What potential issues can arise when trying to manipulate large datasets in PHP?

One potential issue when manipulating large datasets in PHP is memory exhaustion due to the script trying to load the entire dataset into memory at once. To solve this, you can process the data in chunks or use streaming techniques to avoid loading the entire dataset into memory at once. 

// Example of processing data in chunks to avoid memory exhaustion
$chunkSize = 1000;
$totalRows = count($largeDataset);
$numChunks = ceil($totalRows / $chunkSize);

for ($i = 0; $i < $numChunks; $i++) {
    $chunk = array_slice($largeDataset, $i * $chunkSize, $chunkSize);
    
    // Process the chunk of data here
}

Keywords

memory limit execution time out of memory PHP functions database queries

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