mysqli to postgres database - php

Question

I create a script to insert data from a mysqli database to a postgres database
<?php
$conn = new mysqli(...........);
if ($conn->connect_error) {
die("Connection fialed: " . $conn->connect_error);
}
else
{
echo "MySQL connection successfull\n";
}
$db = pg_connect(.................);
if(!$db){
echo "Error : Unable to open database\n";
} else {
echo "PostgreSQL connection successfull\n";
}
$sql = "SELECT * FROM crm_subscriptions";
echo $sql . "\n";
$result = $conn->query($sql);
echo $conn->error . "\n";
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
$psql = "
INSERT INTO subscriptions_sub (id,cust_id,tarrif_id,des,datetime_created,datetime_modified,credit,credit_limit,status,date_start,date_end,backoffice_userref,backoffice_deleted,backoffice_createdon,backoffice_createdby, backoffice_updatedon,backoffice_updatedby,backoffice_administration,backoffice_readonly,backoffice_order,backoffice_dummy)
VALUES('" .(int) $row["subscription_id"] . "','" . (int) $row["customer_id"] . "','" . (int) $row["tariffplan_id"] . "','" . $row["description"] . "',NULLIF('" . $row["datetime_created"] . "','0000-00-00 00:00:00')::timestamp,NULLIF('" . $row["datetime_modified"] . "','0000-00-00 00:00:00')::timestamp,'" . (int) $row["credit"] . "','" . (int) $row["credit_limit"] . "','" . $row["status"] . "',NULLIF('" . $row["date_start"] . "','')::timestamp,NULLIF('" . $row["date_end"] . "','')::timestamp,'" . (int) $row["backoffice_userref"] . "','" . (int) $row["backoffice_deleted"] . "',NULLIF('" . $row["backoffice_createdon"] . "','0000-00-00 00:00:00')::timestamp,'" . (int) $row["backoffice_createdby"] . "',NULLIF('" . $row["backoffice_updatedon"] . "','0000-00-00 00:00:00')::timestamp,'" . (int) $row["backoffice_updatedby"] . "','" . (int) $row["backoffice_administration"] . "','" . (int) $row["backoffice_readonly"] . "','" . (int) $row["backoffice_order"] . "','" . (int) $row["backoffice_dummy"] . "');
";
print_r($row);
$ret = pg_query($db, $psql);
if(!$ret){
echo pg_last_error($db);
} else {
echo "Records created succesfully\n";
}
}
} else {
echo "0 results \n";
}
?>
When I run it I get this error:
invalid input syntax for type timestamp: "" in
/home/ruud/Database2.php on line 38 ERROR: invalid input syntax
for type timestamp: ""root#149-210-204-94:/home/ruud# ERROR:
invalid input syntax for type timestamp: ""Array
datetime_created and datetime_modified are from type TIMESTAMP date_start and date_end are from type DATE backoffice_createon and backoffice_update on are from type DATETIME

Answer 1

You need to install a postgres driver/module, as mysqli is the driver for mysql.
sudo apt-get install php5-pgsql
Or if the package is installed, you need to enable de module in php.ini
extension=php_pgsql.dll (windows)
extension=php_pgsql.so (linux)
you may already have it installed. check your phpinfo();