What is the potential issue with using eregi_replace in a while loop to replace placeholders with images fetched from a database?

Using eregi_replace in a while loop to replace placeholders with images fetched from a database can lead to performance issues as it is a deprecated function and can be inefficient for large datasets. It is recommended to use preg_replace instead, which offers more flexibility and better performance for pattern matching and replacement. Additionally, it is important to sanitize the data fetched from the database to prevent any security vulnerabilities. 

// Connect to the database and fetch data
$conn = new mysqli($servername, $username, $password, $dbname);
$result = $conn->query("SELECT * FROM images");

// Loop through the results and replace placeholders with images
while($row = $result->fetch_assoc()) {
    $content = preg_replace('/placeholder/', $row['image_url'], $content);
}

// Close the database connection
$conn->close();

Keywords

eregi_replace while loop placeholders images database

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