diff --git a/data/supported-extensions b/data/supported-extensions
index cac4d05..a52a638 100644
--- a/data/supported-extensions
+++ b/data/supported-extensions
@@ -68,6 +68,7 @@ sockets 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 solr 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 sqlsrv 7.0 7.1 7.2 7.3 7.4
 ssh2 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+swoole 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 sybase_ct 5.5 5.6
 sysvmsg 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 sysvsem 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
diff --git a/install-php-extensions b/install-php-extensions
index 1b5aa9e..5a309ec 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -259,6 +259,12 @@ sortModulesToInstall() {
 		PHP_MODULES_TO_INSTALL="msgpack $PHP_MODULES_TO_INSTALL"
 		PHP_MODULES_TO_INSTALL="${PHP_MODULES_TO_INSTALL% }"
 	fi
+	# Some module installation may use socket if available: move it before other modules
+	if stringInList 'socket' "$PHP_MODULES_TO_INSTALL"; then
+		PHP_MODULES_TO_INSTALL="$(removeStringFromList 'socket' "$PHP_MODULES_TO_INSTALL")"
+		PHP_MODULES_TO_INSTALL="socket $PHP_MODULES_TO_INSTALL"
+		PHP_MODULES_TO_INSTALL="${PHP_MODULES_TO_INSTALL% }"
+	fi
 	# In any case, first of all, we need to install composer
 	if stringInList '@composer' "$PHP_MODULES_TO_INSTALL"; then
 		PHP_MODULES_TO_INSTALL="$(removeStringFromList '@composer' "$PHP_MODULES_TO_INSTALL")"
@@ -713,6 +719,23 @@ buildRequiredPackageLists() {
 			ssh2@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libssh2-1-dev"
 				;;
+			swoole@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent postgresql-libs libstdc++"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile postgresql-dev linux-headers"
+				case "$DISTRO_VERSION" in
+					alpine@3.7 | alpine@3.8)
+						# I can assure you I tried very hard to enable openssl in these Alpine versions...
+						;;
+					*)
+						buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent $buildRequiredPackageLists_libssl"
+						buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libressl-dev"
+						;;
+				esac
+				;;
+			swoole@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libpq5"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $buildRequiredPackageLists_libssldev libpq-dev"
+				;;
 			sybase_ct@alpine)
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent freetds"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
@@ -1295,6 +1318,7 @@ installPECLModule() {
 	installPECLModule_version="$(getWantedPHPModuleVersion "$installPECLModule_module")"
 	rm -rf "$CONFIGURE_FILE"
 	installPECLModule_manuallyInstalled=0
+	installPECLModule_cppflags=''
 	case "$installPECLModule_module" in
 		amqp)
 			case "$DISTRO_VERSION" in
@@ -1612,6 +1636,123 @@ installPECLModule() {
 				fi
 			fi
 			;;
+		swoole)
+			if test -z "$installPECLModule_version"; then
+				if test $PHP_MAJMIN_VERSION -le 502; then
+					installPECLModule_version=1.6.10
+				elif test $PHP_MAJMIN_VERSION -le 504; then
+					installPECLModule_version=2.0.4
+				elif test $PHP_MAJMIN_VERSION -le 506; then
+					installPECLModule_version=2.0.11
+				elif test $PHP_MAJMIN_VERSION -le 700; then
+					installPECLModule_version=4.3.6
+				fi
+			fi
+			if php --ri sockets >/dev/null 2>/dev/null; then
+				installPECLModule_sockets=yes
+			else
+				installPECLModule_sockets=no
+			fi
+			case "$DISTRO_VERSION" in
+				alpine@3.7 | alpine@3.8)
+					# I can assure you I tried very hard to enable openssl in these Alpine versions...
+					installPECLModule_openssl=no
+					;;
+				*)
+					installPECLModule_openssl=yes
+					;;
+			esac
+			if test -z "$installPECLModule_version" || test $(compareVersions "$installPECLModule_version" 4.4.0) -ge 0; then
+				# enable sockets supports?
+				addConfigureOption enable-sockets $installPECLModule_sockets
+				# enable openssl support?
+				addConfigureOption enable-openssl $installPECLModule_openssl
+				# enable http2 support?
+				addConfigureOption enable-http2 yes
+				# enable mysqlnd support?
+				addConfigureOption enable-mysqlnd yes
+			elif test $(compareVersions "$installPECLModule_version" 4.2.11) -ge 0; then
+				#enable sockets supports?
+				addConfigureOption enable-sockets $installPECLModule_sockets
+				# enable openssl support?
+				addConfigureOption enable-openssl $installPECLModule_openssl
+				# enable http2 support?
+				addConfigureOption enable-http2 yes
+				# enable mysqlnd support?
+				addConfigureOption enable-mysqlnd yes
+				# enable postgresql coroutine client support?
+				addConfigureOption enable-coroutine-postgresql yes
+			elif test $(compareVersions "$installPECLModule_version" 4.2.7) -ge 0; then
+				#enable sockets supports?
+				addConfigureOption enable-sockets $installPECLModule_sockets
+				# enable openssl support?
+				addConfigureOption enable-openssl $installPECLModule_openssl
+				# enable http2 support?
+				addConfigureOption enable-http2 yes
+				# enable mysqlnd support?
+				addConfigureOption enable-mysqlnd yes
+				# enable postgresql coroutine client support?
+				addConfigureOption enable-coroutine-postgresql yes
+				# enable kernel debug/trace log? (it will degrade performance)
+				addConfigureOption enable-debug-log no
+			elif test $(compareVersions "$installPECLModule_version" 4.2.6) -ge 0; then
+				# enable debug/trace log support?
+				addConfigureOption enable-debug-log no
+				#enable sockets supports?
+				addConfigureOption enable-sockets $installPECLModule_sockets
+				# enable openssl support?
+				addConfigureOption enable-openssl $installPECLModule_openssl
+				# enable http2 support?
+				addConfigureOption enable-http2 yes
+				# enable mysqlnd support?
+				addConfigureOption enable-mysqlnd yes
+				# enable postgresql coroutine client support?
+				addConfigureOption enable-coroutine-postgresql yes
+			elif test $(compareVersions "$installPECLModule_version" 4.2.0) -ge 0; then
+				# enable debug/trace log support?
+				addConfigureOption enable-debug-log no
+				#enable sockets supports?
+				addConfigureOption enable-sockets $installPECLModule_sockets
+				# enable openssl support?
+				addConfigureOption enable-openssl $installPECLModule_openssl
+				# enable http2 support?
+				addConfigureOption enable-http2 yes
+				# enable async-redis support?
+				addConfigureOption enable-async-redis yes
+				# enable mysqlnd support?
+				addConfigureOption enable-mysqlnd yes
+				# enable postgresql coroutine client support?
+				addConfigureOption enable-coroutine-postgresql yes
+			elif test $(compareVersions "$installPECLModule_version" 2.1.2) -ge 0; then
+				# enable debug/trace log support?
+				addConfigureOption enable-swoole-debug no
+				#enable sockets supports?
+				addConfigureOption enable-sockets $installPECLModule_sockets
+				# enable openssl support?
+				addConfigureOption enable-openssl $installPECLModule_openssl
+				# enable http2 support?
+				addConfigureOption enable-http2 yes
+				# enable async-redis support?
+				addConfigureOption enable-async-redis yes
+				# enable mysqlnd support?
+				addConfigureOption enable-mysqlnd yes
+				# enable postgresql coroutine client support?
+				addConfigureOption enable-coroutine-postgresql yes
+			elif test $(compareVersions "$installPECLModule_version" 1.10.4) -ge 0 && test $(compareVersions "$installPECLModule_version" 1.10.5) -le 0; then
+				# enable debug/trace log support?
+				addConfigureOption enable-swoole-debug no
+				#enable sockets supports?
+				addConfigureOption enable-sockets $installPECLModule_sockets
+				# enable openssl support?
+				addConfigureOption enable-openssl $installPECLModule_openssl
+				# enable http2 support?
+				addConfigureOption enable-http2 yes
+				# enable async-redis support?
+				addConfigureOption enable-async-redis yes
+				# enable mysqlnd support?
+				addConfigureOption enable-mysqlnd yes
+			fi
+			;;
 		tdlib)
 			if ! test -f /usr/lib/libphpcpp.so || ! test -f /usr/include/phpcpp.h; then
 				if test $PHP_MAJMIN_VERSION -le 701; then
@@ -1719,7 +1860,7 @@ installPECLModule() {
 		if test -n "$installPECLModule_version"; then
 			printf '  (installing version %s)\n' "$installPECLModule_version"
 		fi
-		installPeclPackage "$installPECLModule_module" "$installPECLModule_version"
+		installPeclPackage "$installPECLModule_module" "$installPECLModule_version" "$installPECLModule_cppflags"
 	fi
 	case "$installPECLModule_module" in
 		apcu_bc)
@@ -1769,7 +1910,7 @@ configureInstaller() {
 			if ! stringInList 'zip' "$PHP_PREINSTALLED_MODULES"; then
 				PHP_MODULES_TO_INSTALL="zip $(removeStringFromList 'zip' "$PHP_MODULES_TO_INSTALL")"
 			fi
-			if anyStringInList 'xdebug' "$PHP_MODULES_TO_INSTALL"; then
+			if anyStringInList 'swoole xdebug' "$PHP_MODULES_TO_INSTALL"; then
 				USE_PICKLE=2
 			else
 				curl -sSLf https://github.com/FriendsOfPHP/pickle/releases/latest/download/pickle.phar -o /tmp/pickle
@@ -1820,6 +1961,7 @@ addConfigureOption() {
 # Arguments:
 #   $1: the package to be installed
 #   $2: the package version to be installed (optional)
+#   $3: the value of the CPPFLAGS variable
 installPeclPackage() {
 	if ! test -f "$CONFIGURE_FILE"; then
 		printf '\n' >"$CONFIGURE_FILE"
@@ -1830,14 +1972,14 @@ installPeclPackage() {
 		else
 			installPeclPackage_fullname="$1-$2"
 		fi
-		cat "$CONFIGURE_FILE" | MAKE="make -j$(getCompilationProcessorCount $1)" pecl install "$installPeclPackage_fullname"
+		cat "$CONFIGURE_FILE" | MAKE="make -j$(getCompilationProcessorCount $1)" CPPFLAGS="${3:-}" pecl install "$installPeclPackage_fullname"
 	else
 		if test -z "${2:-}"; then
 			installPeclPackage_fullname="$1"
 		else
 			installPeclPackage_fullname="$1@$2"
 		fi
-		MAKE="make -j$(getCompilationProcessorCount $1)" /tmp/pickle install --tmp-dir=/tmp/pickle.tmp --no-interaction --with-configure-options "$CONFIGURE_FILE" -- "$installPeclPackage_fullname"
+		MAKE="make -j$(getCompilationProcessorCount $1)" CPPFLAGS="${3:-}" /tmp/pickle install --tmp-dir=/tmp/pickle.tmp --no-interaction --with-configure-options "$CONFIGURE_FILE" -- "$installPeclPackage_fullname"
 	fi
 }
 
@@ -1869,8 +2011,8 @@ stringInList() {
 #   0 (true): at least one of the items in $1 is in $2
 #   1 (false): otherwise
 anyStringInList() {
-	for anyStringInList in $1; do
-		if stringInList "$1" "$2"; then
+	for anyStringInList_item in $1; do
+		if stringInList "$anyStringInList_item" "$2"; then
 			return 0
 		fi
 	done