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PHP Ds / Map __construct () function

Syntax:
public DsMap::__ construct ($values)
Parameter:this function takes one parameter $values,which contains a float or array to use for initial values.The following programs illustrate the Ds / Map::__ construct()function in PHP:Program 1:
// PHP illustration program __construct()
// Ds / map function 
// Declare a new map $map = new DsMap();  
// Show map elements print_r ( $map );  
// Create a map $map = new DsMap ([ "1" = > "Geeks" , "2" = > "for" , "3" = > "Geeks"]);  
// Show map elements print_r ( $map );  
?>
Exit:
DsMap Object ( ) DsMap Object ([0] = > DsPair Object ([key] = > 1 [value] = > Geeks) [1] = > DsPair Object ([key] = > 2 [value] = > for) [2] = > DsPair Object ([key] = > 3 [value] = > Geeks))
Program 2:
// PHP illustration program __construct()
// Ds / map function 
// Create a map $map = new DsMap ([ "1" = > "10" , " 2 " = > "20" , "3" = > thirty]);  
// Show key-value pair print_r ( $map );  
// Create another map $map = new DsMap ([1 = > "Welcome" , 2 = > "to" , 3 = > "GeeksforGeeks" ]);  
// Show key-value pair print_r ( $map );  
?>
Exit:
DsMap Object ( [0] = > DsPair Object ([key] = > 1 [value] = > 10) [1] = > DsPair Object ([key] = > 2 [value] = > 20) [2 ] = > DsPair Object ([key] = > 3 [value] = > 30)) DsMap Object ([0] = > DsPair Object ([key] = > 1 [value] = > Welcome) [1] = > DsPair Object ([key] = > 2 [value] = > to) [2] = > DsPair Object ([key] = > 3 [value] = > GeeksforGeeks)) 
Link: https://www.php.net /manual/en/ds-map.construct.php

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