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Monday, 5 January 2015

Difference between Notice and warning and fatal error

Difference between Notice and warning and fatal error


Notice
  • A notice is an advisory message like "You probably shouldn't be doing what you're doing"
  • Execution of the script is not halted
  • Example
    echo $undefinedVariable;



Warning
  • A warning is a message like "You are doing something wrong and it is very likely to cause errors in the future, so please fix it." Execution of the script is not halted;
  • Example
    echo 1/0;



Fatal Error
  • Fatal run-time errors
  • Execution of the script is not halted
  • Example  
    require_once "notexistfile.php"

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