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

Patricia Arquette
Patricia ArquetteOriginal
2024-12-09 11:36:16407browse

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;
}

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];
}

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

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.

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