// SYNTAX ERROR:
//  when there is mistake or a typo with the way you write your code
//  for example. below is an example of a syntax error or maybe you miss
//  a semi-colon.
if( $a == 2 {
    echo cool";
}

// RUNTIME ERROR:
//  this happens when your script breaks right before execution

// LOGICAL ERROR:
//  happens when the logic to code execution is wrong, for example you want
//  your script to add 2 numbers but instead it subtracts 2 numbers, this is
//  usually the hardest to detect

// COMPILE ERRROR:
//  happens when there is a problem interpreting the code

// FATAL ERROR:
//  happens when your code breaks or terminates script execution

// USER GENERATED:
//  happens when you personally trigger an error using trigger_error function

// PARSE ERROR:
//  i forgot to mention this one but it is the same type of error as syntax error

// whenever anyone of these errors occur PHP usually displays some kind of message like
// E_ERROR and more, a list of below is a list

// E_ERROR: A fatal error that causes script termination
// E_WARNING: Run-time warning that does not cause script termination
// E_PARSE: Compile time parse error.
// E_NOTICE: Run time notice caused due to error in code
// E_CORE_ERROR: Fatal errors that occur during PHP’s initial startup (installation)
// E_CORE_WARNING: Warnings that occur during PHP’s initial startup
// E_COMPILE_ERROR: Fatal compile-time errors indication problem with script.
// E_USER_ERROR: User-generated error message.
// E_USER_WARNING: User-generated warning message.
// E_USER_NOTICE: User-generated notice message.
// E_STRICT: Run-time notices.
// E_RECOVERABLE_ERROR: Catchable fatal error indicating a dangerous error
// E_ALL: Catches all errors and warnings