What is the significance of defining the variable $id as $_POST["id"] in the PHP code for data deletion?

Defining the variable $id as $_POST["id"] in PHP code for data deletion is significant because it allows the script to securely retrieve the value of "id" from the POST request. This helps prevent SQL injection attacks and ensures that only the intended data is deleted. By using $_POST["id"], we are accessing the value sent via a POST request, which is typically used for sensitive data operations like deletion. 

$id = $_POST["id"];

// Proceed with data deletion using $id

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PHP variable $_POST data deletion significance

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