The major types of Errors in PHP

Notices, Warnings, Parse and Fatal type errors in PHP.


Notices:
Notices represents non-critical errors, i.e. accessing a variable that has not yet been defined. By default, such errors are not displayed to the user at all but whenever required, you can change this default behavior.

Warnings:
Warnings are more serious errors but they do not result in script termination. i.e calling include() a file which does not exist. By default, these errors are displayed to the user.




Parse errors:
Parse errors are syntax errors, if you miss the semicolon or braces like ; {. It will raises an errors and it will displays the line number where the error is exactly.  Parse errors stop the execution of php script.

Fatal errors:
Fatal errors are critical errors i.e. calling a non-existent function or class. These errors cause the immediate termination of the script.


To see errors change values in php.ini file

• error_reporting = E_ALL
• display_errors = 1

 To display error messages over the webpage

<?php
   error_reporting(E_ALL);
   ini_set("display_errors", 1);
   include("./broken-script.php");

?>