Today I recieved the question from one of our clients that they could not use the ckfinder any more. When checking I recieve these warnings:
Warning: mysql_real_escape_string() [function.mysql-real-escape-string]: Access denied for user 'root'@'localhost' (using password: NO) in /***/***/domains/***.***/public_html/ckfinder/core/connector/php/php5/Utils/Security.php on line 72
Warning: mysql_real_escape_string() [function.mysql-real-escape-string]: A link to the server could not be established in /***/***/domains/***.***/public_html/ckfinder/core/connector/php/php5/Utils/Security.php on line 72
Warning: session_start() [function.session-start]: The session id is too long or contains illegal characters, valid characters are a-z, A-Z, 0-9 and '-,' in /**/***/domains/***.***/public_html/ckfinder/config.php on line 2
The first 2 messages are repeated about 10 times then the last one in showing. To my knowledge and the edit dates I see on the FTP there has not been a change in the files for atleast a year. It has worked without these warnings untill a couple of weeks ago.
What would cause these warnings and how could I fix them.
Kind regards,
Martijn
The source of the error suggests that you are using a modified version of CKFinder as the original code does not have any references to mysql_real_escape_string(). Unless you store files in a database or log actions to the database, this code might not be needed at all.
This (most probably) hasn't anything to do with ckeditor but with your app config / php setup.
Check your database connection / credentials and wether you use mysql_real_escape_string() somewhere before actually having a database connection. (errors 1 and 2)
Concerning the last error, do you set a custom session id?