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<?php $f = function(){ static $run = 0; if ($run) { throw new Exception("I've already been run!"); } $run = 1; echo "I'm running\n"; }; $f(); $f();
Output for git.master, git.master_jit, rfc.property-hooks
I'm running Fatal error: Uncaught Exception: I've already been run! in /in/3sl9T:6 Stack trace: #0 /in/3sl9T(14): {closure}() #1 {main} thrown in /in/3sl9T on line 6
Process exited with code 255.

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