C + +-How does PHP pass an object to an indexed array?

For example, I have an array

$arr = array();

How to make a string correspond to one (object/object reference)

Similar to Std::map in C + +

For example, to implement code similar to the following, what to do in PHP?

class Obj {    int var;}Obj my_obj = new Obj();std::string str = "str";std::map
  
   
    
    s_o;s_0.emplace( {str,my_obj} );        
  
   

Thank you

Reply content:

For example, I have an array

$arr = array();

How to make a string correspond to one (object/object reference)

Similar to Std::map in C + +

For example, to implement code similar to the following, what to do in PHP?

class Obj {    int var;}Obj my_obj = new Obj();std::string str = "str";std::map
  
   
    
    s_o;s_0.emplace( {str,my_obj} );        
  
   

Thank you

array('str' => new Obj())

PHP is a weak type, and what data can be passed to an array

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