original_string: public function isPrefix($propertyPath)
      {
          $length = \strlen($propertyPath);
          $prefix = substr($this->propertyPath, 0, $length);
          $next = isset($this->propertyPath[$length]) ? $this->propertyPath[$length] : null;
  
          return $prefix === $propertyPath && ('[' === $next || '.' === $next);
      }
code: public function isPrefix($propertyPath)
      {
          $length = \strlen($propertyPath);
          $prefix = substr($this->propertyPath, 0, $length);
          $next = isset($this->propertyPath[$length]) ? $this->propertyPath[$length] : null;
  
          return $prefix === $propertyPath && ('[' === $next || '.' === $next);
      }
code_tokens: public function isPrefix ( $ propertyPath ) { $ length = \ strlen ( $ propertyPath ) ; $ prefix = substr ( $ this -> propertyPath , 0 , $ length ) ; $ next = isset ( $ this -> propertyPath [ $ length ] ) ? $ this -> propertyPath [ $ length ] : null ; return $ prefix === $ propertyPath && ( '[' === $ next || '.' === $ next ) ; }
docstring: Matches a property path against a prefix of the rule path.
  
  @param string $propertyPath The property path to match against the rule
  
  @return bool Whether the property path is a prefix of the rule or not
docstring_tokens: Matches a property path against a prefix of the rule path .