What are the best practices for handling arrays with a large number of values in PHP to avoid performance issues?

When dealing with arrays containing a large number of values in PHP, it is important to consider memory usage and performance. One way to avoid performance issues is to use generators instead of arrays when possible. Generators allow you to iterate over a large set of data without loading it all into memory at once. This can help reduce memory consumption and improve performance.

// Example of using a generator instead of an array for processing a large set of data
function largeDataSetGenerator() {
    for ($i = 0; $i < 1000000; $i++) {
        yield $i;
    }
}

foreach (largeDataSetGenerator() as $value) {
    // Process each value
    echo $value . PHP_EOL;
}