How to delete records Exapmle from PHP & MySQL
PHP uses mysqli query() or mysql_query() function to delete records in a MySQL table. This function takes two parameters and returns TRUE on success or FALSE on failure.
Syntax
$mysqli->query($sql,$resultmode)
| Sr.No. | Parameter & Description |
|---|---|
| 1 | $sql Required - SQL query to delete records in a MySQL table. |
| 2 | $resultmode Optional - Either the constant MYSQLI_USE_RESULT or MYSQLI_STORE_RESULT depending on the desired behavior. By default, MYSQLI_STORE_RESULT is used. |
Example
Try the following example to delete a record in a table −
Copy and paste the following example as mysql_example.php −
Deleting MySQL Table record
connect_errno ) { printf("Connect failed: %s
", $mysqli->connect_error); exit(); } printf('Connected successfully.
'); if ($mysqli->query('DELETE FROM tutorials_tbl where tutorial_id = 4')) { printf("Table tutorials_tbl record deleted successfully.
"); } if ($mysqli->errno) { printf("Could not delete record from table: %s
", $mysqli->error); } $sql = "SELECT tutorial_id, tutorial_title, tutorial_author, submission_date FROM tutorials_tbl"; $result = $mysqli->query($sql); if ($result->num_rows > 0) { while($row = $result->fetch_assoc()) { printf("Id: %s, Title: %s, Author: %s, Date: %d
", $row["tutorial_id"], $row["tutorial_title"], $row["tutorial_author"], $row["submission_date"]); } } else { printf('No record found.
'); } mysqli_free_result($result); $mysqli->close(); ?>
Output
Access the mysql_example.php deployed on apache web server and verify the output. Here we've entered multiple records in the table before running the select script.
Connected successfully. Table tutorials_tbl record deleted successfully. Id: 1, Title: MySQL Tutorial, Author: Mahesh, Date: 2021 Id: 2, Title: HTML Tutorial, Author: Mahesh, Date: 2021 Id: 3, Title: PHP Tutorial, Author: Mahesh, Date: 2021 Id: 5, Title: Apache Tutorial, Author: Suresh, Date: 2021
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