What are some best practices for handling file operations and data parsing in PHP scripts?

When handling file operations and data parsing in PHP scripts, it is important to handle errors gracefully, validate user input, and sanitize data to prevent security vulnerabilities. Additionally, using built-in PHP functions for file operations and data parsing can help improve performance and maintainability of the code. 

// Example of reading a file line by line and parsing data
$file = fopen("data.txt", "r");

if ($file) {
    while (($line = fgets($file)) !== false) {
        $data = explode(",", $line);
        // Process data here
    }
    
    fclose($file);
} else {
    echo "Error opening file.";
}

Keywords

File handling data parsing PHP scripts error handling security vulnerabilities

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