bar from stdin");
  
pg_put_line($conn"3\thello world\t4.5\n");
  
pg_put_line($conn"4\tgoodbye world\t7.11\n");
  
pg_put_line($conn"\.\n");
  
pg_end_copy($conn);
?>

参见

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kurt at nospam dot milliganshome dot net
9 years ago
This is the function you need if you are running into the infamous "must be superuser to COPY to or from a file" error from postgres.
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