Wednesday, 18 December 2013

PHP Get a part of an array

Extract a slice of the array
Get a part of an array


<?php
$input 
= array("a""b""c""d""e");
$output array_slice($input2);      // returns "c", "d", and "e"$output array_slice($input, -21);  // returns "d"$output array_slice($input03);   // returns "a", "b", and "c"

// note the differences in the array keys
print_r(array_slice($input2, -1));print_r(array_slice($input2, -1true));?>

array_slice — Extract a slice of the array

Description ¶

array array_slice ( array $array , int $offset [, int $length = NULL [, bool $preserve_keys= false ]] )
array_slice() returns the sequence of elements from the array array as specified by the offset and lengthparameters.

Parameters ¶

array
The input array.
offset
If offset is non-negative, the sequence will start at that offset in the array. If offset is negative, the sequence will start that far from the end of the array.
length
If length is given and is positive, then the sequence will have up to that many elements in it. If the array is shorter than the length, then only the available array elements will be present. If length is given and is negative then the sequence will stop that many elements from the end of the array. If it is omitted, then the sequence will have everything from offset up until the end of the array.
preserve_keys
Note that array_slice() will reorder and reset the numeric array indices by default. You can change this behaviour by setting preserve_keys to TRUE.

Return Values ¶

Returns the slice.

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