[TYPO3-dev] ext_emconf.php - content of $EM_CONF[$_EXTKEY][constraints]? it's not in the TYPO3 Core APIs

[Johannes Konert]

I found something in other extensions like:
	'constraints' => array(
		'depends' => array(
			'typo3' => '4.0-4.1.0',
			'php' => '4.3-4.9.9',			
		),
to set the TYPO3 and PHP versions, but is there a dokumentation 
somewhere which keywords (typo3,php..) are used for what?

Regards,
Johannes