PHP Fatal error: Cannot break/continue

问题

if (isset($errors))  
{  
foreach ($errors as $error)  
  {  
    echo $error;  
  }    
}  
else {break 2;}  
// some more code

Outputs:

Fatal error: Cannot break/continue 2 levels  

I tried break 1, it didn't work either.

回答1:

if (isset($errors))  
{  
foreach ($errors as $error)  
  {  
    echo $error;  
  }    
}  

No need to use break as you seem to want to end on the else condition. just use the above code for your errors, it will be skipped if no errors. No need for break

回答2:

Break ends the execution within a foreach, for, while, do-while or switch structure..

if (isset($errors))  
{  
foreach ($errors as $error)  
  {  
    echo $error;  
  }    
}  
else {break 2;} //there is no loop here!  

回答3:

Just type break not followed with any number. But break is helpless outside of a loop / block.

来源：https://stackoverflow.com/questions/3618030/php-fatal-error-cannot-break-continue