What are the common errors that can occur when using WHERE clauses in PHP MySQL queries?

Common errors when using WHERE clauses in PHP MySQL queries include syntax errors, incorrect column names, and improper use of quotation marks around values. To solve these issues, make sure the column names are spelled correctly, enclose string values in single quotes, and use placeholders for variables to prevent SQL injection attacks. 

// Example of a correct WHERE clause with placeholders for variables
$column = 'name';
$value = 'John';
$stmt = $pdo->prepare("SELECT * FROM users WHERE $column = :value");
$stmt->bindParam(':value', $value);
$stmt->execute();

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PHP MySQL WHERE clause errors queries

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