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run code in 200+ php & hhvm versions
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<?php function strict() { $backtrace = debug_backtrace(0, 2); if (false === $backtrace || count($backtrace) !== 2) { throw new \RuntimeException('strict() must be called from within a function'); } $expectedTypes = func_get_args(); $receivedTypes = array_map('gettype', $backtrace[1]['args']); if (count($expectedTypes) !== count($receivedTypes)) { throw new \InvalidArgumentException('Got ' . count($receivedTypes) . ' arguments, expected ' . count($expectedTypes)); } for ($i = 0; $i < count($expectedTypes); $i++) { if ($expectedTypes[$i] !== $receivedTypes[$i]) { throw new \InvalidArgumentException('Expected argument ' . ($i + 1) . ' to be of type ' . $expectedTypes[$i] . ', received ' . $receivedTypes[$i]); } } } function myargs($a, $b) { strict('string', 'integer'); echo 'Hello'.PHP_EOL; } myargs('hello', 4); myargs(4, 'oof');
based on VeZLk
Output for 7.0.0 - 7.2.0
Hello Fatal error: Uncaught InvalidArgumentException: Expected argument 1 to be of type string, received integer in /in/GHGNf:20 Stack trace: #0 /in/GHGNf(27): strict('string', 'integer') #1 /in/GHGNf(33): myargs(4, 'oof') #2 {main} thrown in /in/GHGNf on line 20
Process exited with code 255.
Output for 5.4.2 - 5.6.28
Hello Fatal error: Uncaught exception 'InvalidArgumentException' with message 'Expected argument 1 to be of type string, received integer' in /in/GHGNf:20 Stack trace: #0 /in/GHGNf(27): strict('string', 'integer') #1 /in/GHGNf(33): myargs(4, 'oof') #2 {main} thrown in /in/GHGNf on line 20
Process exited with code 255.
Output for 5.3.18 - 5.3.29
Warning: debug_backtrace() expects at most 1 parameter, 2 given in /in/GHGNf on line 5 Fatal error: Uncaught exception 'RuntimeException' with message 'strict() must be called from within a function' in /in/GHGNf:8 Stack trace: #0 /in/GHGNf(27): strict('string', 'integer') #1 /in/GHGNf(32): myargs('hello', 4) #2 {main} thrown in /in/GHGNf on line 8
Process exited with code 255.