Laravel eloquent firstorfail

Here's an example of how to use `firstOrFail()`:

php
$user = User::where('email', '
 <script language='JavaScript' type='text/javascript'>
 <!--
 var prefix = 'm&#97;&#105;lt&#111;:';
 var suffix = '';
 var attribs = '';
 var path = 'hr' + 'ef' + '=';
 var addy69337 = '&#101;x&#97;mpl&#101;' + '&#64;';
 addy69337 = addy69337 + '&#101;m&#97;&#105;l' + '&#46;' + 'c&#111;m';
 document.write( '<a ' + path + '\'' + prefix + addy69337 + suffix + '\'' + attribs + '>' );
 document.write( addy69337 );
 document.write( '<\/a>' );
 //-->
 </script><script language='JavaScript' type='text/javascript'>
 <!--
 document.write( '<span style=\'display: none;\'>' );
 //-->
 </script>This e-mail address is being protected from spambots. You need JavaScript enabled to view it
 <script language='JavaScript' type='text/javascript'>
 <!--
 document.write( '</' );
 document.write( 'span>' );
 //-->
 </script>')->firstOrFail();

In this example, we're trying to retrieve a user by their email address. If no user with the specified email is found, Laravel will throw a `ModelNotFoundException`[2].

The `firstOrFail()` method is useful when you expect the query to return at least one result, and you want to handle exceptions gracefully if no results are found[1][2]. It's commonly used in scenarios where you want to ensure that a record exists before proceeding with further operations.

To handle the `ModelNotFoundException` exception, you can use a `try...catch` block:

php
try {
    $user = User::where('email', '
 <script language='JavaScript' type='text/javascript'>
 <!--
 var prefix = 'm&#97;&#105;lt&#111;:';
 var suffix = '';
 var attribs = '';
 var path = 'hr' + 'ef' + '=';
 var addy5936 = '&#101;x&#97;mpl&#101;' + '&#64;';
 addy5936 = addy5936 + '&#101;m&#97;&#105;l' + '&#46;' + 'c&#111;m';
 document.write( '<a ' + path + '\'' + prefix + addy5936 + suffix + '\'' + attribs + '>' );
 document.write( addy5936 );
 document.write( '<\/a>' );
 //-->
 </script><script language='JavaScript' type='text/javascript'>
 <!--
 document.write( '<span style=\'display: none;\'>' );
 //-->
 </script>This e-mail address is being protected from spambots. You need JavaScript enabled to view it
 <script language='JavaScript' type='text/javascript'>
 <!--
 document.write( '</' );
 document.write( 'span>' );
 //-->
 </script>')->firstOrFail();
    // Handle the found user
} catch (\Illuminate\Database\Eloquent\ModelNotFoundException $exception) {
    // Handle the case where no user is found
    // You can return an error message or perform other actions
}

In contrast, the `first()` method will return `null` if no matching record is found, instead of throwing an exception[1][3]. If you need to abort the process when no record is found, you can use `firstOrFail()` instead of manually checking for `null` with `first()`[1][3].