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PHP array_slice() function usage and example

The PHP array_slice() function extracts a segment from the array

Syntax

array_slice($array, $offset [,$length [,$preserve_keys]]);

　Definition and usage

array_slice() returns a segment of the array array specified by the offset and length parameters.

Parameter	Serial number
1	Parameter and description array (required)
2	It specifies an array. offset (required)
3	If offset is non-negative, the sequence will start from this offset in the array. If offset is negative, the sequence will start from a distance from the end of the array. length (optional)
4	If length is given and is positive, the sequence will have this many units. If length is given and negative, the sequence will terminate at a distance from the end of the array. If omitted, the sequence will start from offset to the end of the array. preserve_keys (optional)

Note that array_slice() by default will re-sort and reset the numeric indices of the array. You can change this behavior by setting preserve_keys to TRUE.

Return value

It returns the sequence of elements. If the offset parameter is greater than the array size, an empty array will be returned.

Online example

Return a segment of array elements from the array

Example
　　　<?php
　　　
　　　print_r(array_slice($input, "", ));　2,　-1$input = array("a", "b", "c", "d", "e");
　　　print_r(array_slice($input, "", ));　2,　-1, true));
?>

Test and see‹/›

Output result:

Array
(
　　　　[0] => c
　　　　[1=> d
)
Array
(
　　　　[2=> c
　　　　[3=> d
)

PHP Array Function Manual

Funções Ctype PHP Funções de Array PHP