Types of Error in PHP

What is an Error in PHP?

An error is a type of mistake, in another words we can say that error is a condition of having incorrect false knowledge or it is defined as an unexpected.

and Mistake is an error caused by a fault.

Types of error

1. Parse Error or Syntax Error
2. Fatal Error
3. Warning Error
4. Notice Error

1. Parse Errors (syntax errors) :                                                              It will occur when there is a syntax mistake in the script.

     Following are the reason of syntax errors:

• Unclosed quotes
• Missing or Extra parentheses
• Unclosed braces 
• Missing semicolon

Example

<?php

echo "Correct syntax";

echo "synatx Error"

echo "Synatx Error":

?>

 2  Fatal Errors

It will occur when PHP couldn’t understand what you've written. It stop the execution of the script.

       Example

<?php

function fun1(){

echo "Hello PHP";

}

fun2();

echo "Fatal Error !!";

?>

     3. Warning Errors

 It will occur when the file is missing or incorrect number of parameter . It   doesn’t stop the execution of script.

<?php echo "Warning Error!!";
include ("index.php");
?>

 4. Notice Errors

  It will occur when you have not declare variable. It is same as warning error i.e.

          <?php
           $a="Hello PHP";
           echo "Notice Error !!";
           echo $b;
           ?>