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run code in 200+ php & hhvm versions
Bugs & Features
<?php set_error_handler( function( HH\int $errno, HH\string $errstr ) { printf("ERROR (%d): %s\n ==> ", $errno, $errstr); // ON ERROR RESUME NEXT; return true; } ); class string { } class int { } class float { } class bool { } function test_hh_string(HH\string $foo) { var_dump($foo); } function test_hh_int(HH\int $foo) { var_dump($foo); } function test_hh_float(HH\float $foo) { var_dump($foo); } function test_hh_bool(HH\bool $foo) { var_dump($foo); } function test_string(string $foo) { var_dump($foo); } function test_int(int $foo) { var_dump($foo); } function test_float(float $foo) { var_dump($foo); } function test_bool(bool $foo) { var_dump($foo); } print("--- CORRECT USAGE ---\n"); test_hh_string('123'); test_hh_int(123); test_hh_float(1.23); test_hh_bool(true); test_string(new string()); test_int(new int()); test_float(new float()); test_bool(new bool()); print("--- INCORRECT USAGE ---\n"); test_hh_string(new string()); test_hh_int(new int()); test_hh_float(new float()); test_hh_bool(new bool()); test_string('123'); test_int(123); test_float(1.23); test_bool(true);
Output for 5.3.0 - 5.6.2
--- CORRECT USAGE --- Catchable fatal error: Argument 1 passed to {closure}() must be an instance of HH\int, integer given in /in/iWH0N on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/iWH0N on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/iWH0N on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/iWH0N on line 4
Process exited with code 255.