PHP报错：Strict Standards: Only variables should be passed by reference in ...

????? 在测试中,遇到PHP日志中报类似下面的错误信息:

????? Strict Standards: Only variables should be passed by reference in ...

????? 在Google上找到下面的web:

????? “Strict Standards: Only variables should be passed by reference” error

????? 其中,回答者shiplu.mokadd.im对解决方式给出了简洁的解释,其中提到:

The following things can be passed by reference:

- Variables, i.e. foo($a)
- New statements, i.e. foo(new foobar())
- [References returned from functions][2]

????? 更多的内容,参考http://www.php.net/manual/en/language.references.pass.php