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<?php function add(double $a, double $b) { return $a + $b; } echo add((double)1, (double)2); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Warning: "double" will be interpreted as a class name. Did you mean "float"? Write "\double" to suppress this warning in /in/1W0ib on line 2 Warning: "double" will be interpreted as a class name. Did you mean "float"? Write "\double" to suppress this warning in /in/1W0ib on line 2 Fatal error: Uncaught TypeError: add(): Argument #1 ($a) must be of type double, float given, called in /in/1W0ib on line 6 and defined in /in/1W0ib:2 Stack trace: #0 /in/1W0ib(6): add(1.0, 2.0) #1 {main} thrown in /in/1W0ib on line 2
Process exited with code 255.

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