diff --git a/ext/zip/php_zip.c b/ext/zip/php_zip.c
index d5f7b019eb9ea..ffb235ff8ae72 100644
--- a/ext/zip/php_zip.c
+++ b/ext/zip/php_zip.c
@@ -1483,6 +1483,47 @@ PHP_METHOD(ZipArchive, open)
 }
 /* }}} */
 
+/* {{{ Create new read-only zip using given buffer */
+PHP_METHOD(ZipArchive, openBuffer)
+{
+	struct zip *intern;
+	zend_string *buffer;
+	zval *self = ZEND_THIS;
+	ze_zip_object *ze_obj;
+
+	if (zend_parse_parameters(ZEND_NUM_ARGS(), "S", &buffer) == FAILURE) {
+		RETURN_THROWS();
+	}
+
+	zip_error_t err;
+	zip_error_init(&err);
+
+	zip_source_t * zip_source = zip_source_buffer_create(ZSTR_VAL(buffer), ZSTR_LEN(buffer), 0, &err);
+
+	if (!zip_source) {
+		zend_throw_error(NULL, "Cannot open zip: %s", zip_error_strerror(&err));
+		zip_error_fini(&err);
+		RETURN_THROWS();
+	}
+
+	ze_obj = Z_ZIP_P(self);
+
+	intern = zip_open_from_source(zip_source, ZIP_RDONLY, &err);
+	if (!intern) {
+		zip_source_free(zip_source);
+		zend_throw_error(NULL, "Cannot open zip: %s", zip_error_strerror(&err));
+		zip_error_fini(&err);
+		RETURN_THROWS();
+	}
+
+	zip_source_keep(zip_source);
+	zip_error_fini(&err);
+
+	ze_obj->za = intern;
+	ze_obj->source = zip_source;
+}
+/* }}} */
+
 /* {{{ Set the password for the active archive */
 PHP_METHOD(ZipArchive, setPassword)
 {
@@ -1548,12 +1589,22 @@ PHP_METHOD(ZipArchive, close)
 		ze_obj->err_sys = 0;
 	}
 
-	/* clear cache as empty zip are not created but deleted */
-	php_clear_stat_cache(1, ze_obj->filename, ze_obj->filename_len);
+	// if we have a filename, we need to free it
+	if (ze_obj->filename) {
+		/* clear cache as empty zip are not created but deleted */
+		php_clear_stat_cache(1, ze_obj->filename, ze_obj->filename_len);	
+
+		efree(ze_obj->filename);
+		ze_obj->filename = NULL;
+		ze_obj->filename_len = 0;
+	}
+
+	if (ze_obj->source) {
+		zip_source_close(ze_obj->source);
+		zip_source_free(ze_obj->source);
+		ze_obj->source = NULL;
+	}
 
-	efree(ze_obj->filename);
-	ze_obj->filename = NULL;
-	ze_obj->filename_len = 0;
 	ze_obj->za = NULL;
 
 	if (!err) {
diff --git a/ext/zip/php_zip.h b/ext/zip/php_zip.h
index 01d6c3d10133e..903dc1336d445 100644
--- a/ext/zip/php_zip.h
+++ b/ext/zip/php_zip.h
@@ -68,6 +68,7 @@ typedef struct _ze_zip_read_rsrc {
 /* Extends zend object */
 typedef struct _ze_zip_object {
 	struct zip *za;
+	zip_source_t *source;
 	char **buffers;
 	HashTable *prop_handler;
 	char *filename;
diff --git a/ext/zip/php_zip.stub.php b/ext/zip/php_zip.stub.php
index 3473d27bf2050..b5fbb9e4fc0bc 100644
--- a/ext/zip/php_zip.stub.php
+++ b/ext/zip/php_zip.stub.php
@@ -648,6 +648,8 @@ class ZipArchive implements Countable
     /** @tentative-return-type */
     public function open(string $filename, int $flags = 0): bool|int {}
 
+    public function openBuffer(string $data): void {}
+
     /**
      * @tentative-return-type
      */
diff --git a/ext/zip/php_zip_arginfo.h b/ext/zip/php_zip_arginfo.h
index 2a24750142c95..240c11ad40a19 100644
--- a/ext/zip/php_zip_arginfo.h
+++ b/ext/zip/php_zip_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: 53e04d9b2c25cc8a0c9fe51914b5a47280834fb8 */
+ * Stub hash: 06851d8732afa5357e6721776226fc641d2f8b34 */
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_zip_open, 0, 0, 1)
 	ZEND_ARG_TYPE_INFO(0, filename, IS_STRING, 0)
@@ -45,6 +45,10 @@ ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_MASK_EX(arginfo_class_ZipArchive_open,
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, flags, IS_LONG, 0, "0")
 ZEND_END_ARG_INFO()
 
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_class_ZipArchive_openBuffer, 0, 1, IS_VOID, 0)
+	ZEND_ARG_TYPE_INFO(0, data, IS_STRING, 0)
+ZEND_END_ARG_INFO()
+
 ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_INFO_EX(arginfo_class_ZipArchive_setPassword, 0, 1, _IS_BOOL, 0)
 	ZEND_ARG_TYPE_INFO(0, password, IS_STRING, 0)
 ZEND_END_ARG_INFO()
@@ -315,6 +319,7 @@ ZEND_FUNCTION(zip_entry_compressedsize);
 ZEND_FUNCTION(zip_entry_filesize);
 ZEND_FUNCTION(zip_entry_compressionmethod);
 ZEND_METHOD(ZipArchive, open);
+ZEND_METHOD(ZipArchive, openBuffer);
 ZEND_METHOD(ZipArchive, setPassword);
 ZEND_METHOD(ZipArchive, close);
 ZEND_METHOD(ZipArchive, count);
@@ -395,6 +400,7 @@ static const zend_function_entry ext_functions[] = {
 
 static const zend_function_entry class_ZipArchive_methods[] = {
 	ZEND_ME(ZipArchive, open, arginfo_class_ZipArchive_open, ZEND_ACC_PUBLIC)
+	ZEND_ME(ZipArchive, openBuffer, arginfo_class_ZipArchive_openBuffer, ZEND_ACC_PUBLIC)
 	ZEND_ME(ZipArchive, setPassword, arginfo_class_ZipArchive_setPassword, ZEND_ACC_PUBLIC)
 	ZEND_ME(ZipArchive, close, arginfo_class_ZipArchive_close, ZEND_ACC_PUBLIC)
 	ZEND_ME(ZipArchive, count, arginfo_class_ZipArchive_count, ZEND_ACC_PUBLIC)
diff --git a/ext/zip/tests/ziparchive_openbuffer.phpt b/ext/zip/tests/ziparchive_openbuffer.phpt
new file mode 100644
index 0000000000000..87b471d3bc5f2
--- /dev/null
+++ b/ext/zip/tests/ziparchive_openbuffer.phpt
@@ -0,0 +1,28 @@
+--TEST--
+ZipArchive::openBuffer() method
+--EXTENSIONS--
+zip
+--FILE--
+<?php
+$zip = new ZipArchive();
+$zip->openBuffer(file_get_contents(__DIR__."/test_procedural.zip"));
+
+for ($i = 0; $i < $zip->numFiles; $i++) {
+    $stat = $zip->statIndex($i);
+    echo $stat['name'] . "\n";
+}
+
+// Zip is read-only, not allowed
+var_dump($zip->addFromString("foobar/baz", "baz"));
+var_dump($zip->addEmptyDir("blub"));
+
+var_dump($zip->close());
+?>
+--EXPECTF--
+foo
+bar
+foobar/
+foobar/baz
+bool(false)
+bool(false)
+bool(true)