Can PHP achieve congruence in switch?

<code>        switch($value){
            case null: echo 'null';
                break;
            case '': echo '空';
                break;
        }
            
</code>

The problem now is that when $value = '', switch will enter the first case.
Can we achieve congruent judgment and let the switch enter the second case?

Reply content:

<code>        switch($value){
            case null: echo 'null';
                break;
            case '': echo '空';
                break;
        }
            
</code>

The problem now is that when $value = '', switch will enter the first case.
Can we achieve congruent judgment and let the switch enter the second case?

You can change your mind and look at the code

<code>switch(true) {
    case null === $value : echo 'null';
        break;
    case '' === $value: echo '空';
        break;
}</code>

No, switch does a loose comparison.

What you said above is correct. Change your thinking