1--TEST-- 2Scalar type missing parameters 3--FILE-- 4<?php 5 6$errnames = [ 7 E_NOTICE => 'E_NOTICE', 8 E_WARNING => 'E_WARNING', 9 E_RECOVERABLE_ERROR => 'E_RECOVERABLE_ERROR' 10]; 11set_error_handler(function (int $errno, string $errmsg, string $file, int $line) use ($errnames) { 12 echo "$errnames[$errno]: $errmsg on line $line\n"; 13 return true; 14}); 15 16$functions = [ 17 'int' => function (int $i) { return $i; }, 18 'float' => function (float $f) { return $f; }, 19 'string' => function (string $s) { return $s; }, 20 'bool' => function (bool $b) { return $b; }, 21 'int nullable' => function (int $i = NULL) { return $i; }, 22 'float nullable' => function (float $f = NULL) { return $f; }, 23 'string nullable' => function (string $s = NULL) { return $s; }, 24 'bool nullable' => function (bool $b = NULL) { return $b; } 25]; 26 27foreach ($functions as $type => $function) { 28 echo "Testing $type:", PHP_EOL; 29 try { 30 var_dump($function()); 31 } catch (Throwable $e) { 32 echo "*** Caught " . $e->getMessage() . PHP_EOL; 33 } 34} 35echo PHP_EOL . "Done"; 36--EXPECTF-- 37Testing int: 38*** Caught Too few arguments to function {closure}(), 0 passed in %s on line %d and exactly 1 expected 39Testing float: 40*** Caught Too few arguments to function {closure}(), 0 passed in %s on line %d and exactly 1 expected 41Testing string: 42*** Caught Too few arguments to function {closure}(), 0 passed in %s on line %d and exactly 1 expected 43Testing bool: 44*** Caught Too few arguments to function {closure}(), 0 passed in %s on line %d and exactly 1 expected 45Testing int nullable: 46NULL 47Testing float nullable: 48NULL 49Testing string nullable: 50NULL 51Testing bool nullable: 52NULL 53 54Done 55