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PHP Ds / Pair __construct () function

Syntax:
public DsPair::__ construct ($key, $value)
Parameters:this function takes two parameters as above and described below:
  • $key:this parameter contains the key of the pair’s element.
  • $value:this parameter contains the value of the element of the pair.
Return value:This function does not return any value.The following programs illustrate the Ds / Pair::__ construct() function in PHP:Program 1:
// PHP illustration program
// Ds / Pair::__ construct() function 
// Declare a new pair  $pair = new DsPair();  
// Display a pair of elements print_r ( $pair );  
// Create another pair $pair = new Dspair ( [ "1" , "2" , " 3 " ], [ " Geeks " , " for " , "Geeks" ] );  
// Display a pair of elements print_r ( $pair );  
?>
Exit:
DsPair Object ( [key] = > [value] = >) DsPair Object ([key] = > Array ([0] = > 1 [1] = > 2 [2] = > 3) [value] = > Array ([0] = > Geeks [1] = > for [2] = > Geeks))
Program 2:
// PHP illustration program
// Ds / Pair::__ construct() function 
// Create a pair $pair = new Dspair ( [ "a" , "b" , "c" ], [ "10" , "2" , "30" ] );  
// Display a pair of elements var_dump ( $pair );  
?>
Exit:
object (DsPair ) # 1 (2) {["key"] = > array (3) {[0] = > string (1) "a" [1] = > string (1) "b" [2] = > string (1) "c"} ["value"] = > array (3) {[0] = > string (2) "10" [1] = > string (1) "2" [2] = > string (2) "30"}}
Link: https://www.php.net/manual/en/ds-pair.construct.php

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