diff --git a/ext/pcre/php_pcre.c b/ext/pcre/php_pcre.c
index 6c265df48507f..6002eedc782e8 100644
--- a/ext/pcre/php_pcre.c
+++ b/ext/pcre/php_pcre.c
@@ -20,6 +20,7 @@
 #include "php_ini.h"
 #include "php_globals.h"
 #include "php_pcre.h"
+#include "php_pcre_arginfo.h"
 #include "ext/standard/info.h"
 #include "ext/standard/basic_functions.h"
 #include "zend_smart_str.h"
@@ -2910,70 +2911,6 @@ static PHP_FUNCTION(preg_last_error)
 
 /* {{{ module definition structures */
 
-/* {{{ arginfo */
-ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_match, 0, 0, 2)
-    ZEND_ARG_INFO(0, pattern)
-    ZEND_ARG_INFO(0, subject)
-    ZEND_ARG_INFO(1, subpatterns) /* array */
-    ZEND_ARG_INFO(0, flags)
-    ZEND_ARG_INFO(0, offset)
-ZEND_END_ARG_INFO()
-
-ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_match_all, 0, 0, 2)
-    ZEND_ARG_INFO(0, pattern)
-    ZEND_ARG_INFO(0, subject)
-    ZEND_ARG_INFO(1, subpatterns) /* array */
-    ZEND_ARG_INFO(0, flags)
-    ZEND_ARG_INFO(0, offset)
-ZEND_END_ARG_INFO()
-
-ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_replace, 0, 0, 3)
-    ZEND_ARG_INFO(0, regex)
-    ZEND_ARG_INFO(0, replace)
-    ZEND_ARG_INFO(0, subject)
-    ZEND_ARG_INFO(0, limit)
-    ZEND_ARG_INFO(1, count)
-ZEND_END_ARG_INFO()
-
-ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_replace_callback, 0, 0, 3)
-    ZEND_ARG_INFO(0, regex)
-    ZEND_ARG_INFO(0, callback)
-    ZEND_ARG_INFO(0, subject)
-    ZEND_ARG_INFO(0, limit)
-    ZEND_ARG_INFO(1, count)
-    ZEND_ARG_INFO(0, flags)
-ZEND_END_ARG_INFO()
-
-ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_replace_callback_array, 0, 0, 2)
-    ZEND_ARG_INFO(0, pattern)
-    ZEND_ARG_INFO(0, subject)
-    ZEND_ARG_INFO(0, limit)
-    ZEND_ARG_INFO(1, count)
-    ZEND_ARG_INFO(0, flags)
-ZEND_END_ARG_INFO()
-
-ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_split, 0, 0, 2)
-    ZEND_ARG_INFO(0, pattern)
-    ZEND_ARG_INFO(0, subject)
-    ZEND_ARG_INFO(0, limit)
-    ZEND_ARG_INFO(0, flags)
-ZEND_END_ARG_INFO()
-
-ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_quote, 0, 0, 1)
-    ZEND_ARG_INFO(0, str)
-    ZEND_ARG_INFO(0, delim_char)
-ZEND_END_ARG_INFO()
-
-ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_grep, 0, 0, 2)
-    ZEND_ARG_INFO(0, regex)
-    ZEND_ARG_INFO(0, input) /* array */
-    ZEND_ARG_INFO(0, flags)
-ZEND_END_ARG_INFO()
-
-ZEND_BEGIN_ARG_INFO(arginfo_preg_last_error, 0)
-ZEND_END_ARG_INFO()
-/* }}} */
-
 static const zend_function_entry pcre_functions[] = {
 	PHP_FE(preg_match,					arginfo_preg_match)
 	PHP_FE(preg_match_all,				arginfo_preg_match_all)
diff --git a/ext/pcre/php_pcre.stub.php b/ext/pcre/php_pcre.stub.php
new file mode 100644
index 0000000000000..f4730f1b6074b
--- /dev/null
+++ b/ext/pcre/php_pcre.stub.php
@@ -0,0 +1,52 @@
+<?php
+
+/** @return int|false */
+function preg_match(string $pattern, string $subject, &$subpatterns = null, int $flags = 0, int $offset = 0) {}
+
+/** @return int|false */
+function preg_match_all(string $pattern, string $subject, &$subpatterns = null, int $flags = 0, int $offset = 0) {}
+
+/**
+ * @param string|array $regex
+ * @param string|array $replace
+ * @param string|array $subject
+ * @return string|array|null|false
+ */
+function preg_replace($regex, $replace, $subject, int $limit = -1, &$count = null) {}
+
+/**
+ * @param string|array $regex
+ * @param string|array $replace
+ * @param string|array $subject
+ * @return string|array|null|false
+ */
+function preg_filter($regex, $replace, $subject, int $limit = -1, &$count = null) {}
+
+/**
+ * @param string|array $regex
+ * @param string|array $subject
+ * @return string|array|null
+ *
+ * TODO: $callback should be `callable`
+ */
+function preg_replace_callback($regex, $callback, $subject, int $limit = -1, &$count = null, int $flags = 0) {}
+
+/**
+ * @param string|array $subject
+ * @return string|array|null
+ */
+function preg_replace_callback_array(array $pattern, $subject, int $limit = -1, &$count = null, int $flags = 0) {}
+
+/**
+ * @return array|false
+ */
+function preg_split(string $pattern, string $subject, int $limit = -1, int $flags = 0) {}
+
+
+function preg_quote(string $str, ?string $delim_char = null): string {}
+
+/** @return array|false */
+function preg_grep(string $regex, array $input, int $flags = 0) {}
+
+
+function preg_last_error(): int {}
diff --git a/ext/pcre/php_pcre_arginfo.h b/ext/pcre/php_pcre_arginfo.h
new file mode 100644
index 0000000000000..aff71e652a56f
--- /dev/null
+++ b/ext/pcre/php_pcre_arginfo.h
@@ -0,0 +1,59 @@
+/* This is a generated file, edit the .stub.php file instead. */
+
+ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_match, 0, 0, 2)
+	ZEND_ARG_TYPE_INFO(0, pattern, IS_STRING, 0)
+	ZEND_ARG_TYPE_INFO(0, subject, IS_STRING, 0)
+	ZEND_ARG_INFO(1, subpatterns)
+	ZEND_ARG_TYPE_INFO(0, flags, IS_LONG, 0)
+	ZEND_ARG_TYPE_INFO(0, offset, IS_LONG, 0)
+ZEND_END_ARG_INFO()
+
+#define arginfo_preg_match_all arginfo_preg_match
+
+ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_replace, 0, 0, 3)
+	ZEND_ARG_INFO(0, regex)
+	ZEND_ARG_INFO(0, replace)
+	ZEND_ARG_INFO(0, subject)
+	ZEND_ARG_TYPE_INFO(0, limit, IS_LONG, 0)
+	ZEND_ARG_INFO(1, count)
+ZEND_END_ARG_INFO()
+
+#define arginfo_preg_filter arginfo_preg_replace
+
+ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_replace_callback, 0, 0, 3)
+	ZEND_ARG_INFO(0, regex)
+	ZEND_ARG_INFO(0, callback)
+	ZEND_ARG_INFO(0, subject)
+	ZEND_ARG_TYPE_INFO(0, limit, IS_LONG, 0)
+	ZEND_ARG_INFO(1, count)
+	ZEND_ARG_TYPE_INFO(0, flags, IS_LONG, 0)
+ZEND_END_ARG_INFO()
+
+ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_replace_callback_array, 0, 0, 2)
+	ZEND_ARG_TYPE_INFO(0, pattern, IS_ARRAY, 0)
+	ZEND_ARG_INFO(0, subject)
+	ZEND_ARG_TYPE_INFO(0, limit, IS_LONG, 0)
+	ZEND_ARG_INFO(1, count)
+	ZEND_ARG_TYPE_INFO(0, flags, IS_LONG, 0)
+ZEND_END_ARG_INFO()
+
+ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_split, 0, 0, 2)
+	ZEND_ARG_TYPE_INFO(0, pattern, IS_STRING, 0)
+	ZEND_ARG_TYPE_INFO(0, subject, IS_STRING, 0)
+	ZEND_ARG_TYPE_INFO(0, limit, IS_LONG, 0)
+	ZEND_ARG_TYPE_INFO(0, flags, IS_LONG, 0)
+ZEND_END_ARG_INFO()
+
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_preg_quote, 0, 1, IS_STRING, 0)
+	ZEND_ARG_TYPE_INFO(0, str, IS_STRING, 0)
+	ZEND_ARG_TYPE_INFO(0, delim_char, IS_STRING, 1)
+ZEND_END_ARG_INFO()
+
+ZEND_BEGIN_ARG_INFO_EX(arginfo_preg_grep, 0, 0, 2)
+	ZEND_ARG_TYPE_INFO(0, regex, IS_STRING, 0)
+	ZEND_ARG_TYPE_INFO(0, input, IS_ARRAY, 0)
+	ZEND_ARG_TYPE_INFO(0, flags, IS_LONG, 0)
+ZEND_END_ARG_INFO()
+
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_preg_last_error, 0, 0, IS_LONG, 0)
+ZEND_END_ARG_INFO()