Fun with Plugins

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- 24,524 Posts
sottwell Reply #1, 13 years ago
I'm having two major problems with plugins. Revo 2.2.10, OnParseDocument.

1. According to the modparser.class.php file, line 226:
```
$this->modx->invokeEvent('OnParseDocument', array('content' => &$content));
```
How do I access this 'content' to manipulate the content at this point?

2. Any time I try to return a value with the onParseDocument event in order to get a log message I get a delay then a white-page with a PHP out-of-memory error, so I presume it's going into some kind of loop. Is this a bug, or has something changed in the event processing code? All other events appear to work as expected.
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- 24,544 Posts
BobRay Reply #2, 13 years ago
Since $content is a reference variable, if you just modify the $content variable in your plugin, the content should change -- no need to return anything.

I generally don't return anything in plugins where the return value of invokeEvent() is ignored. IOW, unless the call looks like this, the return variable isn't going to do anything:
```
$someVariable = $this->modx->invokeEvent('OnParseDocument', array('content' => &$content));
```
I've also seen some funkiness with static plugins, in case you're trying that (though I haven't tried any for a while).
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