diff --git a/pkgs/development/interpreters/php/default.nix b/pkgs/development/interpreters/php/default.nix
index 67ba470ac01..ae4e9b9635d 100644
--- a/pkgs/development/interpreters/php/default.nix
+++ b/pkgs/development/interpreters/php/default.nix
@@ -1,9 +1,9 @@
 # pcre functionality is tested in nixos/tests/php-pcre.nix
 { lib, stdenv, fetchurl, flex, bison, autoconf
 , mysql, libxml2, readline, zlib, curl, postgresql, gettext
-, openssl, pcre, pkgconfig, sqlite, config, libjpeg, libpng, freetype
+, openssl, pcre, pcre2, pkgconfig, sqlite, config, libjpeg, libpng, freetype
 , libxslt, libmcrypt, bzip2, icu, openldap, cyrus_sasl, libmhash, freetds
-, uwimap, pam, gmp, apacheHttpd, libiconv, systemd, libsodium, html-tidy, libargon2
+, uwimap, pam, gmp, apacheHttpd, libiconv, systemd, libsodium, html-tidy, libargon2, libzip
 }:
 
 with lib;
@@ -42,7 +42,7 @@ let
   , intlSupport ? config.php.intl or true
   , exifSupport ? config.php.exif or true
   , xslSupport ? config.php.xsl or false
-  , mcryptSupport ? config.php.mcrypt or true
+  , mcryptSupport ? (config.php.mcrypt or true) && (versionOlder version "7.2")
   , bz2Support ? config.php.bz2 or false
   , zipSupport ? config.php.zip or true
   , ftpSupport ? config.php.ftp or true
@@ -54,6 +54,11 @@ let
   , sodiumSupport ? (config.php.sodium or true) && (versionAtLeast version "7.2")
   , tidySupport ? (config.php.tidy or false)
   , argon2Support ? (config.php.argon2 or true) && (versionAtLeast version "7.2")
+  , libzipSupport ? (config.php.libzip or true) && (versionAtLeast version "7.3")
+  , phpdbgSupport ? config.php.phpdbg or true
+  , cgiSupport ? config.php.cgi or true
+  , cliSupport ? config.php.cli or true
+  , pharSupport ? config.php.phar or true
   }:
 
     let
@@ -68,7 +73,9 @@ let
       enableParallelBuilding = true;
 
       nativeBuildInputs = [ pkgconfig autoconf ];
-      buildInputs = [ flex bison pcre ]
+      buildInputs = [ flex bison ]
+        ++ optional (versionOlder version "7.3") pcre
+        ++ optional (versionAtLeast version "7.3") pcre2
         ++ optional withSystemd systemd
         ++ optionals imapSupport [ uwimap openssl pam ]
         ++ optionals curlSupport [ curl openssl ]
@@ -96,15 +103,16 @@ let
         ++ optional (mssqlSupport && !stdenv.isDarwin) freetds
         ++ optional sodiumSupport libsodium
         ++ optional tidySupport html-tidy
-        ++ optional argon2Support libargon2;
+        ++ optional argon2Support libargon2
+        ++ optional libzipSupport libzip;
 
       CXXFLAGS = optional stdenv.cc.isClang "-std=c++11";
 
-
       configureFlags = [
         "--with-config-file-scan-dir=/etc/php.d"
-        "--with-pcre-regex=${pcre.dev} PCRE_LIBDIR=${pcre}"
       ]
+      ++ optional (versionOlder version "7.3") "--with-pcre-regex=${pcre.dev} PCRE_LIBDIR=${pcre}"
+      ++ optional (versionAtLeast version "7.3") "--with-pcre-regex=${pcre2.dev} PCRE_LIBDIR=${pcre2}"
       ++ optional stdenv.isDarwin "--with-iconv=${libiconv}"
       ++ optional withSystemd "--with-fpm-systemd"
       ++ optionals imapSupport [
@@ -163,8 +171,13 @@ let
       ++ optional calendarSupport "--enable-calendar"
       ++ optional sodiumSupport "--with-sodium=${libsodium.dev}"
       ++ optional tidySupport "--with-tidy=${html-tidy}"
-      ++ optional argon2Support "--with-password-argon2=${libargon2}";
-
+      ++ optional argon2Support "--with-password-argon2=${libargon2}"
+      ++ optional libzipSupport "--with-libzip=${libzip.dev}"
+      ++ optional phpdbgSupport "--enable-phpdbg"
+      ++ optional (!phpdbgSupport) "--disable-phpdbg"
+      ++ optional (!cgiSupport) "--disable-cgi"
+      ++ optional (!cliSupport) "--disable-cli"
+      ++ optional (!pharSupport) "--disable-phar";
 
       hardeningDisable = [ "bindnow" ];
 
@@ -189,6 +202,7 @@ let
       '';
 
       postInstall = ''
+        test -d $out/etc || mkdir $out/etc
         cp php.ini-production $out/etc/php.ini
       '';
 
@@ -228,18 +242,30 @@ let
 
 in {
   php71 = generic {
-    version = "7.1.24";
-    sha256 = "02qy76krbdhlbkzs9k1sa5mgmj0qnbb8gcf1j3q0cq3z7kkj9pk6";
+    version = "7.1.25";
+    sha256 = "1b5az5vhap593ggjxirs1zdlg20hcv9h94iq5kgaxky71a4dqb00";
 
     # https://bugs.php.net/bug.php?id=76826
     extraPatches = optional stdenv.isDarwin ./php71-darwin-isfinite.patch;
   };
 
   php72 = generic {
-    version = "7.2.12";
-    sha256 = "1dpnbsv4bdlc5v40ddddi971f456jp1qrn89w5di1dj70g1c895p";
+    version = "7.2.13";
+    sha256 = "0bg9nfc250p24hxn4bdjz7ngcw75h8rpf4qjxqzcs6s9fvxlcjjv";
 
+    # https://bugs.php.net/bug.php?id=71041
     # https://bugs.php.net/bug.php?id=76826
-    extraPatches = optional stdenv.isDarwin ./php72-darwin-isfinite.patch;
+    extraPatches = [ ./fix-bug-71041.patch ]
+      ++ optional stdenv.isDarwin ./php72-darwin-isfinite.patch;
+  };
+
+  php73 = generic {
+    version = "7.3.0";
+    sha256 = "0rvwx37dsmxivgrf4wfc1y778iln498c6a40biy9k6lnr6p7s9ks";
+
+    # https://bugs.php.net/bug.php?id=71041
+    # https://bugs.php.net/bug.php?id=76826
+    extraPatches = [ ./fix-bug-71041.patch ]
+      ++ optional stdenv.isDarwin ./php73-darwin-isfinite.patch;
   };
 }
diff --git a/pkgs/development/interpreters/php/fix-bug-71041.patch b/pkgs/development/interpreters/php/fix-bug-71041.patch
new file mode 100644
index 00000000000..350b635bdf3
--- /dev/null
+++ b/pkgs/development/interpreters/php/fix-bug-71041.patch
@@ -0,0 +1,25 @@
+diff --git a/Zend/zend_signal.c b/Zend/zend_signal.c
+index 24d454d..6307620 100644
+--- a/Zend/zend_signal.c
++++ b/Zend/zend_signal.c
+@@ -399,7 +399,7 @@ void zend_signal_init(void) /* {{{ */
+ 
+ /* {{{ zend_signal_startup
+  * alloc zend signal globals */
+-void zend_signal_startup(void)
++ZEND_API void zend_signal_startup(void)
+ {
+ 
+ #ifdef ZTS
+diff --git a/Zend/zend_signal.h b/Zend/zend_signal.h
+index e8ee7d6..462d06f 100644
+--- a/Zend/zend_signal.h
++++ b/Zend/zend_signal.h
+@@ -89,7 +89,7 @@ ZEND_API void zend_signal_handler_unblock(void);
+ void zend_signal_activate(void);
+ void zend_signal_deactivate(void);
+ BEGIN_EXTERN_C()
+-void zend_signal_startup(void);
++ZEND_API void zend_signal_startup(void);
+ END_EXTERN_C()
+ void zend_signal_init(void);
diff --git a/pkgs/development/interpreters/php/php73-darwin-isfinite.patch b/pkgs/development/interpreters/php/php73-darwin-isfinite.patch
new file mode 100644
index 00000000000..7f784e0f5a9
--- /dev/null
+++ b/pkgs/development/interpreters/php/php73-darwin-isfinite.patch
@@ -0,0 +1,60 @@
+diff -ru a/configure.ac b/configure.ac
+--- a/configure.ac      2018-12-04 19:12:20.000000000 +0300
++++ b/configure.ac      2018-12-10 12:30:37.798917520 +0300
+@@ -68,7 +68,7 @@
+ #include <math.h>
+
+ #ifndef zend_isnan
+-#if HAVE_DECL_ISNAN && (!defined(__cplusplus) || __cplusplus < 201103L)
++#if HAVE_DECL_ISNAN && (defined(__APPLE__) || defined(__APPLE_CC__) || !defined(__cplusplus) || __cplusplus < 201103L)
+ #define zend_isnan(a) isnan(a)
+ #elif defined(HAVE_FPCLASS)
+ #define zend_isnan(a) ((fpclass(a) == FP_SNAN) || (fpclass(a) == FP_QNAN))
+@@ -77,7 +77,7 @@
+ #endif
+ #endif
+
+-#if HAVE_DECL_ISINF && (!defined(__cplusplus) || __cplusplus < 201103L)
++#if HAVE_DECL_ISINF && (defined(__APPLE__) || defined(__APPLE_CC__) || !defined(__cplusplus) || __cplusplus < 201103L)
+ #define zend_isinf(a) isinf(a)
+ #elif defined(INFINITY)
+ /* Might not work, but is required by ISO C99 */
+@@ -88,7 +88,7 @@
+ #define zend_isinf(a) 0
+ #endif
+
+-#if HAVE_DECL_ISFINITE && (!defined(__cplusplus) || __cplusplus < 201103L)
++#if HAVE_DECL_ISFINITE && (defined(__APPLE__) || defined(__APPLE_CC__) || !defined(__cplusplus) || __cplusplus < 201103L)
+ #define zend_finite(a) isfinite(a)
+ #elif defined(HAVE_FINITE)
+ #define zend_finite(a) finite(a)
+diff -ru a/Zend/configure.ac b/Zend/configure.ac
+--- a/Zend/configure.ac 2018-12-04 19:12:30.000000000 +0300
++++ b/Zend/configure.ac 2018-12-10 12:28:50.350929699 +0300
+@@ -59,7 +59,7 @@
+ #include <math.h>
+
+ #ifndef zend_isnan
+-#if HAVE_DECL_ISNAN && (!defined(__cplusplus) || __cplusplus < 201103L)
++#if HAVE_DECL_ISNAN && (defined(__APPLE__) || defined(__APPLE_CC__) || !defined(__cplusplus) || __cplusplus < 201103L)
+ #define zend_isnan(a) isnan(a)
+ #elif defined(HAVE_FPCLASS)
+ #define zend_isnan(a) ((fpclass(a) == FP_SNAN) || (fpclass(a) == FP_QNAN))
+@@ -68,7 +68,7 @@
+ #endif
+ #endif
+
+-#if HAVE_DECL_ISINF && (!defined(__cplusplus) || __cplusplus < 201103L)
++#if HAVE_DECL_ISINF && (defined(__APPLE__) || defined(__APPLE_CC__) || !defined(__cplusplus) || __cplusplus < 201103L)
+ #define zend_isinf(a) isinf(a)
+ #elif defined(INFINITY)
+ /* Might not work, but is required by ISO C99 */
+@@ -79,7 +79,7 @@
+ #define zend_isinf(a) 0
+ #endif
+
+-#if HAVE_DECL_ISFINITE && (!defined(__cplusplus) || __cplusplus < 201103L)
++#if HAVE_DECL_ISFINITE && (defined(__APPLE__) || defined(__APPLE_CC__) || !defined(__cplusplus) || __cplusplus < 201103L)
+ #define zend_finite(a) isfinite(a)
+ #elif defined(HAVE_FINITE)
+ #define zend_finite(a) finite(a)
diff --git a/pkgs/servers/http/unit/default.nix b/pkgs/servers/http/unit/default.nix
index 68676a07bf0..d39c25bec2a 100644
--- a/pkgs/servers/http/unit/default.nix
+++ b/pkgs/servers/http/unit/default.nix
@@ -3,6 +3,7 @@
 , python
 , php71
 , php72
+, php73
 , perl526
 , perl
 , perldevel
@@ -30,6 +31,7 @@ stdenv.mkDerivation rec {
     python
     php71
     php72
+    php73
     perl526
     perl
     perldevel
@@ -49,6 +51,7 @@ stdenv.mkDerivation rec {
     ./configure python  --module=python    --config=${python}/bin/python-config  --lib-path=${python}/lib
     ./configure php     --module=php71     --config=${php71.dev}/bin/php-config  --lib-path=${php71}/lib
     ./configure php     --module=php72     --config=${php72.dev}/bin/php-config  --lib-path=${php72}/lib
+    ./configure php     --module=php73     --config=${php73.dev}/bin/php-config  --lib-path=${php73}/lib
     ./configure perl    --module=perl526   --perl=${perl526}/bin/perl
     ./configure perl    --module=perl      --perl=${perl}/bin/perl
     ./configure perl    --module=perl529   --perl=${perldevel}/bin/perl
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d6d4f349002..64ef63f55ab 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7835,18 +7835,28 @@ in
     php = php72;
   });
 
+  php73Packages = recurseIntoAttrs (callPackage ./php-packages.nix {
+    php = php73;
+  });
+
   phpPackages-unit = php72Packages-unit;
 
   php71Packages-unit = recurseIntoAttrs (callPackage ./php-packages.nix {
     php = php71-unit;
   });
-   php72Packages-unit = recurseIntoAttrs (callPackage ./php-packages.nix {
+
+  php72Packages-unit = recurseIntoAttrs (callPackage ./php-packages.nix {
     php = php72-unit;
   });
 
+   php73Packages-unit = recurseIntoAttrs (callPackage ./php-packages.nix {
+    php = php73-unit;
+  });
+
   inherit (callPackages ../development/interpreters/php { })
     php71
-    php72;
+    php72
+    php73;
 
   php-embed = php72-embed;
 
@@ -7860,12 +7870,19 @@ in
     config.php.apxs2 = false;
   };
 
+  php73-embed = php73.override {
+    config.php.embed = true;
+    config.php.apxs2 = false;
+  };
+
   php-unit = php72-unit;
 
   php71-unit = php71.override {
     config.php.embed = true;
     config.php.apxs2 = false;
     config.php.systemd = false;
+    config.php.phpdbg = false;
+    config.php.cgi = false;
     config.php.fpm = false;
   };
 
@@ -7873,6 +7890,17 @@ in
     config.php.embed = true;
     config.php.apxs2 = false;
     config.php.systemd = false;
+    config.php.phpdbg = false;
+    config.php.cgi = false;
+    config.php.fpm = false;
+  };
+
+  php73-unit = php73.override {
+    config.php.embed = true;
+    config.php.apxs2 = false;
+    config.php.systemd = false;
+    config.php.phpdbg = false;
+    config.php.cgi = false;
     config.php.fpm = false;
   };
 
@@ -13551,6 +13579,7 @@ in
   unit = callPackage ../servers/http/unit {
     php71 = php71-unit;
     php72 = php72-unit;
+    php73 = php73-unit;
   };
 
   nginx = nginxStable;
diff --git a/pkgs/top-level/php-packages.nix b/pkgs/top-level/php-packages.nix
index 273592428e0..481bdcdf81c 100644
--- a/pkgs/top-level/php-packages.nix
+++ b/pkgs/top-level/php-packages.nix
@@ -7,10 +7,12 @@ let
       inherit (pkgs) stdenv autoreconfHook fetchurl;
     };
 
+  isPhp73 = pkgs.lib.versionAtLeast php.version "7.3";
+
   apcu = buildPecl {
-    name = "apcu-5.1.11";
-    sha256 = "0nz9m3fbxgyc2ij63yqmxm06a1f51g8rkxk85f85ziqdin66q2f1";
-    buildInputs = [ pkgs.pcre ];
+    name = "apcu-5.1.15";
+    sha256 = "0v91fxh3z3amwicqlmz7lvnh4zfl2d7kj2zc8pvlvj2lms8ql5zc";
+    buildInputs = [ (if isPhp73 then pkgs.pcre2 else pkgs.pcre) ];
     doCheck = true;
     checkTarget = "test";
     checkFlagsArray = ["REPORT_EXIT_STATUS=1" "NO_INTERACTION=1"];
@@ -21,7 +23,7 @@ let
   apcu_bc = buildPecl {
     name = "apcu_bc-1.0.4";
     sha256 = "1raww7alwayg9nk0akly1mdrjypxlwg8safnmaczl773cwpw5cbw";
-    buildInputs = [ apcu pkgs.pcre ];
+    buildInputs = [ apcu (if isPhp73 then pkgs.pcre2 else pkgs.pcre) ];
   };
 
   ast = buildPecl {
@@ -32,7 +34,7 @@ let
 
   couchbase = buildPecl rec {
     name = "couchbase-${version}";
-    version = "2.3.4";
+    version = "2.6.0";
 
     buildInputs = [ pkgs.libcouchbase pkgs.zlib igbinary pcs ];
 
@@ -40,7 +42,7 @@ let
       owner = "couchbase";
       repo = "php-couchbase";
       rev = "v${version}";
-      sha256 = "0rdlrl7vh4kbxxj9yxp54xpnnrxydpa9fab7dy4nas474j5vb2bp";
+      sha256 = "0lhcvgd4a0wvxniinxajj48p5krbp44h8932021qq14rv94r4k0b";
     };
 
     configureFlags = [ "--with-couchbase" ];
@@ -87,7 +89,7 @@ let
   };
 
   igbinary = buildPecl {
-    name = "igbinary-2.0.4";
+    name = "igbinary-2.0.8";
 
     configureFlags = [ "--enable-igbinary" ];
 
@@ -95,10 +97,10 @@ let
 
     outputs = [ "out" "dev" ];
 
-    sha256 = "0a55l4f0bgbf3f6sh34njd14niwagg829gfkvb8n5fs69xqab67d";
+    sha256 = "105nyn703k9p9c7wwy6npq7xd9mczmmlhyn0gn2v2wz0f88spjxs";
   };
 
-  mailparse = buildPecl {
+  mailparse = assert !isPhp73; buildPecl {
     name = "mailparse-3.0.2";
 
     sha256 = "0fw447ralqihsjnn0fm2hkaj8343cvb90v0d1wfclgz49256y6nq";
@@ -109,10 +111,12 @@ let
     sha256 = "0z2nc92xfc5axa9f2dy95rmsd2c81q8cs1pm4anh0a50x9g5ng0z";
     configureFlags = [ "--with-imagick=${pkgs.imagemagick.dev}" ];
     nativeBuildInputs = [ pkgs.pkgconfig ];
-    buildInputs = [ pkgs.pcre ];
+    buildInputs = [ (if isPhp73 then pkgs.pcre2 else pkgs.pcre) ];
   };
 
-  memcached = buildPecl rec {
+  memcached = if isPhp73 then memcached73 else memcached7;
+
+  memcached7 = assert !isPhp73; buildPecl rec {
     name = "memcached-php7";
 
     src = fetchgit {
@@ -130,6 +134,24 @@ let
     buildInputs = with pkgs; [ cyrus_sasl zlib ];
   };
 
+  memcached73 = assert isPhp73; buildPecl rec {
+    name = "memcached-php73";
+
+    src = fetchgit {
+      url = "https://github.com/php-memcached-dev/php-memcached";
+      rev = "6d8f5d524f35e72422b9e81319b96f23af02adcc";
+      sha256 = "1s1d5r3n2h9zys8sqvv52fld6jy21ki7cl0gbbvd9dixqc0lf1jh";
+    };
+
+    configureFlags = [
+      "--with-zlib-dir=${pkgs.zlib.dev}"
+      "--with-libmemcached-dir=${pkgs.libmemcached}"
+    ];
+
+    nativeBuildInputs = [ pkgs.pkgconfig ];
+    buildInputs = with pkgs; [ cyrus_sasl zlib ];
+  };
+
   oci8 = buildPecl rec {
     name = "oci8-2.1.8";
     sha256 = "1bp6fss2f2qmd5bdk7x22j8vx5qivrdhz4x7csf29vjgj6gvchxy";
@@ -143,7 +165,9 @@ let
     sha256 = "0d4p1gpl8gkzdiv860qzxfz250ryf0wmjgyc8qcaaqgkdyh5jy5p";
   };
 
-  xdebug = buildPecl {
+  xdebug =  if isPhp73 then xdebug73 else xdebug7;
+
+  xdebug7 = assert !isPhp73; buildPecl {
     name = "xdebug-2.6.1";
 
     sha256 = "0xxxy6n4lv7ghi9liqx133yskg07lw316vhcds43n1sjq3b93rns";
@@ -152,10 +176,19 @@ let
     checkTarget = "test";
   };
 
-  yaml = buildPecl {
-    name = "yaml-2.0.2";
+  xdebug73 = assert isPhp73; buildPecl {
+    name = "xdebug-2.7.0beta1";
 
-    sha256 = "0f80zy79kyy4hn6iigpgfkwppwldjfj5g7s4gddklv3vskdb1by3";
+    sha256 = "1ghh14z55l4jklinkgjkfhkw53lp2r7lgmyh7q8kdnf7jnpwx84h";
+
+    doCheck = true;
+    checkTarget = "test";
+  };
+
+  yaml = buildPecl {
+    name = "yaml-2.0.4";
+
+    sha256 = "1036zhc5yskdfymyk8jhwc34kvkvsn5kaf50336153v4dqwb11lp";
 
     configureFlags = [
       "--with-yaml=${pkgs.libyaml}"
@@ -164,7 +197,7 @@ let
     nativeBuildInputs = [ pkgs.pkgconfig ];
   };
 
-  zmq = buildPecl {
+  zmq = assert !isPhp73; buildPecl {
     name = "zmq-1.1.3";
 
     sha256 = "1kj487vllqj9720vlhfsmv32hs2dy2agp6176mav6ldx31c3g4n4";
@@ -197,11 +230,11 @@ let
     configureFlags = [ "--with-v8=${pkgs.v8_6_x}" ];
   };
 
-  v8js = buildPecl rec {
-    version = "1.4.1";
+  v8js = assert !isPhp73; buildPecl rec {
+    version = "2.1.0";
     name = "v8js-${version}";
 
-    sha256 = "0k5dc395gzva4l6n9mzvkhkjq914460cwk1grfandcqy73j6m89q";
+    sha256 = "0g63dyhhicngbgqg34wl91nm3556vzdgkq19gy52gvmqj47rj6rg";
 
     buildInputs = [ pkgs.v8_6_x ];
     configureFlags = [ "--with-v8js=${pkgs.v8_6_x}" ];