PHPLIB-955: Require PHP 8.1 (#1374)

* PHPLIB-955: Require PHP 8.1

* Apply automated phpcs fixes for PHP 8.1

* Fix psalm issues

* Remove unnecessary type assertions

* Fix wrong type in DocumentsMatchConstraint

* Use constructor property promotion where possible

* Update Psalm baseline

* Remove commented code

* Use match statement instead of switch

* Fix breakage introduced by constructor property promotion

* Always access promoted options property in constructor

* Restore PackedArray as invalid document in tests

Author: alcaeus

.evergreen/config.yml

@@ -71,4 +71,3 @@ include:
   - filename: .evergreen/config/generated/test/require-api-version.yml
   - filename: .evergreen/config/generated/test/csfle.yml
   - filename: .evergreen/config/generated/test-variant/modern-php-full.yml
-  - filename: .evergreen/config/generated/test-variant/legacy-php-full.yml

.evergreen/config/build-task-groups.yml

@@ -11,22 +11,10 @@ task_groups:
   # Builds all versions of PHP
   - name: "build-all-php"
     # Keep this number in sync with the number of PHP versions to allow for parallel builds
-    max_hosts: 4
+    max_hosts: 3
     setup_task: *build_setup
     setup_task_can_fail_task: true
     setup_task_timeout_secs: 1800
     teardown_task: *build_teardown
     tasks:
       - ".build"
-
-  # Builds all versions of PHP that support OpenSSL 3 (PHP 8.1+)
-  - name: "build-php-openssl3"
-    # Keep this number in sync with the number of PHP versions to allow for parallel builds
-    # Subtract 2 versions as PHP 7.4 and 8.0 are not built with OpenSSL 3
-    max_hosts: 2
-    setup_task: *build_setup
-    setup_task_can_fail_task: true
-    setup_task_timeout_secs: 1800
-    teardown_task: *build_teardown
-    tasks:
-      - ".build !.php7.4 !.php8.0"

.evergreen/config/build-variants.yml

@@ -8,7 +8,7 @@ buildvariants:
     tags: ["build", "debian", "x64"]
     run_on: debian12-small
     tasks:
-      - name: "build-php-openssl3"
+      - name: "build-all-php"
   - name: build-debian11
     display_name: "Build: Debian 11"
     tags: ["build", "debian", "x64", "pr", "tag"]
@@ -34,7 +34,7 @@ buildvariants:
     tags: ["build", "rhel", "x64", "pr", "tag"]
     run_on: rhel90-small
     tasks:
-      - name: "build-php-openssl3"
+      - name: "build-all-php"
   - name: build-rhel83-zseries
     display_name: "Build: RHEL 8.3 Zseries"
     tags: ["build", "rhel", "zseries", "tag"]
@@ -66,13 +66,13 @@ buildvariants:
     tags: ["build", "ubuntu", "x64", "pr", "tag"]
     run_on: ubuntu2204-small
     tasks:
-      - name: "build-php-openssl3"
+      - name: "build-all-php"
   - name: build-ubuntu2204-arm64
     display_name: "Build: Ubuntu 22.04 ARM64"
     tags: ["build", "ubuntu", "arm64", "tag"]
     run_on: ubuntu2204-arm64-small
     tasks:
-      - name: "build-php-openssl3"
+      - name: "build-all-php"
   - name: build-ubuntu2004
     display_name: "Build: Ubuntu 20.04 x64"
     tags: ["build", "ubuntu", "x64", "pr", "tag"]

.evergreen/config/generate-config.php

@@ -2,16 +2,11 @@
 <?php
 
 // Supported PHP versions. Add new versions to the beginning of the list
-$modernPhpVersions = [
+$supportedPhpVersions = [
     '8.3',
     '8.2',
     '8.1',
 ];
-$legacyPhpVersions = [
-    '8.0',
-    '7.4',
-];
-$supportedPhpVersions = array_merge($modernPhpVersions, $legacyPhpVersions);
 
 $latestPhpVersion = max($supportedPhpVersions);
 $lowestPhpVersion = min($supportedPhpVersions);
@@ -59,8 +54,7 @@
 $allFiles[] = generateConfigs('tasks', 'test', 'mongodbVersion', 'csfle.yml', $csfleServerVersions);
 
 // Test variants
-$allFiles[] = generateConfigs('buildvariants', 'test-variant', 'phpVersion', 'modern-php-full.yml', $modernPhpVersions);
-$allFiles[] = generateConfigs('buildvariants', 'test-variant', 'phpVersion', 'legacy-php-full.yml', $legacyPhpVersions);
+$allFiles[] = generateConfigs('buildvariants', 'test-variant', 'phpVersion', 'modern-php-full.yml', $supportedPhpVersions);
 // TODO: Re-enable when 1.20.0 is released
 // $allFiles[] = generateConfigs('buildvariants', 'test-variant', 'phpVersion', 'phpc.yml', [$latestPhpVersion]);
 // $allFiles[] = generateConfigs('buildvariants', 'test-variant', 'phpVersion', 'lowest.yml', [$lowestPhpVersion]);

.evergreen/config/generated/build/build-extension.yml

@@ -29,8 +29,6 @@ jobs:
         os:
           - "ubuntu-20.04"
         php-version:
-          - "7.4"
-          - "8.0"
           - "8.1"
           - "8.2"
           - "8.3"
@@ -41,23 +39,23 @@ jobs:
           - "server"
         include:
           - os: "ubuntu-20.04"
-            php-version: "8.0"
+            php-version: "8.1"
             mongodb-version: "6.0"
             topology: "replica_set"
           - os: "ubuntu-20.04"
-            php-version: "8.0"
+            php-version: "8.1"
             mongodb-version: "6.0"
             topology: "sharded_cluster"
           - os: "ubuntu-20.04"
-            php-version: "8.0"
+            php-version: "8.1"
             mongodb-version: "5.0"
             topology: "server"
           - os: "ubuntu-20.04"
-            php-version: "8.0"
+            php-version: "8.1"
             mongodb-version: "4.4"
             topology: "replica_set"
           - os: "ubuntu-20.04"
-            php-version: "8.0"
+            php-version: "8.1"
             mongodb-version: "4.4"
             topology: "sharded_cluster"