How can I get SQL error in php?
How can I get SQL error in php?
Description ¶ Instead, use mysql_error() to retrieve the error text. Note that this function only returns the error text from the most recently executed MySQL function (not including mysql_error() and mysql_errno()), so if you want to use it, make sure you check the value before calling another MySQL function.
How can I get error in PDO?
PDO will simply set the error code for you to inspect using the PDO::errorCode() and PDO::errorInfo() methods on both the statement and database objects; if the error resulted from a call on a statement object, you would invoke the PDOStatement::errorCode() or PDOStatement::errorInfo() method on that object.
How can I get error message in php?
Quickly Show All PHP Errors The quickest way to display all php errors and warnings is to add these lines to your PHP code file: ini_set(‘display_errors’, 1); ini_set(‘display_startup_errors’, 1); error_reporting(E_ALL);
How can I see Mysqli error messages?
Just simply add or die(mysqli_error($db)); at the end of your query, this will print the mysqli error.
What is a PDO exception?
PHP Data Objects (or PDO ) are a collection of APIs and interfaces that attempt to streamline and consolidate the various ways databases can be accessed and manipulated into a singular package. Thus, the PDOException is thrown anytime something goes wrong while using the PDO class, or related extensions.
How do I log errors in PHP?
To log errors in PHP, open the php. ini file and uncomment/add the following lines of code. If you want to enable PHP error logging in individual files, add this code at the top of the PHP file. ini_set(‘display_errors’, 1); ini_set(‘display_startup_errors’, 1); error_reporting(E_ALL);
Where is the SQL error log?
By default, the error log is located at Program Files\Microsoft SQL Server\MSSQL. n \MSSQL\LOG\ERRORLOG and ERRORLOG. n files.
How do I view MySQL logs?
You have to activate the query logging in mysql.
- edit /etc/my.cnf [mysqld] log=/tmp/mysql.log.
- restart the computer or the mysqld service service mysqld restart.
- open phpmyadmin/any application that uses mysql/mysql console and run a query.
- cat /tmp/mysql.log ( you should see the query )
What is PDO PHP extension?
The PHP Data Objects ( PDO ) extension defines a lightweight, consistent interface for accessing databases in PHP. Each database driver that implements the PDO interface can expose database-specific features as regular extension functions.
What does PDO stand for in PHP?
PHP Data Objects
PDO is an acronym for PHP Data Objects. PDO is a lean, consistent way to access databases. This means developers can write portable code much easier. PDO is not an abstraction layer like PearDB. PDO is a more like a data access layer which uses a unified API (Application Programming Interface).
What is PHP report error?
The error_reporting() function specifies which errors are reported. PHP has many levels of errors, and using this function sets that level for the current script.
How do I read SQL errors?
Each error message has a unique error number. The error message contains diagnostic information about the cause of the error. Many error messages have substitution variables in which information, such as the name of the object generating the error, is inserted. Severity The severity indicates how serious the error is.