### Install PHP Rules Engine with Composer

Source: https://github.com/kennyth01/php-rules-engine/blob/main/README.md

This command installs the PHP Rules Engine library using Composer, the dependency manager for PHP. Ensure Composer is installed and accessible in your environment.

```Bash
composer require kennyth01/php-rules-engine

```

--------------------------------

### PHP Rules Engine Output Example

Source: https://github.com/kennyth01/php-rules-engine/blob/main/README.md

This is an example of the output generated by the PHP Rules Engine after evaluating the 'player fouled out' rule. It includes the event type, parameters, facts used, and a human-readable interpretation of the evaluated conditions.

```PHP
[
    'type' => 'fouledOut',
    'params' => [
        'message' => 'Player has fouled out!'
    ],
    'facts' => [
        'personalFoulCount' => 6,
        'gameDuration' => 40

    ],
    'interpretation' => '((gameDuration is equal to 40 AND personalFoulCount is >= 5) OR (gameDuration is equal to 48 AND NOT (personalFoulCount is less than 6)))
]

```

--------------------------------

### Run PHP Unit Tests

Source: https://github.com/kennyth01/php-rules-engine/blob/main/README.md

This command executes the unit tests for the PHP Rules Engine using PHPUnit. Ensure PHPUnit is installed and configured in your project.

```Bash
./vendor/bin/phpunit tests

```

--------------------------------

### Evaluate Player Fouled Out Rule in PHP

Source: https://github.com/kennyth01/php-rules-engine/blob/main/README.md

This PHP code demonstrates how to use the rules engine to evaluate a player's foul status. It loads a rule from a JSON file, adds facts about the game and player, sets the target rule, and then evaluates the result.

```PHP
$engine = new Engine();
$rule = json_decode(file_get_contents('rule.player.isFouledOut.json'), true);

$engine->addRule(new Rule($rule));
$engine->addFact('personalFoulCount', 6);
$engine->addFact('gameDuration', 40);

$engine->setTargetRule('rule.player.isFouledOut');

$result = $engine->evaluate();
print_r($result);

```

--------------------------------

### Define Player Fouled Out Rule in JSON

Source: https://github.com/kennyth01/php-rules-engine/blob/main/README.md

This JSON structure defines a rule for determining if a basketball player has fouled out. It includes conditions based on game duration and personal foul count, using 'any' and 'all' logical operators.

```JSON
{
   "name":"rule.player.isFouledOut",
   "conditions": {
     "any": [
       {
         "all": [
           {
             "fact": "gameDuration",
             "operator": "equal",
             "value": 40
           },
           {
             "fact": "personalFoulCount",
             "operator": "greaterThanInclusive",
             "value": 5
           }
         ],
         "name": "short foul limit"
       },
       {
         "all": [
           {
             "fact": "gameDuration",
             "operator": "equal",
             "value": 48
           },
           {
             "not": {
               "fact": "personalFoulCount",
               "operator": "lessThan",
               "value": 6
             }
           }
         ],
         "name": "long foul limit"
       }
     ]
   },
   "event": {
     "type": "fouledOut",
     "params": {
       "message": "Player has fouled out!"
     }
   },
   "failureEvent": {
      "type": "fouledOut",
      "params": {
         "message": "Player has not fouled out"
      }
    }
 }

```

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