What potential issues can arise when saving data with special characters in PHP?

When saving data with special characters in PHP, potential issues can arise due to character encoding mismatches. To solve this, it is important to ensure that the data is properly encoded before saving it to the database. This can be done by using functions like htmlspecialchars() or htmlentities() to encode the special characters. 

// Example code snippet to properly encode special characters before saving data to the database
$data = $_POST['data']; // Assuming data is coming from a form submission

// Encode special characters before saving to the database
$encoded_data = htmlspecialchars($data, ENT_QUOTES, 'UTF-8');

// Save the encoded data to the database
// Your database query here

Keywords

SQL injection htmlentities htmlspecialchars addslashes UTF-8.

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