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PHP Ds / Deque slice () function

Syntax:
public DsDeque::slice ($index, $length): DsDeque
Parameters:This function takes two parameters as above and described below:
  • index:This parameter contains the starting index of the sub Deque. The index value can be positive or negative. If the index value is positive, it starts with the Deque index, and if the index value is negative, Deque starts at the end.
  • Length:This parameter has a south length of Deque. This parameter can take positive and negative values. If the length is positive, then the size of the nested deck is equal to the specified length, and if the length is negative, then Deque will stop so many values ​​at the ends.
Return value:This function returns a nested a deck with sliced ​​elements from a specified range.The following programs illustrate the Ds / Deque::slice()function in PHP:Program 1 :  
// Declare deque $deck = new DsDeque ([1, 2, 3, 4, 5, 6]); echo ( " Elements of Deque " );  
// Show Deque elements print_r ( $deck );  
// Splitting branches from 2 to 5 $deck_new = $deck -> slice (2, 5); echo ( " Deque after slicing: " );  
// Show Deque elements print_r ( $deck_new );  
?>
Exit:
Elements of Deque DsDeque Object ([0] = > 1 [1] = > 2 [2] = > 3 [3] = > 4 [4] = > 5 [5] = > 6) Deque after slicing: DsDeque Object ([0] = > 3 [1] = > 4 [2] = > 5 [3] = > 6)
Program 2:  
// Declare deque $deck = new DsDeque ([1, 2, 3, 4, 5, 6]); echo ( " Elements of Deque " );  
// Show Deque elements print_r ( $deck );  
// slicing decks from 3 to -2 $deck_new = $deck -> slice (3, -2); echo ( " Deque after slicing: " );  
// Show Deque elements print_r ( $deck_new );  
?>
Exit:
Elements of Deque DsDeque Object ([0] = > 1 [1] = > 2 [2] = > 3 [3] = > 4 [4] = > 5 [5] = > 6) Deque after slicing: DsDeque Object ([0] = > 4)
Link: http://php.net/manual/en/ds-deque.slice.php

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