LOAD DATA LOCAL INFILE fails - from php, to mysql (on Amazon rds)

Question

We\'re moving our database from being on the webserver to a separate server (from an Amazon EC2 webserver to an RDS instance.)

We have a LOAD DATA INFILE that worked

Answer 1

Here's a check list to rule out this nasty bug:

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1- Grant the user FILE privileges in MySQL, phpMyAdmin generaly does not cover this privilege:

GRANT FILE ON *.* TO 'db_user'@'localhost';

2- Edit my.cnf in /etc/mysql/ or your mysql path:

[mysql]
local-infile=1
[mysqld]
local-infile=1

3- In php.ini at /etc/php5/cli/ or similar:

mysql.allow_local_infile = On

Optionally you can run ini_set in your script:

ini_set('mysql.allow_local_infile', 1);

4- The database handler library must use the correct options.
PDO:

new PDO('mysql:host='.$db_host.'.;dbname='.$db_name, $db_user, $db_pass,
array(PDO::MYSQL_ATTR_LOCAL_INFILE => 1));

mysqli:

$conn = mysqli_init();
mysqli_options($conn, MYSQLI_OPT_LOCAL_INFILE, true);
mysqli_real_connect($conn,server,user,code,database);

5- Make sure that the INFILE command uses the absolute path to the file and that it exists:

$sql = "LOAD DATA INFILE '".realpath(is_file($file))."'";

6- Check that the target file and parent directory are readable by PHP and by MySQL.

$ sudo chmod 777 file.csv

7- If you are working locally you can remove the LOCAL from your SQL:

LOAD DATA INFILE

Instead of:

LOAD DATA LOCAL INFILE

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Note: Remember to restart the MySQL and PHP services if you edit their configuration files.

Hope this helps someone.