Installing Cakephp 3 Manually Without Composer

You need minimum requirements to install CakePHP 3 and CakePHP 3 zip ( fresh copy of Cakephp 3 ).

You can download CakePHP 3 zip from github.

Requirements

Server

1. HTTP Server. For example: Apache. Having mod_rewrite is preferred,but by no means required.
2. PHP 5.4.16 or greater.
3. mbstring extension
4. intl extension

Database :

1. MySQL (5.1.10 or greater)(Recommended)
2. PostgreSQL
3. Microsoft SQL Server (2008 or higher)
4. SQLite 3

Download zip file and unzip where you wanted to install it.

Database  Setting :

1. Open app.php file from config folder.

2. Find Datasources array in file.

'Datasources' => [
    'default' => [
        'className' => 'Cake\Database\Connection',
        'driver' => 'Cake\Database\Driver\Mysql',
        'persistent' => false,
        'host' => 'localhost',
        /**
         * CakePHP will use the default DB port based on the driver selected
         * MySQL on MAMP uses port 8889, MAMP users will want to uncomment
         * the following line and set the port accordingly
         */
        //'port' => 'non_standard_port_number',
        'username' => 'root',
        'password' => '',
        'database' => 'myDatabase',
        'encoding' => 'utf8',
        'timezone' => 'UTC',
        'flags' => [],
        'cacheMetadata' => true,
        'log' => false,

        /**
         * Set identifier quoting to true if you are using reserved words or
         * special characters in your table or column names. Enabling this
         * setting will result in queries built using the Query Builder having
         * identifiers quoted when creating SQL. It should be noted that this
         * decreases performance because each query needs to be traversed and
         * manipulated before being executed.
         */
        'quoteIdentifiers' => false,

        /**
         * During development, if using MySQL < 5.6, uncommenting the
         * following line could boost the speed at which schema metadata is
         * fetched from the database. It can also be set directly with the
         * mysql configuration directive 'innodb_stats_on_metadata = 0'
         * which is the recommended value in production environments
         */
        //'init' => ['SET GLOBAL innodb_stats_on_metadata = 0'],

        'url' => env('DATABASE_URL', null),
    ],

3. Change database name, username, password.

4. Run your project with http://localhost/your_project_folder/ url.

Enjoy!!