Solution:Step 1: Understand return false in custom error handlerReturning false tells PHP to execute the default error handler after the custom one.Step 2: Analyze output from both handlersThe custom handler prints "Error [512]: Test error" and then PHP prints the default warning message.Final Answe

[Solved] Consider this code:function errorHandler($errno, $errstr) { echo "Error [$errno]: $errstr"; return false;... trigger_error('Test error', E_USER_WARNING);What will be the output? | PHP

PHP - Error and Exception Handling

Consider this code:

function errorHandler($errno, $errstr) {
  echo "Error [$errno]: $errstr";
  return false;
}
set_error_handler('errorHandler');
trigger_error('Test error', E_USER_WARNING);

What will be the output?

AError [512]: Test error

BWarning: Test error

CError [512]: Test errorWarning: Test error

DNo output

Step-by-Step Solution

Solution:

Step 1: Understand return false in custom error handler
Returning false tells PHP to execute the default error handler after the custom one.
Step 2: Analyze output from both handlers
The custom handler prints "Error [512]: Test error" and then PHP prints the default warning message.
Final Answer:
Error [512]: Test errorWarning: Test error -> Option C
Quick Check:
Return false = custom + default error output [OK]

Quick Trick: Return false to run default error handler after custom [OK]

Common Mistakes:

Assuming only custom handler output appears
Expecting no output when returning false
Confusing error number with error type

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Consider this code:

Step 1: Understand return false in custom error handler

Step 2: Analyze output from both handlers

Final Answer:

Quick Check:

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