diff --git a/packages/php-wasm/compile/php/phpwasm-emscripten-library-file-locking-for-node.js b/packages/php-wasm/compile/php/phpwasm-emscripten-library-file-locking-for-node.js
index ba8640c3bd..ecbcba7103 100644
--- a/packages/php-wasm/compile/php/phpwasm-emscripten-library-file-locking-for-node.js
+++ b/packages/php-wasm/compile/php/phpwasm-emscripten-library-file-locking-for-node.js
@@ -40,13 +40,21 @@ const LibraryForFileLocking = {
 			}
 
 			// Handle PROXYFS nodes which wrap other nodes.
-			if (!node?.mount?.opts?.fs?.lookupPath) {
+			if (!node?.mount?.opts?.fs?.lookupPath || !node?.mount?.type?.realPath) {
 				return false;
 			}
 
-			const vfsPath = NODEFS.realPath(node);
-			const underlyingNode = node.mount.opts.fs.lookupPath(vfsPath)?.node;
-			return !!underlyingNode?.isSharedFS;
+			// Only NODEFS can be shared between workers at the moment.
+			if (node.mount.type !== NODEFS) {
+				return false;
+			}
+			const vfsPath = node.mount.type.realPath(node);
+			try {
+				const underlyingNode = node.mount.opts.fs.lookupPath(vfsPath)?.node;
+				return !!underlyingNode?.isSharedFS;
+			} catch (e) {
+				return false;
+			}
 		},
 		is_path_to_shared_fs(path) {
 			const { node } = FS.lookupPath(path);
diff --git a/packages/php-wasm/node/jspi/php_7_2.js b/packages/php-wasm/node/jspi/php_7_2.js
index c72732cef6..a932037328 100644
--- a/packages/php-wasm/node/jspi/php_7_2.js
+++ b/packages/php-wasm/node/jspi/php_7_2.js
@@ -5659,13 +5659,27 @@ export function init(RuntimeName, PHPLoader) {
 			if (node?.isSharedFS) {
 				return true;
 			}
+
 			// Handle PROXYFS nodes which wrap other nodes.
-			if (!node?.mount?.opts?.fs?.lookupPath) {
+			if (
+				!node?.mount?.opts?.fs?.lookupPath ||
+				!node?.mount?.type?.realPath
+			) {
+				return false;
+			}
+
+			// Only NODEFS can be shared between workers at the moment.
+			if (node.mount.type !== NODEFS) {
+				return false;
+			}
+			const vfsPath = node.mount.type.realPath(node);
+			try {
+				const underlyingNode =
+					node.mount.opts.fs.lookupPath(vfsPath)?.node;
+				return !!underlyingNode?.isSharedFS;
+			} catch (e) {
 				return false;
 			}
-			const vfsPath = NODEFS.realPath(node);
-			const underlyingNode = node.mount.opts.fs.lookupPath(vfsPath)?.node;
-			return !!underlyingNode?.isSharedFS;
 		},
 		is_path_to_shared_fs(path) {
 			const { node } = FS.lookupPath(path);
diff --git a/packages/php-wasm/node/jspi/php_7_3.js b/packages/php-wasm/node/jspi/php_7_3.js
index d4f9ec00e2..a9589884e4 100644
--- a/packages/php-wasm/node/jspi/php_7_3.js
+++ b/packages/php-wasm/node/jspi/php_7_3.js
@@ -5659,13 +5659,27 @@ export function init(RuntimeName, PHPLoader) {
 			if (node?.isSharedFS) {
 				return true;
 			}
+
 			// Handle PROXYFS nodes which wrap other nodes.
-			if (!node?.mount?.opts?.fs?.lookupPath) {
+			if (
+				!node?.mount?.opts?.fs?.lookupPath ||
+				!node?.mount?.type?.realPath
+			) {
+				return false;
+			}
+
+			// Only NODEFS can be shared between workers at the moment.
+			if (node.mount.type !== NODEFS) {
+				return false;
+			}
+			const vfsPath = node.mount.type.realPath(node);
+			try {
+				const underlyingNode =
+					node.mount.opts.fs.lookupPath(vfsPath)?.node;
+				return !!underlyingNode?.isSharedFS;
+			} catch (e) {
 				return false;
 			}
-			const vfsPath = NODEFS.realPath(node);
-			const underlyingNode = node.mount.opts.fs.lookupPath(vfsPath)?.node;
-			return !!underlyingNode?.isSharedFS;
 		},
 		is_path_to_shared_fs(path) {
 			const { node } = FS.lookupPath(path);
diff --git a/packages/php-wasm/node/jspi/php_7_4.js b/packages/php-wasm/node/jspi/php_7_4.js
index 0613e02809..5f3054ed63 100644
--- a/packages/php-wasm/node/jspi/php_7_4.js
+++ b/packages/php-wasm/node/jspi/php_7_4.js
@@ -5659,13 +5659,27 @@ export function init(RuntimeName, PHPLoader) {
 			if (node?.isSharedFS) {
 				return true;
 			}
+
 			// Handle PROXYFS nodes which wrap other nodes.
-			if (!node?.mount?.opts?.fs?.lookupPath) {
+			if (
+				!node?.mount?.opts?.fs?.lookupPath ||
+				!node?.mount?.type?.realPath
+			) {
+				return false;
+			}
+
+			// Only NODEFS can be shared between workers at the moment.
+			if (node.mount.type !== NODEFS) {
+				return false;
+			}
+			const vfsPath = node.mount.type.realPath(node);
+			try {
+				const underlyingNode =
+					node.mount.opts.fs.lookupPath(vfsPath)?.node;
+				return !!underlyingNode?.isSharedFS;
+			} catch (e) {
 				return false;
 			}
-			const vfsPath = NODEFS.realPath(node);
-			const underlyingNode = node.mount.opts.fs.lookupPath(vfsPath)?.node;
-			return !!underlyingNode?.isSharedFS;
 		},
 		is_path_to_shared_fs(path) {
 			const { node } = FS.lookupPath(path);
diff --git a/packages/php-wasm/node/jspi/php_8_0.js b/packages/php-wasm/node/jspi/php_8_0.js
index cd98a81ab5..2090f2b148 100644
--- a/packages/php-wasm/node/jspi/php_8_0.js
+++ b/packages/php-wasm/node/jspi/php_8_0.js
@@ -5677,13 +5677,27 @@ export function init(RuntimeName, PHPLoader) {
 			if (node?.isSharedFS) {
 				return true;
 			}
+
 			// Handle PROXYFS nodes which wrap other nodes.
-			if (!node?.mount?.opts?.fs?.lookupPath) {
+			if (
+				!node?.mount?.opts?.fs?.lookupPath ||
+				!node?.mount?.type?.realPath
+			) {
+				return false;
+			}
+
+			// Only NODEFS can be shared between workers at the moment.
+			if (node.mount.type !== NODEFS) {
+				return false;
+			}
+			const vfsPath = node.mount.type.realPath(node);
+			try {
+				const underlyingNode =
+					node.mount.opts.fs.lookupPath(vfsPath)?.node;
+				return !!underlyingNode?.isSharedFS;
+			} catch (e) {
 				return false;
 			}
-			const vfsPath = NODEFS.realPath(node);
-			const underlyingNode = node.mount.opts.fs.lookupPath(vfsPath)?.node;
-			return !!underlyingNode?.isSharedFS;
 		},
 		is_path_to_shared_fs(path) {
 			const { node } = FS.lookupPath(path);
diff --git a/packages/php-wasm/node/jspi/php_8_1.js b/packages/php-wasm/node/jspi/php_8_1.js
index 44bcf442a9..17bc427972 100644
--- a/packages/php-wasm/node/jspi/php_8_1.js
+++ b/packages/php-wasm/node/jspi/php_8_1.js
@@ -5677,13 +5677,27 @@ export function init(RuntimeName, PHPLoader) {
 			if (node?.isSharedFS) {
 				return true;
 			}
+
 			// Handle PROXYFS nodes which wrap other nodes.
-			if (!node?.mount?.opts?.fs?.lookupPath) {
+			if (
+				!node?.mount?.opts?.fs?.lookupPath ||
+				!node?.mount?.type?.realPath
+			) {
+				return false;
+			}
+
+			// Only NODEFS can be shared between workers at the moment.
+			if (node.mount.type !== NODEFS) {
+				return false;
+			}
+			const vfsPath = node.mount.type.realPath(node);
+			try {
+				const underlyingNode =
+					node.mount.opts.fs.lookupPath(vfsPath)?.node;
+				return !!underlyingNode?.isSharedFS;
+			} catch (e) {
 				return false;
 			}
-			const vfsPath = NODEFS.realPath(node);
-			const underlyingNode = node.mount.opts.fs.lookupPath(vfsPath)?.node;
-			return !!underlyingNode?.isSharedFS;
 		},
 		is_path_to_shared_fs(path) {
 			const { node } = FS.lookupPath(path);
diff --git a/packages/php-wasm/node/jspi/php_8_2.js b/packages/php-wasm/node/jspi/php_8_2.js
index 011565e51f..464b4d25b7 100644
--- a/packages/php-wasm/node/jspi/php_8_2.js
+++ b/packages/php-wasm/node/jspi/php_8_2.js
@@ -5677,13 +5677,27 @@ export function init(RuntimeName, PHPLoader) {
 			if (node?.isSharedFS) {
 				return true;
 			}
+
 			// Handle PROXYFS nodes which wrap other nodes.
-			if (!node?.mount?.opts?.fs?.lookupPath) {
+			if (
+				!node?.mount?.opts?.fs?.lookupPath ||
+				!node?.mount?.type?.realPath
+			) {
+				return false;
+			}
+
+			// Only NODEFS can be shared between workers at the moment.
+			if (node.mount.type !== NODEFS) {
+				return false;
+			}
+			const vfsPath = node.mount.type.realPath(node);
+			try {
+				const underlyingNode =
+					node.mount.opts.fs.lookupPath(vfsPath)?.node;
+				return !!underlyingNode?.isSharedFS;
+			} catch (e) {
 				return false;
 			}
-			const vfsPath = NODEFS.realPath(node);
-			const underlyingNode = node.mount.opts.fs.lookupPath(vfsPath)?.node;
-			return !!underlyingNode?.isSharedFS;
 		},
 		is_path_to_shared_fs(path) {
 			const { node } = FS.lookupPath(path);
diff --git a/packages/php-wasm/node/jspi/php_8_3.js b/packages/php-wasm/node/jspi/php_8_3.js
index 6d9f7c574b..31f4f1f6ee 100644
--- a/packages/php-wasm/node/jspi/php_8_3.js
+++ b/packages/php-wasm/node/jspi/php_8_3.js
@@ -5677,13 +5677,27 @@ export function init(RuntimeName, PHPLoader) {
 			if (node?.isSharedFS) {
 				return true;
 			}
+
 			// Handle PROXYFS nodes which wrap other nodes.
-			if (!node?.mount?.opts?.fs?.lookupPath) {
+			if (
+				!node?.mount?.opts?.fs?.lookupPath ||
+				!node?.mount?.type?.realPath
+			) {
+				return false;
+			}
+
+			// Only NODEFS can be shared between workers at the moment.
+			if (node.mount.type !== NODEFS) {
+				return false;
+			}
+			const vfsPath = node.mount.type.realPath(node);
+			try {
+				const underlyingNode =
+					node.mount.opts.fs.lookupPath(vfsPath)?.node;
+				return !!underlyingNode?.isSharedFS;
+			} catch (e) {
 				return false;
 			}
-			const vfsPath = NODEFS.realPath(node);
-			const underlyingNode = node.mount.opts.fs.lookupPath(vfsPath)?.node;
-			return !!underlyingNode?.isSharedFS;
 		},
 		is_path_to_shared_fs(path) {
 			const { node } = FS.lookupPath(path);
diff --git a/packages/php-wasm/node/jspi/php_8_4.js b/packages/php-wasm/node/jspi/php_8_4.js
index 9c4f7a517f..d0c72492d3 100644
--- a/packages/php-wasm/node/jspi/php_8_4.js
+++ b/packages/php-wasm/node/jspi/php_8_4.js
@@ -5677,13 +5677,27 @@ export function init(RuntimeName, PHPLoader) {
 			if (node?.isSharedFS) {
 				return true;
 			}
+
 			// Handle PROXYFS nodes which wrap other nodes.
-			if (!node?.mount?.opts?.fs?.lookupPath) {
+			if (
+				!node?.mount?.opts?.fs?.lookupPath ||
+				!node?.mount?.type?.realPath
+			) {
+				return false;
+			}
+
+			// Only NODEFS can be shared between workers at the moment.
+			if (node.mount.type !== NODEFS) {
+				return false;
+			}
+			const vfsPath = node.mount.type.realPath(node);
+			try {
+				const underlyingNode =
+					node.mount.opts.fs.lookupPath(vfsPath)?.node;
+				return !!underlyingNode?.isSharedFS;
+			} catch (e) {
 				return false;
 			}
-			const vfsPath = NODEFS.realPath(node);
-			const underlyingNode = node.mount.opts.fs.lookupPath(vfsPath)?.node;
-			return !!underlyingNode?.isSharedFS;
 		},
 		is_path_to_shared_fs(path) {
 			const { node } = FS.lookupPath(path);