What steps can be taken to troubleshoot and fix syntax errors in PHP code that is not displaying expected results from a database query?

To troubleshoot and fix syntax errors in PHP code that is not displaying expected results from a database query, you can start by checking for any typos or missing semicolons in your SQL query. Make sure that the database connection is properly established and that the query is executed correctly. You can also use error handling functions like mysqli_error() to identify any specific errors. 

// Example PHP code snippet to troubleshoot and fix syntax errors in database query

// Establish a connection to the database
$connection = mysqli_connect("localhost", "username", "password", "database");

// Check if the connection is successful
if (!$connection) {
    die("Connection failed: " . mysqli_connect_error());
}

// Define the SQL query
$sql = "SELECT * FROM table_name WHERE condition = 'value'";

// Execute the query
$result = mysqli_query($connection, $sql);

// Check if the query was executed successfully
if (!$result) {
    die("Error executing query: " . mysqli_error($connection));
}

// Fetch and display the results
while ($row = mysqli_fetch_assoc($result)) {
    echo $row['column_name'] . "<br>";
}

// Close the connection
mysqli_close($connection);

Keywords

syntax errors PHP code database query troubleshooting fix

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