What are some best practices for handling file reading and data manipulation in PHP?

When handling file reading and data manipulation in PHP, it is important to follow best practices to ensure efficient and secure operations. One common approach is to use functions like fopen, fread, and fclose for reading files, and functions like fwrite for writing data. Additionally, sanitizing user input and validating data before manipulation can help prevent security vulnerabilities. 

// Example of reading a file in PHP
$filename = "data.txt";
$handle = fopen($filename, "r");
if ($handle) {
    while (($line = fgets($handle)) !== false) {
        // Process the data here
        echo $line;
    }
    fclose($handle);
} else {
    echo "Error opening the file.";
}

Keywords

file reading data manipulation PHP functions error handling data processing

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