fetchrow

fetchrow is a function commonly found in database access libraries and programming languages, particularly those dealing with relational databases. Its primary purpose is to retrieve the next available row from a result set returned by a database query. When a query is executed, it typically returns a collection of rows, and fetchrow is used to iteratively process these rows one by one.

The behavior of fetchrow varies slightly depending on the specific library or language. Often, it returns the row as an array, an associative array (where column names are keys), or an object. If there are no more rows to retrieve, fetchrow usually returns a null value or an empty result, signaling the end of the iteration. This allows developers to loop through the results and perform operations on each individual record, such as displaying data, performing calculations, or updating other parts of an application.

In many contexts, fetchrow is used in conjunction with functions that execute queries, such as `mysqli_query` in PHP or similar functions in other languages. The workflow typically involves executing a query, obtaining a result resource, and then repeatedly calling fetchrow on that resource until all rows have been fetched. This systematic approach is fundamental to interacting with and processing data from databases.