Online PHP editor | refs for GHGNf

<?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');