How Can I Access PHP Object Properties with Invalid Names?

Accessing Properties with Invalid Names

PHP objects typically allow property access via dot notation, but the property name cannot contain special characters like hyphens. However, there are ways to access these "illegal" property names.

Using Curly Braces

One method is to use curly braces around the property name:

$object->{'todo-items'};

This will return the todo-items sub-object.

Using Dynamic Variable Names

Another option is to use a dynamic variable name to store the property name:

$propertyName = 'todo-items';
echo $object->{$propertyName};

Converting to Array

If you prefer to work with arrays, you can convert the object to an array using a helper function like this:

$array = toArray($object);
echo $array['todo-items'];

Zend_Config Conversion

Alternatively, if you're using Zend_Config, its toArray() method can recursively convert nested objects to an array for easy access:

$array = $object->toArray();
echo $array['todo-items'];

By utilizing these techniques, you can successfully access properties with illegal names and retrieve the desired data from the returned object.

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