Home > Backend Development > PHP Tutorial > How Can I Access Protected Properties in Older PHP Versions (Pre-5.5)?

How Can I Access Protected Properties in Older PHP Versions (Pre-5.5)?

Patricia Arquette
Release: 2024-12-09 11:36:16
Original
468 people have browsed it

How Can I Access Protected Properties in Older PHP Versions (Pre-5.5)?

Accessing Protected Property in PHP Without Reflection

Obtaining protected properties of an object can be challenging when direct access is restricted. Consider the following example:

class Fields_Form_Element_Location {
    protected $_value = 93399;
}
Copy after login

Accessing $_value directly, such as $obj->_value or $obj->value, will result in errors.

Alternative Solution for PHP versions below 5.5

Since PHP Reflection is not available in PHP versions below 5.5, an alternative approach is to utilize the get_class_vars() function:

function accessProtected($obj, $prop) {
  $vars = get_class_vars(get_class($obj));
  return $vars[$prop];
}
Copy after login

By utilizing this function, you can retrieve the protected property's value without modifying its accessibility settings.

Usage Example

$obj = new Fields_Form_Element_Location;
$value = accessProtected($obj, '_value');
echo $value; // Output: 93399
Copy after login

This method allows you to retrieve protected properties in PHP versions that do not support Reflection. However, it is important to note that it may not be applicable in all cases, especially if the protected property is assigned dynamically.

The above is the detailed content of How Can I Access Protected Properties in Older PHP Versions (Pre-5.5)?. For more information, please follow other related articles on the PHP Chinese website!

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template