What Are the Retrieval Limitations of mysql_fetch_array()?

Mary-Kate Olsen
Release: 2024-10-20 14:19:30
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What Are the Retrieval Limitations of mysql_fetch_array()?

Understanding the Limitation of mysql_fetch_array()

When dealing with MySQL data retrieval, the mysql_fetch_array() function plays a crucial role in extracting the results into a more convenient array format. However, it's important to understand its behavior, as it can sometimes lead to unexpected outcomes.

As illustrated in the provided code snippet, the mysql_query() function is used to execute a MySQL query, and the resulting resource is stored in the $array variable. However, when you execute mysql_fetch_array($array), it returns an array containing only the first row of the results.

This means that if the query returns multiple rows, as in the example provided where it retrieves artists starting with 'a', 'b', or 'c', you won't be able to access the remaining rows by simply accessing subsequent elements of the $array_result array.

To retrieve all the rows, you need to execute mysql_fetch_array() repeatedly until it returns FALSE, indicating that all rows have been retrieved. This can be achieved using a while loop, as demonstrated in the provided code example.

By understanding the behavior of mysql_fetch_array() and implementing the proper looping logic, you can efficiently retrieve and process multiple rows of data from MySQL.

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