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Processing big DB tables with Laravel's chunk() method

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Povilas Korop shared a neat trick at today.

Let’s imagine the situation: you have a big database table (like 10 000 rows or bigger) and you need to run an update to one column. But you cannot run just SQL query – there is some PHP logic behind it. So foreach loop could potentially take forever or bump into a default 30-second script limit. Luckily, Laravel has a neat solution for it.

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