Are there best practices for reading and outputting large files in PHP to prevent memory exhaustion?

Reading and outputting large files in PHP can lead to memory exhaustion if the entire file is loaded into memory at once. To prevent this, it is best to read and output the file line by line or in chunks, rather than loading the entire file into memory. 

$filename = 'large_file.txt';

// Open the file for reading
$handle = fopen($filename, 'r');

// Output the file line by line
while (!feof($handle)) {
    echo fgets($handle);
}

// Close the file handle
fclose($handle);

Keywords

file_get_contents fopen fread memory_limit output buffering

Related Questions