7. API Reference 7.4. Opt_Output_Return class: 7.3.5. setHeader()
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7.4. Opt_Output_Return class

Construct	Class
Implements	`Opt_Output_Interface`
Versions	since `2.0-dev7`

With this output system, the OPT output is returned by the render() method back to the script, so it can be processed in some other way.

$out = new Opt_Output_Return();
$outputData = $out->render($view);

This output system is less restrictive than Opt_Output_Http when it comes to the XML template limitations. Basically, here you can execute the render() method several times, for different views.

7.4. Opt_Output_Return class 7. API Reference: « Previous
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7.5. Opt_Compiler_Class class