Are there any specific MySQL functions or techniques that can be utilized to streamline the process of finding previous and next records within a category in PHP?

When trying to find the previous and next records within a category in MySQL using PHP, you can utilize the `LAG` and `LEAD` window functions along with a `WHERE` clause to filter records based on the category. This allows you to efficiently retrieve the previous and next records within the same category. 

// Assume $currentRecordId is the ID of the current record
// Assume $category is the category of the current record

// Query to find the previous record within the same category
$queryPrevious = "SELECT * FROM your_table
                  WHERE id < $currentRecordId
                  AND category = '$category'
                  ORDER BY id DESC
                  LIMIT 1";

// Query to find the next record within the same category
$queryNext = "SELECT * FROM your_table
              WHERE id > $currentRecordId
              AND category = '$category'
              ORDER BY id ASC
              LIMIT 1";

// Execute the queries and fetch the results as needed

Keywords

MySQL functions techniques streamline previous records next records

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