What are the best practices for implementing page existence checks in PHP to ensure reliability and accuracy?

When implementing page existence checks in PHP, it is important to ensure reliability and accuracy by using functions like file_exists() or get_headers(). These functions can help verify if a page or file exists before proceeding with any further actions in your code. 

// Using file_exists() function to check if a page exists
$page_url = 'https://www.example.com/page';
if (file_exists($page_url)) {
    // Page exists, proceed with further actions
    echo 'Page exists!';
} else {
    // Page does not exist, handle accordingly
    echo 'Page does not exist.';
}

Keywords

error handling file_exists is_file HTTP status codes reliability

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