Drop php7.0 support

.gitignore

@@ -137,6 +137,7 @@ conformance/*.class
 
 # php test output
 composer.lock
+php/.phpunit.result.cache
 php/tests/.phpunit.result.cache
 php/tests/generated/
 php/tests/old_protoc
@@ -162,6 +163,7 @@ php/ext/google/protobuf/configure.ac
 php/ext/google/protobuf/configure.in
 php/ext/google/protobuf/mkinstalldirs
 php/ext/google/protobuf/run-tests.php
+php/ext/google/protobuf/third_party/
 vendor/
 
 # JavaScript artifacts

php/composer.json

@@ -6,10 +6,10 @@
   "homepage": "https://developers.google.com/protocol-buffers/",
   "license": "BSD-3-Clause",
   "require": {
-    "php": ">=7.0.0"
+    "php": ">=7.1.0"
   },
   "require-dev": {
-    "phpunit/phpunit": ">=5.0.0"
+    "phpunit/phpunit": ">=7.5.0"
   },
   "autoload": {
     "psr-4": {

tests.sh

@@ -467,43 +467,6 @@ use_php_zts() {
   internal_build_cpp
 }
 
-build_php7.0() {
-  use_php 7.0
-  pushd php
-  rm -rf vendor
-  composer update
-  composer test
-  popd
-  (cd conformance && make test_php)
-}
-
-build_php7.0_c() {
-  use_php 7.0
-  php/tests/test.sh
-  pushd conformance
-  make test_php_c
-  popd
-}
-
-build_php7.0_mixed() {
-  use_php 7.0
-  pushd php
-  rm -rf vendor
-  composer update
-  tests/compile_extension.sh
-  tests/generate_protos.sh
-  php -dextension=./ext/google/protobuf/modules/protobuf.so ./vendor/bin/phpunit
-  popd
-}
-
-build_php7.0_zts_c() {
-  use_php_zts 7.0
-  php/tests/test.sh
-  pushd conformance
-  make test_php_c
-  popd
-}
-
 build_php7.0_mac() {
   internal_build_cpp
   # Install PHP
@@ -666,16 +629,12 @@ build_php8.0_all() {
 }
 
 build_php_all_32() {
-  build_php7.0
   build_php7.1
   build_php7.4
-  build_php7.0_c $1
   build_php7.1_c $1
   build_php7.4_c $1
-  build_php7.0_mixed
   build_php7.1_mixed
   build_php7.4_mixed
-  build_php7.0_zts_c $1
   build_php7.1_zts_c $1
   build_php7.4_zts_c $1
 }
@@ -720,12 +679,11 @@ Usage: $0 { cpp |
             ruby27 |
             jruby |
             ruby_all |
-            php7.0   |
-            php7.0_c |
             php_compatibility |
             php7.1   |
             php7.1_c |
             php_all |
+            php8.0_all |
             dist_install |
             benchmark)
 "