Why Does My MySQL Query in PHP Only Return One Row?

MySQL Query Returns Only One Row: Debugging and Resolution

When working with MySQL, encountering instances where a PHP script only retrieves a single row can be perplexing. This issue arises when the query itself is valid, but the script's implementation prevents it from retrieving all expected rows.

Troubleshooting the Issue

Consider the PHP code provided, which executes a query to retrieve rows from the fastsearch table:

$query = mysql_query("SELECT `title`, `url_title` FROM `fastsearch` WHERE `tags` LIKE '%$q%' LIMIT 5");
$query2 = mysql_fetch_assoc($quer);
print_r($query2);

Although the SQL query returns multiple rows, the script shows only one row. This behavior occurs because mysql_fetch_assoc() fetches only a single row by default. To retrieve all the rows, we need to iterate through them using a loop.

Solution: Using while loop to Retrieve Multiple Rows

The corrected code snippet would use a while loop to iterate through the query results and print each row:

$query = mysql_query("SELECT `title`, `url_title` FROM `fastsearch` WHERE `tags` LIKE '%$q%' LIMIT 5");

while ($row = mysql_fetch_assoc($query)) {
    print_r($row);
}

In this updated code, mysql_fetch_assoc() is called within the loop, and the $row variable is assigned the current row. This allows the loop to iterate through each row in the query results, allowing for the printing of all rows.

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