字符串类型转化为布尔值_布尔值转换为字符串
js字符串转化为布尔值What happens when a false value is casted to a string? 将false值强制转换为字符串会怎样? I.e. what is the result of the following:< ?phpvar_dump((string)false);?> 即以下结果是什么:<?php var_dump((...