Today I made 2 Yongji PHPTRUE = 2-php tutorial

Today, I am a member of Yongji PHPTRUE2. Today, my colleague reported that he had voted for the voting function. after carefully checking the code, I did not find any problem ?? After the last row is checked, the problem is found to be a bool integer? & Lt ;? Php $ str; var_dump (empty ($ str )?); Exit ;? $ Str1; var_du today commits 2 mistakes when Yongji php true = 2

Today, my colleague always reported a prompt that he had voted for the voting function. after carefully checking the code, I did not find any problem?

?

Check the last row to find that it isBool = integerThis problem

?

$ Str = "";

Var_dump (empty ($ str )? );

Exit;

?

$ Str = "1 ";
Var_dump ($ str [0]);
$ Str = implode ('|', $ str );
// Var_dump ($ str );


Exit;

$ A = 1 = 1;
$ B = 2 = $;

Var_dump ($ B );
Br ("\ $ B =". $ B );

Var_dump (TRUE = 2 );


Exit;