What potential pitfalls can arise when handling memory limits in PHP for file imports?

When handling memory limits in PHP for file imports, potential pitfalls include running out of memory when importing large files, causing the script to fail. To solve this issue, you can increase the memory limit in the php.ini file or use techniques like reading the file line by line instead of loading the entire file into memory at once. 

// Set memory limit to 512MB
ini_set('memory_limit', '512M');

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

// Read the file line by line
while (($line = fgets($file)) !== false) {
    // Process each line as needed
}

// Close the file
fclose($file);

Keywords

memory limits PHP file imports memory exhaustion error handling

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