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How to intercept the first few elements of an array in php

王林
Release: 2023-03-03 22:00:02
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How to intercept the first few elements of an array in php: You can use the array_splice() function to achieve this. The array_splice() function removes selected elements from an array and returns an array of removed elements. The specific usage method is: [array_slice($arr,0,4);].

How to intercept the first few elements of an array in php

array_splice() function removes the selected element from an array and can replace it with a new element. The function will also return an array of removed elements.

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Syntax:

array_splice(array,start,length,array)
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Parameters:

  • array Required. Specifies an array.​

  • #start Required. numerical value. Specifies the starting position of deleted elements.

  • length Optional. numerical value. Specifies the number of elements to be removed, which is also the length of the returned array.

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Example:

Get the first 4 digits of the array

array_slice($arr,0,4);
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Get the last 4 digits of the array

array_slice($arr,-4,4);
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or

array_slice($arr,-4);
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