(PHP 5 >= 5.3.3, PHP 7, PHP 8)
PDO::pgsqlCopyToFile — Copy data from table into file
$table_name
, string $filename
, string $delimiter
= '\t'
, string $null_as
= "\\\\N"
, string $fields
= ?
) : bool
Copies data from table into file specified by filename
using delimiter
as fields delimiter and fields
list
table_name
String containing table name
filename
Filename to export data
delimiter
Delimiter used in file specified by filename
null_as
How to interpret null values
fields
List of fields to insert
Returns true
on success, 或者在失败时返回 false
.