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<?php function hello world($greeting=null){ $w = 'World'; echo "$greeting,$w!<br>\n"; } hello world('Howdy'); // Howdy, World! $command = "hello world"; $command('Hi'); // Hi, World! $content = "hello world"; echo $$content("Greetings"); // , World!
Output for git.master, git.master_jit, rfc.property-hooks
Howdy,World!<br> Hi,World!<br> Warning: Undefined variable $hello world in /in/liRRQ on line 11 Fatal error: Uncaught Error: Value of type null is not callable in /in/liRRQ:11 Stack trace: #0 {main} thrown in /in/liRRQ on line 11
Process exited with code 255.

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