diff --git a/config/ext.json b/config/ext.json
index 16920649..e7321203 100644
--- a/config/ext.json
+++ b/config/ext.json
@@ -163,6 +163,17 @@
             "onig"
         ]
     },
+    "memcache": {
+        "type": "external",
+        "source": "ext-memcache",
+        "arg-type": "custom",
+        "lib-depends": [
+            "zlib"
+        ],
+        "ext-depends": [
+            "session"
+        ]
+    },
     "mongodb": {
         "type": "external",
         "source": "mongodb",
@@ -220,13 +231,6 @@
             "postgresql"
         ]
     },
-    "pgsql": {
-        "type": "builtin",
-        "arg-type": "with-prefix",
-        "lib-depends": [
-            "postgresql"
-        ]
-    },
     "pdo_sqlite": {
         "type": "builtin",
         "arg-type": "with",
@@ -238,6 +242,13 @@
             "sqlite"
         ]
     },
+    "pgsql": {
+        "type": "builtin",
+        "arg-type": "with-prefix",
+        "lib-depends": [
+            "postgresql"
+        ]
+    },
     "phar": {
         "type": "builtin",
         "ext-depends": [
diff --git a/config/source.json b/config/source.json
index 8410e5bd..41f96367 100644
--- a/config/source.json
+++ b/config/source.json
@@ -61,6 +61,16 @@
             "path": "LICENSE"
         }
     },
+    "ext-memcache": {
+        "type": "url",
+        "url": "https://pecl.php.net/get/memcache",
+        "path": "php-src/ext/memcache",
+        "filename": "memcache.tgz",
+        "license": {
+            "type": "file",
+            "path": "LICENSE"
+        }
+    },
     "ext-ssh2": {
         "type": "url",
         "url": "https://pecl.php.net/get/ssh2",
diff --git a/src/SPC/builder/extension/memcache.php b/src/SPC/builder/extension/memcache.php
new file mode 100644
index 00000000..2d2e2c94
--- /dev/null
+++ b/src/SPC/builder/extension/memcache.php
@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\builder\extension;
+
+use SPC\builder\Extension;
+use SPC\util\CustomExt;
+
+#[CustomExt('memcache')]
+class memcache extends Extension
+{
+    public function getUnixConfigureArg(): string
+    {
+        return '--enable-memcache --with-zlib-dir=' . BUILD_ROOT_PATH;
+    }
+}
diff --git a/src/SPC/store/SourcePatcher.php b/src/SPC/store/SourcePatcher.php
index dfefae54..56b3c7b9 100644
--- a/src/SPC/store/SourcePatcher.php
+++ b/src/SPC/store/SourcePatcher.php
@@ -48,9 +48,33 @@ class SourcePatcher
             file_put_contents(SOURCE_PATH . '/php-src/ext/curl/config.m4', $file1 . "\n" . $files . "\n" . $file2);
         }
 
-        // if ($builder->getExt('pdo_sqlite')) {
-        //    FileSystem::replaceFile()
-        // }
+        if ($builder->getExt('memcache')) {
+            FileSystem::replaceFile(
+                SOURCE_PATH . '/php-src/ext/memcache/config9.m4',
+                REPLACE_FILE_STR,
+                'if test -d $abs_srcdir/src ; then',
+                'if test -d $abs_srcdir/main ; then'
+            );
+            FileSystem::replaceFile(
+                SOURCE_PATH . '/php-src/ext/memcache/config9.m4',
+                REPLACE_FILE_STR,
+                'export CPPFLAGS="$CPPFLAGS $INCLUDES"',
+                'export CPPFLAGS="$CPPFLAGS $INCLUDES -I$abs_srcdir/main"'
+            );
+            // add for in-tree building
+            file_put_contents(
+                SOURCE_PATH . '/php-src/ext/memcache/php_memcache.h',
+                <<<'EOF'
+#ifndef PHP_MEMCACHE_H
+#define PHP_MEMCACHE_H
+
+extern zend_module_entry memcache_module_entry;
+#define phpext_memcache_ptr &memcache_module_entry
+
+#endif
+EOF
+            );
+        }
     }
 
     public static function patchSwow(): bool