php error exception 区别应用

A session had already been started - ignoring session_start()

标签： php

出现以下错误的解决办法： PHP Notice: A session had already been started – ignoring session_start() in .. on line .. ...之所以出现这种情况是页面中多次使用了 session_start()函数 ...

php中警告提示A session had already been started – ignoring session_start() 解决方法

登录代码用到了session_start()方法，但是直接这样是不正确的！php会爆出警告提示： Notice: A session had already been started - ignoring ... 错误提示：A session had already been started - ignoring s...

json_encode由于角色而崩溃

标签： character-encoding json php

Exception 'PHPErrorException' with message 'Warning [2] json_encode(): Invalid UTF-8 sequence in argument when I call <code>json_encode</code>. If the character is not present, the ...

我可以告诉ReflectionClass构造函数区分大小写吗？

标签： php reflection

Fatal error: Uncaught exception 'PHPErrorException' with message 'Exception 'ReflectionException' with message 'Method Check does not exist' I have checked the source of the problem and it ...