PHP array slicing extracts elements from beginning

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Release: 2024-04-29 15:45:01
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PHP array slicing function array_slice() can extract a subset of consecutive elements from the beginning of the array. Syntax: array_slice($array, 0, $length), where $array is the array to be processed, 0 is the starting index (starting from 0), and $length is the number of elements to be extracted.

PHP array slicing extracts elements from beginning

PHP Array Slice: Extract elements from the beginning

The PHP array slice function (array_slice()) allows you to extract from an array A contiguous subset of elements. To extract elements from the beginning of an array, you can use the following syntax:

array_slice($array, 0, $length);
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  • $array: The array to process.
  • 0: Starting index of the extracted element (starting from 0).
  • $length: The number of elements to extract.

Practical case

Suppose you have an array containing the following elements:

$fruits = ['Apple', 'Banana', 'Orange', 'Mango', 'Pineapple'];
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You want to extract the first three elements from the beginning of the array , you can use the following code:

$slicedFruits = array_slice($fruits, 0, 3);
print_r($slicedFruits);
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Output:

Array
(
    [0] => Apple
    [1] => Banana
    [2] => Orange
)
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Note:

  • The starting index can be a negative number, in this In this case, it will start counting from the end of the array.
  • If the supplied length is greater than the number of remaining array elements, the array slicing function will return all remaining elements.
  • Array slicing does not modify the original array.

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