$a= true and false 为何返回真？

Question

$a= true and false;

 echo $a; //返回1

 

Answer 1

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

Answer 2

后面没有其他代码？我觉得肯定有些其他问题吧，true and false的and前后肯定都要判断的，看这语法，这就是世界上最好的语言吧