public function test_str_after()
 {
     $string = Str::after('*****@*****.**', '@');
     $this->assertEquals('example.org', $string);
     $string = Str::after('user@example@.org', '@');
     $this->assertEquals('example@.org', $string);
     $string = Str::after('userexample.org', '@');
     $this->assertEquals('userexample.org', $string);
     $string = Str::after('', '@');
     $this->assertEquals('', $string);
 }
 /**
  * Get the part of haystack after needle.
  *
  * @param string $haystack
  * @param string $needle
  * @return string
  */
 function str_after($haystack, $needle)
 {
     return Str::after($haystack, $needle);
 }