What potential pitfalls should I be aware of when handling and processing large arrays in PHP?

When handling and processing large arrays in PHP, you should be aware of potential memory consumption issues. One common pitfall is running out of memory when trying to manipulate a very large array. To avoid this, consider using generators instead of arrays for processing large datasets, as generators do not store the entire dataset in memory at once. 

// Using generators to process large arrays without consuming excessive memory
function processLargeArray($largeArray) {
    foreach ($largeArray as $item) {
        yield $item;
    }
}

$largeArray = range(1, 1000000); // Example large array
foreach (processLargeArray($largeArray) as $item) {
    // Process each item without storing the entire array in memory
}

Keywords

memory_limit array_chunk unset array_merge out-of-memory

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