diff --git a/ext/posix/posix.c b/ext/posix/posix.c
index bfdb0fa4bbc4a..feecfaa119f7d 100644
--- a/ext/posix/posix.c
+++ b/ext/posix/posix.c
@@ -1196,3 +1196,28 @@ PHP_FUNCTION(posix_sysconf)
 
 	RETURN_LONG(sysconf(conf_id));
 }
+
+PHP_FUNCTION(posix_pathconf)
+{
+	zend_long name, ret;
+	char *path;
+	size_t path_len;
+
+	ZEND_PARSE_PARAMETERS_START(2, 2)
+		Z_PARAM_STRING(path, path_len)
+		Z_PARAM_LONG(name);
+	ZEND_PARSE_PARAMETERS_END();
+
+	if (path_len == 0) {
+		RETURN_FALSE;
+	}
+
+	ret = pathconf(path, name);
+
+	if (ret < 0 && errno != 0) {
+		POSIX_G(last_error) = errno;
+		RETURN_FALSE;
+	}
+
+	RETURN_LONG(ret);
+}
diff --git a/ext/posix/posix.stub.php b/ext/posix/posix.stub.php
index cc73901444fbb..94caf3cc261eb 100644
--- a/ext/posix/posix.stub.php
+++ b/ext/posix/posix.stub.php
@@ -219,6 +219,76 @@
  */
 const POSIX_SC_NPROCESSORS_ONLN = UNKNOWN;
 #endif
+#ifdef _PC_LINK_MAX
+/**
+ * @var int
+ * @cvalue _PC_LINK_MAX
+ */
+const POSIX_PC_LINK_MAX = UNKNOWN;
+#endif
+#ifdef _PC_MAX_CANON
+/**
+ * @var int
+ * @cvalue _PC_MAX_CANON
+ */
+const POSIX_PC_MAX_CANON = UNKNOWN;
+#endif
+#ifdef _PC_MAX_INPUT
+/**
+ * @var int
+ * @cvalue _PC_MAX_INPUT
+ */
+const POSIX_PC_MAX_INPUT = UNKNOWN;
+#endif
+#ifdef _PC_NAME_MAX
+/**
+ * @var int
+ * @cvalue _PC_NAME_MAX
+ */
+const POSIX_PC_NAME_MAX = UNKNOWN;
+#endif
+#ifdef _PC_PATH_MAX
+/**
+ * @var int
+ * @cvalue _PC_PATH_MAX
+ */
+const POSIX_PC_PATH_MAX = UNKNOWN;
+#endif
+#ifdef _PC_PIPE_BUF
+/**
+ * @var int
+ * @cvalue _PC_PIPE_BUF
+ */
+const POSIX_PC_PIPE_BUF = UNKNOWN;
+#endif
+#ifdef _PC_CHOWN_RESTRICTED
+/**
+ * @var int
+ * @cvalue _PC_CHOWN_RESTRICTED
+ */
+const POSIX_PC_CHOWN_RESTRICTED = UNKNOWN;
+#endif
+#ifdef _PC_NO_TRUNC
+/**
+ * @var int
+ * @cvalue _PC_NO_TRUNC
+ */
+const POSIX_PC_NO_TRUNC = UNKNOWN;
+#endif
+#ifdef _PC_ALLOC_SIZE_MIN
+/**
+ * @var int
+ * @cvalue _PC_ALLOC_SIZE_MIN
+ */
+const POSIX_PC_ALLOC_SIZE_MIN = UNKNOWN;
+#endif
+#ifdef _PC_SYMLINK_MAX
+/**
+ * @var int
+ * @cvalue _PC_SYMLINK_MAX
+ */
+const POSIX_PC_SYMLINK_MAX = UNKNOWN;
+#endif
 
 function posix_kill(int $process_id, int $signal): bool {}
 
@@ -357,3 +427,5 @@ function posix_initgroups(string $username, int $group_id): bool {}
 #endif
 
 function posix_sysconf(int $conf_id): int {}
+
+function posix_pathconf(string $path, int $name): int|false {}
diff --git a/ext/posix/posix_arginfo.h b/ext/posix/posix_arginfo.h
index bc7f4791ef086..6bbf4ca25dce9 100644
--- a/ext/posix/posix_arginfo.h
+++ b/ext/posix/posix_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: a6ba91179f2a7ca3622aed0c28e8431868076567 */
+ * Stub hash: 68daa5f0b270b307501a785ca6a197ea161a2ded */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_posix_kill, 0, 2, _IS_BOOL, 0)
 	ZEND_ARG_TYPE_INFO(0, process_id, IS_LONG, 0)
@@ -164,6 +164,11 @@ ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_posix_sysconf, 0, 1, IS_LONG, 0)
 	ZEND_ARG_TYPE_INFO(0, conf_id, IS_LONG, 0)
 ZEND_END_ARG_INFO()
 
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX(arginfo_posix_pathconf, 0, 2, MAY_BE_LONG|MAY_BE_FALSE)
+	ZEND_ARG_TYPE_INFO(0, path, IS_STRING, 0)
+	ZEND_ARG_TYPE_INFO(0, name, IS_LONG, 0)
+ZEND_END_ARG_INFO()
+
 
 ZEND_FUNCTION(posix_kill);
 ZEND_FUNCTION(posix_getpid);
@@ -228,6 +233,7 @@ ZEND_FUNCTION(posix_strerror);
 ZEND_FUNCTION(posix_initgroups);
 #endif
 ZEND_FUNCTION(posix_sysconf);
+ZEND_FUNCTION(posix_pathconf);
 
 
 static const zend_function_entry ext_functions[] = {
@@ -295,6 +301,7 @@ static const zend_function_entry ext_functions[] = {
 	ZEND_FE(posix_initgroups, arginfo_posix_initgroups)
 #endif
 	ZEND_FE(posix_sysconf, arginfo_posix_sysconf)
+	ZEND_FE(posix_pathconf, arginfo_posix_pathconf)
 	ZEND_FE_END
 };
 
@@ -388,4 +395,34 @@ static void register_posix_symbols(int module_number)
 #if defined(_SC_NPROCESSORS_ONLN)
 	REGISTER_LONG_CONSTANT("POSIX_SC_NPROCESSORS_ONLN", _SC_NPROCESSORS_ONLN, CONST_PERSISTENT);
 #endif
+#if defined(_PC_LINK_MAX)
+	REGISTER_LONG_CONSTANT("POSIX_PC_LINK_MAX", _PC_LINK_MAX, CONST_PERSISTENT);
+#endif
+#if defined(_PC_MAX_CANON)
+	REGISTER_LONG_CONSTANT("POSIX_PC_MAX_CANON", _PC_MAX_CANON, CONST_PERSISTENT);
+#endif
+#if defined(_PC_MAX_INPUT)
+	REGISTER_LONG_CONSTANT("POSIX_PC_MAX_INPUT", _PC_MAX_INPUT, CONST_PERSISTENT);
+#endif
+#if defined(_PC_NAME_MAX)
+	REGISTER_LONG_CONSTANT("POSIX_PC_NAME_MAX", _PC_NAME_MAX, CONST_PERSISTENT);
+#endif
+#if defined(_PC_PATH_MAX)
+	REGISTER_LONG_CONSTANT("POSIX_PC_PATH_MAX", _PC_PATH_MAX, CONST_PERSISTENT);
+#endif
+#if defined(_PC_PIPE_BUF)
+	REGISTER_LONG_CONSTANT("POSIX_PC_PIPE_BUF", _PC_PIPE_BUF, CONST_PERSISTENT);
+#endif
+#if defined(_PC_CHOWN_RESTRICTED)
+	REGISTER_LONG_CONSTANT("POSIX_PC_CHOWN_RESTRICTED", _PC_CHOWN_RESTRICTED, CONST_PERSISTENT);
+#endif
+#if defined(_PC_NO_TRUNC)
+	REGISTER_LONG_CONSTANT("POSIX_PC_NO_TRUNC", _PC_NO_TRUNC, CONST_PERSISTENT);
+#endif
+#if defined(_PC_ALLOC_SIZE_MIN)
+	REGISTER_LONG_CONSTANT("POSIX_PC_ALLOC_SIZE_MIN", _PC_ALLOC_SIZE_MIN, CONST_PERSISTENT);
+#endif
+#if defined(_PC_SYMLINK_MAX)
+	REGISTER_LONG_CONSTANT("POSIX_PC_SYMLINK_MAX", _PC_SYMLINK_MAX, CONST_PERSISTENT);
+#endif
 }
diff --git a/ext/posix/tests/posix_pathconf.phpt b/ext/posix/tests/posix_pathconf.phpt
new file mode 100644
index 0000000000000..7214e32c186ed
--- /dev/null
+++ b/ext/posix/tests/posix_pathconf.phpt
@@ -0,0 +1,16 @@
+--TEST--
+Test posix_pathconf
+--EXTENSIONS--
+posix
+--FILE--
+<?php
+var_dump(posix_pathconf('', POSIX_PC_PATH_MAX));
+var_dump(posix_pathconf(str_repeat('non_existent', 4096), POSIX_PC_NAME_MAX));
+var_dump(posix_errno() != 0);
+var_dump(posix_pathconf(sys_get_temp_dir(), POSIX_PC_PATH_MAX));
+?>
+--EXPECTF--
+bool(false)
+bool(false)
+bool(true)
+int(%d)