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<?php class demo{ public static $demo = "static.demo"; public static function mydemo(){ echo "static.mydemo"; } } $a = new demo(); echo $a::$demo;//版本的问题吧php 5.2.17报错 echo demo::demo;
Output for git.master, git.master_jit, rfc.property-hooks
static.demo Fatal error: Uncaught Error: Undefined constant demo::demo in /in/U3SkQ:11 Stack trace: #0 {main} thrown in /in/U3SkQ on line 11
Process exited with code 255.

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