pg_convert
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");
?>
pg_copy_from
(PHP 4 >= 4.2.0, PHP 5)
pg_copy_from — Insère des lignes dans une table à partir d'un tableau
Description
bool pg_copy_from
( resource
$connection
, string $table_name
, array $rows
[, string $delimiter
[, string $null_as
]] )
pg_copy_from() insère les éléments du tableau
rows dans une table.
Cette fonction utilise la commande SQL interne COPY FROM.
Liste de paramètres
-
connection -
Ressource de connexion de base de données PostgreSQL.
-
table_name -
Nom de la table dans laquelle
rowssera copié. -
rows -
Un tableau de données à être copié à l'intérieur de
table_name. Chaque valeur dansrowsdevient une ligne danstable_name. Chaque valeur dansrowsdevrait être une chaîne délimitée par des valeurs à insérer à l'intérieur de chaque champ. Les valeurs doivent être terminées par un saut à la ligne. -
delimiter -
Le marqueur qui sépare les valeurs pour chaque champ dans chaque élément de
rows. La valeur par défaut est TAB. -
null_as -
Comment les valeurs NULL de SQL sont représentées dans
rows. La valeur par défaut est \N ("\\N").
Valeurs de retour
Cette fonction retourne TRUE en cas de
succès ou FALSE si une erreur survient.
Exemples
Exemple #1 Exemple avec pg_copy_from()
<?php
$db = pg_connect("dbname=publisher") or die("Connexion impossible");
$rows = pg_copy_to($db, $table_name);
pg_query($db, "DELETE FROM $table_name");
pg_copy_from($db, $table_name, $rows);
?>
add a note
User Contributed Notes
pg_copy_from - [7 notes]
Dave ¶
1 year ago
Dave ¶
2 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", $copy_message);
?>
Anonymous ¶
4 years ago
see also: pg_put_line for a solution that does not require buffering of all the data to be copied,
kapouer_php at melix dot org ¶
5 years ago
pg syntax is :
COPY test (cola, colb, colc) FROM stdin;
...
this function doesn't let you in which order the columns are !
vlad at php dot net ¶
10 years ago
By default NULL values are a backslash followed with capital N ("\\N").
Also, you can't insert entries with OIDs (I've added it to my TODO list though)
carl at thep.lu.se ¶
10 years ago
Something needs to be said about the format of the array.
Judging by what I've seen, it's pretty much what you get
from loading a tab-separated file with file(). That is, the
lines are linefeed-terminated and there's no need to have
an extra line with "\.". On the other hand, when I try using this
command the connection to the server ends up in some odd
state and is then lost:
PHP Warning: UåSèo() query failed: server closed the connection unexpectedly
I think it might be safer to use the lower-level function
pg_put_line() for now.
etiger13 at gmail dot com ¶
3 years ago
This will not look in other schema's, only the schema's in your search path. You can temporarily change this behavior with the following code:
<?php
pg_query($conn, "SET search_path TO myschema;");
$copy_from = pg_copy_from($conn, 'tablename', $filetoarray, ",");
if ( !$copy_from )
{
echo pg_last_error($conn);
exit;
}
pg_query("RESET search_path;");
?>