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PHP Ds / Deque set () function

Syntax:
public DsDeque::set ($index, $value): void
Parameters:this function takes two parameters as above and described below:
  • index:this parameter contains the index value at which the element should be installed .
  • value:this parameter contains the value that will be set for this index.
Returned value:this function does not return any value.The following programs illustrate the Ds / Deque::set()function in PHP:Program 1:  
// Declare deque $deck = new DsDeque ([ "engineer" , "for" , "engineer" , "practice" ]); echo ( " Elements of Deque " );  
// Show Deque elements print_r ( $deck );  
// Update deque element at index 2 $deck -> set (2, "engineerforengineer" ); echo ( " Deque after setting value at index 2 " );  
// Show Deque elements print_r ( $deck );  
?>
Exit:
Elements of Deque DsDeque Object ([0] = > engineer [1] = > for [2] = > engineer [3] = > practice) Deque after setting value at index 2 DsDeque Object ([0] = > engineer [ 1] = > for [2] = > engineerforengineer [3] = > practice)
Program 2:  
// Declare deque $deck = new DsDeque ([1, 2, 3, 4, 5, 6]); echo ( " Elements of Deque " );  
// Show Deque elements print_r ( $deck );  
// Update deque element at index 2 $deck -> set (4, 10); echo ( " Deque after setting value at index 2 " );  
// Show Deque elements print_r ( $deck );  
?>
Exit:
Elements of Deque DsDeque Object ([0] = > 1 [1] = > 2 [2] = > 3 [3] = > 4 [4] = > 5 [5] = > 6) Deque after setting value at index 2 DsDeque Object ([0] = > 1 [1] = > 2 [2] = > 3 [3] = > 4 [4] = > 10 [5] = > 6)
Link: http://php.net/manual/en /ds-deque.set.php

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