diff options
Diffstat (limited to 'documentation/magic-methods-and-interfaces.html')
| -rw-r--r-- | documentation/magic-methods-and-interfaces.html | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/documentation/magic-methods-and-interfaces.html b/documentation/magic-methods-and-interfaces.html index 93c76a6..6ece6a5 100644 --- a/documentation/magic-methods-and-interfaces.html +++ b/documentation/magic-methods-and-interfaces.html @@ -159,11 +159,11 @@ echo(count($counter)."\n"); <p> A PHP object can be turned into a variable that behaves like an array by implementing the Php::ArrayAccess interface. When you do this, objects - can be accessed by with the array access operator ($object["property"]). + can be accessed with array access operators ($object["property"]). </p> <p> In the following example we use the Php::Countable and the Php::ArrayAccess - interfaces to create a class that acts like an associative array than can + interfaces to create an associative array class than can be used for storing strings (remember: this is just an example, PHP already has support for associative arrays, so it is debatable how useful the example is). @@ -278,10 +278,12 @@ extern "C" { to be forwarded to a regular C++ std::map object. </p> <p> - The Map object from the example does not have any regular methods at all. - It only implements the Php::Countable interface and Php::ArrayAccess interface, - so it is perfectly usable to store and retrieve properties, but it does not - have any methods. The following script shows how to use it. + Inside the get_module() function, the Map is registered and added to the + extension. But unlike many other examples, none of the class methods are + exported to PHP. It only implements the Php::Countable interface and + Php::ArrayAccess interface, so it is perfectly usable to store and retrieve + properties, but from a PHP script it does not have any callable methods. + The following script shows how to use it. </p> <p> <pre class="language-php"><code> @@ -292,7 +294,7 @@ $map = new Map(); // store some values $map["a"] = 1234; $map["b"] = "xyz"; -$map["c"] = new stdClass(); +$map["c"] = 0; // show the values echo($map["a"]."\n"); @@ -301,6 +303,11 @@ echo($map["c"]."\n"); // access a value that does not exist echo($map["d"]."\n"); + ?> </pre></code> </p> +<p> + The output speaks for itself. The map has three members, "1234" (a string + variable), "xyz" and "0". +</p> |