Warning: Attempt to read property "num_rows" on bool in C:\Users\sheik\OneDrive\Desktop\New folder (2)\lawyer Dairy\model\search.php on line 190 results found.
Question
Warning: Attempt to read property "num_rows" on bool in C:\Users\sheik\OneDrive\Desktop\New folder (2)\lawyer Dairy\model\search.php on line 190 results found.
Solution
It seems like you're experiencing a PHP error. This error is occurring because you're trying to access the "num_rows" property on a boolean value. This usually happens when a MySQLi query fails.
Here's a step-by-step guide to help you debug this issue:
-
Check your SQL query: The error is likely due to your SQL query failing, which is why it's returning a boolean (false) instead of a result set. Make sure your SQL query is correct.
-
Error Handling: Add error handling to your MySQLi queries. This will help you identify what's causing the query to fail. Here's an example of how you can do this:
$result = $conn->query($sql);
if (!$result) {
die('Invalid query: ' . $conn->error);
}
-
Check Database Connection: Make sure you're able to connect to your database successfully. If your database connection is failing, your query will also fail.
-
Use num_rows correctly: Ensure you're using "num_rows" correctly. It should be used on a result set, not a boolean. Here's an example:
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "id: " . $row["id"]. " - Name: " . $row["name"]. "<br>";
}
} else {
echo "0 results";
}
Remember, always sanitize your inputs to prevent SQL injection attacks.
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