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<?php class SendGrid { public static function send() { echo "Using SG send method"; } } class ZendGrid { public static function send() { echo "Using ZG send method"; } } class Emailer { public function setSendMethod($method) { $this->send = $method; } } $emailer = new Emailer(); $emailer->setSendMethod(ZendGrid::send); $emailer->send;
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Undefined constant ZendGrid::send in /in/BZ7J9:23 Stack trace: #0 {main} thrown in /in/BZ7J9 on line 23
Process exited with code 255.

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