PHP 5.4.36 Released

pg_copy_from

(PHP 4 >= 4.2.0, PHP 5)

pg_copy_from Inserisce le tuple in una tabella prendendole da un array

Descrizione

bool pg_copy_from ( resource $connessione , string $nometabella , array $tuple [, string $delimitatore [, string $null_as ]] )

pg_copy_from() inserisce le tuple in una tabella etraendole dall'array tuple. Utilizza internamente il comando OPY per inserire i record. Restituisce TRUE in caso di successo, FALSE in caso di fallimento.

Vedere anche pg_copy_to()

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User Contributed Notes 7 notes

up
1
Anonymous
5 years ago
see also: pg_put_line for a solution that does not require buffering of all the data to be copied,
up
1
kapouer_php at melix dot org
7 years ago
pg syntax is :
COPY test (cola, colb, colc) FROM stdin;
...

this function doesn't let you in which order the columns are !
up
0
Dave
9 months ago
Default is "\\\N" not "\\N" at least in php 5.4

pg_copy_from($db, $table_name, "\t", "\\\N")
up
-1
vlad at php dot net
11 years ago
By default NULL values are a backslash followed with capital N ("\\N").

Also, you can't insert entries with OIDs (I've added it to my TODO list though)
up
-1
carl at thep.lu.se
12 years ago
Something needs to be said about the format of the array.
Judging by what I've seen, it's pretty much what you get
from loading a tab-separated file with file(). That is, the
lines are linefeed-terminated and there's no need to have
an extra line with "\.". On the other hand, when I try using this
command the connection to the server ends up in some odd
state and is then lost:
PHP Warning:  USo() query failed: server closed the connection unexpectedly

I think it might be safer to use the lower-level function
pg_put_line() for now.
up
-1
Dave
2 years ago
As of postgresql 9.1 "standard_conforming_strings" is set to on

This will not work anymore
<?php
$copy_message
= "1\t\\N\t300";
pg_copy_from($db, "message", $copy_message);
?>
result will be a "N" in that field. if the field allow text that is else it will fail to insert the post.

simple fix
<?php
$copy_message
= "1\t\\NULL\t300";
pg_copy_from($db, "message", $copy_message, "\t","\\NULL");
?>
up
-3
Dave
3 years ago
Fix for "Copy command failed: ERROR: literal carriage return
found in data" or
"Copy command failed: ERROR: missing data for column
"message" CONTEXT: COPY message, line 1:"

<?php
$message
= "HEJ\rHEJ\nHEJ\r\nHEJ\n\rHEJ\tHELLO\\";

$message = addslashes($message);

$message = str_replace(
  array(
"\n","\r","\t"),
  array(
"\\n","\\r","\\t"),
 
$message);

$copy_message = "1\t". $message ."\t300";

pg_copy_from($db, "message", $copy_message);
?>
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