Are there best practices for handling memory limits when processing files larger than 100 MB in PHP?

When processing files larger than 100 MB in PHP, it is important to handle memory limits efficiently to avoid running out of memory. One way to address this is by reading the file in chunks instead of loading the entire file into memory at once. By reading and processing the file in smaller segments, you can reduce memory usage and prevent memory limit issues. 

// Set memory limit to handle large files
ini_set('memory_limit', '256M');

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

// Read and process the file in chunks
while (!feof($handle)) {
    $chunk = fread($handle, 8192); // Read 8KB at a time
    // Process the chunk here
}

// Close the file
fclose($handle);

Keywords

memory limits file processing large files PHP optimization

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