How can PHP handle varying query results with different numbers of columns and rows when displaying them on a webpage?
When handling varying query results with different numbers of columns and rows in PHP, we can use functions like `mysqli_num_rows()` and `mysqli_num_fields()` to determine the number of rows and columns in the result set. We can then dynamically generate HTML tables or lists based on these numbers to display the data on a webpage.
// Assuming $result is the result set from a query
if ($result) {
$num_rows = mysqli_num_rows($result);
$num_cols = mysqli_num_fields($result);
echo "<table>";
for ($i = 0; $i < $num_rows; $i++) {
$row = mysqli_fetch_array($result);
echo "<tr>";
for ($j = 0; $j < $num_cols; $j++) {
echo "<td>" . $row[$j] . "</td>";
}
echo "</tr>";
}
echo "</table>";
} else {
echo "No results found.";
}
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