diff --git a/src/Translator.php b/src/Translator.php
index d3426cc3..177cd755 100644
--- a/src/Translator.php
+++ b/src/Translator.php
@@ -898,11 +898,11 @@ CODE;
             }
             $fullName = $functionDef->getNamespacedName();
             $zifName = $this->escapeZendFnName($fullName);
-            if ($functionDef->namespace) {
-                $code .= $this->getIndent() . 'ZEND_NAMED_FE("' . $this->escapeString($fullName) . '", ZEND_FN(' . $zifName . '), arginfo_' . $zifName . ')' . PHP_EOL;
-            } else {
-                $code .= $this->getIndent() . 'ZEND_FE(' . $zifName . ', arginfo_' . $zifName . ')' . PHP_EOL;
-            }
+            // TypePHP is always strict. Store the flag in the registered
+            // zend_function instead of rewriting shared metadata on every call.
+            $code .= $this->getIndent() . 'ZEND_RAW_FENTRY("' . $this->escapeString($fullName)
+                . '", ZEND_FN(' . $zifName . '), arginfo_' . $zifName
+                . ', ZEND_ACC_STRICT_TYPES, NULL, NULL)' . PHP_EOL;
         }
         $code .= $this->getIndent() . "ZEND_FE_END\n};\n// clang-format on" . PHP_EOL . PHP_EOL;
 
@@ -3246,6 +3246,7 @@ CODE;
         if ($functionDef->argCountRequired > 0) {
             $cppCode .= $this->genWrapperRequiredArgCountCheck($functionDef, $displayName);
         }
+
         foreach ($functionDef->argInfoList as $k => $argInfo) {
             $var = 'arg_' . $argInfo->name;
             if ($argInfo->variadic) {
@@ -4981,4 +4982,5 @@ CODE;
 
         return $code;
     }
+
 }
diff --git a/src/gen_stub.php b/src/gen_stub.php
index 779d39c8..51d9a8b2 100755
--- a/src/gen_stub.php
+++ b/src/gen_stub.php
@@ -1688,7 +1688,9 @@ class FuncInfo {
 
     private function getArginfoFlagsByPhpVersions(): VersionFlags
     {
-        $flags = [];
+        // TypePHP is always strict. Register functions and methods with the
+        // flag once so dynamic calls made by native bodies inherit that mode.
+        $flags = ["ZEND_ACC_STRICT_TYPES"];
 
         if ($this->isMethod()) {
             if ($this->flags & Modifiers::PROTECTED) {
diff --git a/tests/compiler/declare/strict_types-default.phpt b/tests/compiler/declare/strict_types-default.phpt
new file mode 100644
index 00000000..a14b9410
--- /dev/null
+++ b/tests/compiler/declare/strict_types-default.phpt
@@ -0,0 +1,38 @@
+--TEST--
+TypePHP enables strict types without a declare directive
+--FILE--
+<?php
+function checkStrictCaller(string $label): void
+{
+    $callable = 'strlen';
+    try {
+        $callable(123);
+        echo $label, "=accepted\n";
+    } catch (TypeError $error) {
+        echo $label, "=TypeError\n";
+    }
+}
+
+class StrictMethodCaller
+{
+    public function check(): void
+    {
+        checkStrictCaller('method');
+    }
+}
+
+function main(): void
+{
+    checkStrictCaller('main');
+
+    $function = 'checkStrictCaller';
+    $function('function');
+
+    $method = [new StrictMethodCaller(), 'check'];
+    $method();
+}
+?>
+--EXPECT--
+main=TypeError
+function=TypeError
+method=TypeError
diff --git a/tests/compiler/declare/strict_types.phpt b/tests/compiler/declare/strict_types.phpt
new file mode 100644
index 00000000..120d14cc
--- /dev/null
+++ b/tests/compiler/declare/strict_types.phpt
@@ -0,0 +1,17 @@
+--TEST--
+declare: strict types 1
+--FILE--
+<?php
+declare(strict_types=1);
+function main() {
+    $callable = 'strlen';
+    try {
+        $callable(123);
+        echo "accepted\n";
+    } catch (TypeError $error) {
+        echo "TypeError\n";
+    }
+}
+?>
+--EXPECT--
+TypeError