How Can I Access Arrays Returned from Functions in PHP, Especially in Private Scope?

Accessing Function-Returned Arrays in PHP

When utilizing a PHP template engine to inject code into your site, it's common to encounter scenarios where you need to access an array returned by a function. However, this can be particularly challenging when the array resides within a private scope.

Consider the following example:

myfunction() { return ($this->data['a']['b'] ? true : false); }

In this instance, the private nature of the $this->data property prevents direct access to retrieve the array. Using the getData() method to obtain the property value falls short, resulting in an error.

To overcome this obstacle, PHP 5.4 introduced the capability to access the array directly:

getSomeArray()[2]

This syntax retrieves the third element of the array returned by the getSomeArray() function.

Prior to PHP 5.4, employing a temporary variable was necessary:

$data = getSomeArray();
echo $data[2];

By leveraging this technique, you can access function-returned arrays seamlessly, regardless of their scope, enabling you to enhance your template engine usage and site functionality.

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