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Can you bind a table name in a PHP PDO query?

Linda Hamilton
Linda HamiltonOriginal
2024-11-19 16:08:02327browse

Can you bind a table name in a PHP PDO query?

PHP PDO - Bind Table Name? [duplicate]

In programming, it's often necessary to dynamically interact with database tables. For instance, you may want to generate form inputs based on the columns of a specific table. Using PHP PDO, you might consider binding the table name to a query to retrieve column details.

However, this approach poses a security risk. Binding a table name allows users to access any table in your database, potentially exposing sensitive information. Instead, it's crucial to whitelist permissible table names and use a more secure approach.

One recommended solution is to create an abstract base class for database tables, such as abstractTable. This class can include common functionality, like a property to hold the table name and a method to retrieve column details.

Subsequent classes can inherit from this base class and specify their specific table names. For example, you could create a someTable class that extends abstractTable and sets its table property to 'sometable'.

Using this approach, you can safely retrieve column details for a specific table:

$pdo = new PDO(...);
$table = new someTable($pdo);
$fields = $table->describe();

This method is more secure, as it restricts access to only the whitelisted tables and prevents users from accessing arbitrary tables in your database.

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