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This Laravel controller method has an error:

medium📝 Debug Q14 of 15
Laravel - Controllers
This Laravel controller method has an error:
public function index() { echo 'Welcome'; }

What is the problem with this code?
AUsing echo instead of return causes no response
BMethod must be private, not public
CMissing semicolon after echo statement
DController methods cannot output text
Step-by-Step Solution
Solution:
  1. Step 1: Identify how Laravel expects responses

    Laravel expects controller methods to return responses, not echo output directly.
  2. Step 2: Understand echo vs return in Laravel

    Echo sends output immediately but Laravel won't capture it as a proper HTTP response.
  3. Final Answer:

    Using echo instead of return causes no response -> Option A
  4. Quick Check:

    Use return, not echo, in controller methods [OK]
Quick Trick: Always return response, never echo in controllers [OK]
Common Mistakes:
  • Thinking echo works like return
  • Believing method visibility is wrong
  • Ignoring Laravel response rules

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