==运算符在PHP中是可传递的吗?
问题描述:
在JavaScript中, ==
运算符不一定是可传递的:
In JavaScript, the ==
operator isn't necessarily transitive:
js> '0' == 0
true
js> 0 == ''
true
js> '0' == ''
false
在PHP中是否一样?您能举个例子吗?
Is the same true in PHP? Can you give an example?
答
否, ==
运算符不能传递。
完全相同的方案在PHP中给出相同的结果。
The exact same scenario gives the same result in PHP.
echo var_dump('0'==0);
echo var_dump(0=='');
echo var_dump('0'=='');
收益率:
boolean true
boolean true
boolean false