Is there a way to get the mysql error string message when we only know the code number of the error, taken by mysql_errno() command?
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3 Answers
You can get information about what sort of error fired (see e.g.: server error messages). But you cant associate the error code to the detail error message. So the mapping will give you the type of error which happened but:
mysql_error() will always give more information in addition to mysql_errno.
2 Comments
Zosimas
I see, at least can I get the type somehow?
fyr
You may get the type by reverse mapping the error code to the associated string template in the file share/errmsg.txt of your mysql distribution. Another option would be the evaluation of the logs if you have an associated timestamp.
There can be server or client errors.
See here: http://dev.mysql.com/doc/refman/5.0/en/error-handling.html
2 Comments
Zosimas
I mean server error ofcourse. But is there a command that returns the string message by the error number?
CristiC
I don't know of a command for this. But you can put them in a table and based on the error no. take the string. Check also here: briandunning.com/error-codes/?source=MySQL
The command mysql_errno() doesn't just return a number, in most cases it is used hand in hands with mysql_error. You can use mysql_error to return the text of the error message from previous MySQL operation.
If you encounter a case where it doesn't return some text, refer this section in the Mysql-documentation: http://dev.mysql.com/doc/refman/5.5/en/error-handling.html
2 Comments
Zosimas
So I can get only the last error that happened and not a string of an error that happened sometime before, and I only know the number of this error?
Bjoern
Exactly. For that php would need kindof a library for all mysql errors, and that -at least from my perspective- ain't the purpose of php.