What are the best practices for handling case sensitivity in PHP when interacting with a MySQL database?

When interacting with a MySQL database in PHP, it's important to handle case sensitivity properly to avoid unexpected behavior. One common approach is to set the collation of the database tables and columns to be case-insensitive. This ensures that queries are not affected by the case of the data being compared. 

// Set the collation of the database tables and columns to be case-insensitive
$sql = "ALTER DATABASE database_name COLLATE utf8_general_ci";
mysqli_query($conn, $sql);

// Or set the collation for a specific table
$sql = "ALTER TABLE table_name COLLATE utf8_general_ci";
mysqli_query($conn, $sql);

// Or set the collation for a specific column
$sql = "ALTER TABLE table_name MODIFY column_name VARCHAR(255) COLLATE utf8_general_ci";
mysqli_query($conn, $sql);

Keywords

case sensitivity PHP MySQL database collation string comparison

Related Questions