PHP Array Chunk
Last Updated on Feb 14, 2023
Sometimes you have to deal with a very large array of data. It would be much better to split the array in different chunks and work on each chunk one at a time.
For example if you have an array with 1000 elements you can split it in arrays of 10 or 100.
Array chunk is going to help you do exactly that.
It takes 3 arguments
array is the original array
Length is the length of each chunk
PreserveKey is false by default. It reindexes your array with numerical values. But if you have an associative array and you want to keep the keys as is, make sure to set this to true
Let’s see an example
I have an array of 5 people (it’s not big I know but imagine it’s 500) and I want to split it into arrays with length of 2. And I want my keys to stay the same. So let’s see the code
$people = [ 'php' => 'amir', 'feedhive' => 'simon', 'twitter' => 'pratham', 'docker' => 'francesco', 'web3' => 'oliver' ]; $chunks = array_chunk($people,2,true); //$chunks = array_chunk($people,2,true); // Array ( //  => Array ( // [php] => amir // [feedhive] => simon // ) //  => Array ( // [twitter] => pratham // [docker] => francesco // ) //  => Array ( // [web3] => oliver // ) // )
As you can see it has returned an array of arrays. Each array is in length 2 except the last one which is in length 1 because there were no other items.
Now you can access each array and work on them. array_chunk is a great function isn’t it?
Now you know about array chunck function in PHP.
I recommend you to open a PHP files and try to define an array. then try to search the values inside it and see the result.
If you have any suggestions, questions, or opinions, please contact me. I’m looking forward to hearing from you!
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- split array into smaller chunks