Merge c1bb2b0 into 27c4c90

.editorconfig

@@ -0,0 +1,21 @@
+# This file is for unifying the coding style for different editors and IDEs
+# editorconfig.org
+
+# WordPress Coding Standards
+# https://make.wordpress.org/core/handbook/coding-standards/
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = tab
+
+[{*.json,*.yml}]
+indent_style = space
+indent_size = 2
+
+[{*.txt,wp-config-sample.php}]
+end_of_line = crlf

.gitignore

@@ -1,2 +1,3 @@
-.idea/
-vendor
+.idea
+vendor
+build

.phpcs.xml.dist

@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<ruleset name="PSR-1 and PSR-2 code sniffs">
+	<description>Generally-applicable sniffs for modern PHP development</description>
+
+    <rule ref="PSR1">
+        <exclude name="PSR1.Files.SideEffects.FoundWithSymbols" />
+    </rule>
+    <rule ref="PSR2">
+        <exclude name="PSR2.Classes.PropertyDeclaration.Underscore" />
+    </rule>
+
+
+	<!-- Check all PHP files in directory tree by default. -->
+	<arg name="extensions" value="php"/>
+	<file>.</file>
+
+	<!-- Show progress and sniff codes in all reports -->
+	<arg value="ps"/>
+
+	<exclude-pattern>*/vendor/*</exclude-pattern>
+	<exclude-pattern>*/tests/*</exclude-pattern>
+	<exclude-pattern>*/languages/*</exclude-pattern>
+	<exclude-pattern>*/deprecatded.php</exclude-pattern>
+</ruleset>

.travis.yml

@@ -0,0 +1,26 @@
+language: php
+
+matrix:
+  include:
+    - php: 7.3
+    - php: 7.2
+    - php: 7.1
+    - php: 7.3
+      env: TRAVISCI=phpcs
+  allow_failures:
+    - php: 7.3
+      env: TRAVISCI=phpcs
+
+install:
+  - composer install --dev --no-interaction
+
+script:
+  - mkdir -p build/logs
+  - php vendor/bin/phpunit -c phpunit.xml.dist
+  - |
+    if [[ "$TRAVISCI" == "phpcs" ]] ; then
+      php vendor/bin/phpcs
+    fi
+
+after_success:
+  - travis_retry php vendor/bin/php-coveralls

README.md

@@ -1,5 +1,4 @@
-WP Session Manager
-==================
+# WP Session Manager [![Build Status][travis-image]][travis-url] [![Coverage Status][coveralls-image]][coveralls-url]
 
 Session management for WordPress.
 
@@ -57,6 +56,13 @@ None
 Changelog
 ---------
 
+**4.0.0**
+- New: Add an object cache based handler to leverage Redis or Memcached if available for faster queries.
+- Update: Bump minimum PHP requirements due to out-of-date version deprecations.
+- Fix: Correct a race condition where a session was created before the database table existed.
+- Fix: Correct a race condition where the `$wpdb` global is not yet set when a session is deleted from the database.
+- Fix: Remove unnecessary integer session ID from the stored data table.
+
 **3.0.4**
 - Update: Add support for the `wp_install` hook to create custom table immediately.
 
@@ -131,6 +137,9 @@ Changelog
 Upgrade Notice
 --------------
 
+**4.0**
+This version requires PHP 7.1 or higher.
+
 **3.0**
 This version requires PHP 5.6 or higher and uses Composer-powered autoloading to incorporate Sessionz for transparent session management.
 
@@ -145,12 +154,17 @@ First version
 Additional Information
 ----------------------
 
-**Contributors:** ericmann
-**Donate link:** https://paypal.me/eam
-**Tags:** session
-**Requires at least:** 4.7
-**Tested up to:** 4.9.2
-**Requires PHP:** 5.6
-**Stable tag:** 3.0.4
-**License:** GPLv2 or later
+**Contributors:** ericmann  
+**Donate link:** https://paypal.me/eam  
+**Tags:** session  
+**Requires at least:** 4.7  
+**Tested up to:** 5.0.2  
+**Requires PHP:** 7.1  
+**Stable tag:** 4.0.0  
+**License:** GPLv2 or later  
 **License URI:** http://www.gnu.org/licenses/gpl-2.0.html
+
+[travis-image]: https://travis-ci.org/ericmann/wp-session-manager.svg?branch=master
+[travis-url]: https://travis-ci.org/ericmann/wp-session-manager
+[coveralls-image]: https://coveralls.io/repos/github/ericmann/wp-session-manager/badge.svg?branch=master
+[coveralls-url]: https://coveralls.io/github/ericmann/wp-session-manager?branch=master

composer.json

@@ -1,7 +1,7 @@
 {
 	"name"             : "ericmann/wp-session-manager",
 	"description"      : "Prototype session management for WordPress.",
-	"version"          : "3.0.4",
+	"version"          : "4.0.0",
 	"type"             : "wordpress-plugin",
 	"keywords"         : ["session"],
 	"homepage"         : "https://github.com/ericmann/wp-session-manager",
@@ -15,17 +15,19 @@
 			"role"    : "Developer"
 		}
 	],
-	"require-dev"      : {},
+	"require-dev"      : {
+		"phpunit/phpunit": "^7.5",
+		"php-coveralls/php-coveralls": "^2.1",
+		"squizlabs/php_codesniffer": "^3.4"
+	},
 	"require"          : {
-		"php": ">=5.6",
+		"php": ">=7.1",
 		"ericmann/sessionz": "^0.3"
 	},
-	"platform": {
-		"php": "5.6"
-	},
 	"autoload": {
 		"classmap": [
 			"includes/SessionHandler.php",
+			"includes/CacheHandler.php",
 			"includes/DatabaseHandler.php",
 			"includes/Option.php",
 			"includes/OptionsHandler.php"