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<?php define ("FOO", 34); $str="bla bla {$constant('FOO')} bar"; echo $str;
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $constant in /in/7Q01b on line 4 Fatal error: Uncaught Error: Value of type null is not callable in /in/7Q01b:4 Stack trace: #0 {main} thrown in /in/7Q01b on line 4
Process exited with code 255.

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