undefined variable
英 [ˌʌndɪˈfaɪnd ˈveəriəbl]
美 [ˌʌndɪˈfaɪnd ˈveriəbl]
网络 未定义变量; 变量未定义; 未定义的变量
双语例句
- In the snippet above, it looks as though the script is using an undefined variable named "alertConfigService," but this is not the case.
在上面的代码片段中，好像脚本使用了未定义的变量“alertConfigService”，但事实并非如此。 - Instead of checking for a default compound value, you can also catch the access to an undefined variable. E.g.
不用再检查默认的复合值，您也可以捕获对未定义变量的访问。 - If you further set xdebug.dump_undefined to On and a named superglobal variable isn't set, the variable is still printed with the value undefined.
如果进一步将xdebug.dumpundefined设为On并且不设定指定的超全局变量，则仍用值undefined打印变量。 - They hold only one piece of data: a string, a number, the undefined value, a reference to another variable.
它只保存一段数据：一个字符串、一个数字、未定义的值以及对另一个变量的引用。