Are there alternative methods to address memory exhaustion issues in PHP, aside from adjusting the memory limit?

Memory exhaustion issues in PHP can be addressed by adjusting the memory limit in the php.ini file. However, if adjusting the memory limit is not feasible or effective, alternative methods to address memory exhaustion issues in PHP include optimizing code to reduce memory usage, using unset() to free up memory after variables are no longer needed, and implementing caching mechanisms to store and retrieve data efficiently.

// Example of optimizing code to reduce memory usage
// Instead of storing large arrays in memory, consider processing data in smaller chunks

$data = fetchData(); // Assume this function retrieves a large dataset
$processedData = [];

foreach ($data as $chunk) {
    $processedChunk = processChunk($chunk); // Assume this function processes a chunk of data
    $processedData[] = $processedChunk;
}

function processChunk($chunk) {
    // Process the chunk here
    return $processedChunk;
}