It is must to display code errors while coding. It is the best weapon for programmer to find out why and where the errors happened? We face errors often while developing a web application. Then it become more irretating to solve this problem. Sometime it took much time to find out the errors. It become hard time for a Web Application developer.
Here are some tips to find out the code errors
In Raw PHP
<?php $variable = "data. Is there any data or Not"; echo "<pre>" // to display error batter to understand use <pre> tag. Print_r($variable); // Here show wheather there have any data error or not. exit(); // use exit function for script end after display data error. ?>
In PHP you can also use die function to display data error.
<?php die("set data errors variable here") ?>
We can also use var_dump function to display code errors
<?php $c = true and false; var_dump($c); ?>
In laravel Framework there has own debug mode that is easier to display code errors.
Use it in php blade file :
@php $variable = "data. Is there any data or Not"; dd($variable ); @endphp
OR in php files:
<?php $variable = "data. Is there any data or Not"; dd($variable ); ?>
<!DOCTYPE html> <html> <body> <script> var = "data. Check is there any data or Not" ; console.log(var ); </script> </body> </html>
We can also display code errors by window alert function in js files.
<script> var = "data. Check is there any data or Not" ; alert(var ); </script>
If you have any query comment bellow.