[PHP 5, PHP 7, PHP 8] Nội dung chínhmysqli_connect_error
mysqli::$connect_error -- mysqli_connect_error — Returns a description of the last connection error
Description
Object-oriented style
Procedural style
mysqli_connect_error[]: ?string
Parameters
This function has no parameters.
Return Values
A string that describes the error.
null is returned if no error occurred.
Examples
Example #1 $mysqli->connect_error example
Object-oriented style
The above example will output something similar to:
1049: Unknown database 'nonexistentdb' 1146: Table 'kossu.nonexistenttable' doesn't exist
See Also
- mysql_errno[] - Returns the numerical value of the error message from previous MySQL operation
- » MySQL error codes
aleczapka _at] gmx dot net ¶
18 years ago
If you want to display errors like "Access denied...", when mysql_error[] returns "" and mysql_errno[] returns 0, use $php_errormsg. This Warning will be stored there. You need to have track_errors set to true in your php.ini.
Note. There is a bug in either documentation about error_reporting[] or in mysql_error[] function cause manual for mysql_error[], says: "Errors coming back from the MySQL database backend no longer issue warnings." Which is not true.
Florian Sidler ¶
12 years ago
Be aware that if you are using multiple MySQL connections you MUST support the link identifier to the mysql_error[] function. Otherwise your error message will be blank.
Just spent a good 30 minutes trying to figure out why i didn't see my SQL errors.
Pendragon Castle ¶
13 years ago
Using a manipulation of josh >'s function, I created the following. It's purpose is to use the DB to store errors. It handles both original query, as well as the error log. Included Larry Ullman's escape_data[] as well since I use it in q[].