Warning: ftp_login() expects parameter 1 to be resource, boolean given in, error

This error is caused by bad credentials, if your hostname, username or password are wrong.

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Or if the server is not accepting your connection.

To retrieve the error, add this code: or die(“Unable to connect to server.”); after $conn_id = ftp_connect($ftp_server).

The server can also deny the connections if you make more than one and you make them in very small intervals (seconds). To solve this issue, add sleep(60); before each connection.

sleep(60); is for making your script to wait 60 seconds before moving to the next lines of code (the next ftp connection).

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