composer require signalwire/signalwire

<?php

$client = new SignalWire\Relay\Client([
  "host" => "example.signalwire.com",
  "project" => "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
  "token" => "PTXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
]);

<?php

require 'path-to/vendor/autoload.php';

<?php

$loop = React\EventLoop\Factory::create();
// Setup your loop ...

$client = new SignalWire\Relay\Client([
  "host" => "example.signalwire.com",
  "project" => "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
  "token" => "PTXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
  "eventLoop" => $loop
]);

// connect() automatically run the EventLoop.
$client->connect();

<?php

$client = new SignalWire\Relay\Client([
  "host" => "example.signalwire.com",
  "project" => "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
  "token" => "PTXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
]);

$client->on('signalwire.ready', function($client) {

  $client->calling->newCall([
    'type' => 'phone',
    'from' => '+1XXXXXXXXXX',
    'to' => '+1YYYYYYYYYY'
  ])->then(
    function($call) {
      $call->on('answered', function($call) {
        // Call has been picked up!
      });
      $call->begin();
    },
    function ($error) {
      // An error occurred..
    }
  );

});

$client->connect();

<?php

$client = new SignalWire\Relay\Client([
  "host" => "example.signalwire.com",
  "project" => "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
  "token" => "PTXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
]);

<?php
// Make sure you have attached the listeners you need **before** connecting the client, or you might miss some events.
$client->connect();

<?php

$client->disconnect();

<?php

$client->on('signalwire.ready', function($client) {
  // Your client is ready!
})->on('signalwire.error', function(\Exception $error) {
  // Got an error...
});

<?php

$errorHandler = function($error) {
  // Log the error..
};

$client->on('signalwire.error', $errorHandler);

// .. later
$client->off('signalwire.error', $errorHandler);

<?php

$options = [
  'type' => 'phone',
  'from' => '+1XXXXXXXXXX',
  'to' => '+1YYYYYYYYYY'
];
$client->calling->newCall($options)->then(
  function($call) {
    // Use $call ...
  },
  function ($error) {
    // An error occurred..
  }
);

<?php

$client->calling->onInbound('office', function($call) {
  // Got an inbound call in the "office" context..
});

<?php

$call->on('answered', function($call) {
  // Call has been answered from the remote party!
})->on('ended', function($call) {
  // Call has ended.. cleanup something?
});

<?php

$callback = function($call) {
  // Call has ended.
};

$call->on('ended', $callback);

// .. later
$call->off('ended', $callback);

<?php

$options = [ 'type' => 'phone', 'from' => '+1XXXXXXXXXX', 'to' => '+1YYYYYYYYYY' ];
$client->calling->newCall($options)->then(
  function($call) {
    // Attach listeners you need on $call ...

    $call->begin();
  },
  function ($error) {
    // An error occurred creating the Call object.
  }
);

<?php

$client->calling->onInbound('pbx', function($call) {
  if (!$agent->isAvailable()) {
    $call->hangup()->then(
      function($result) {
        // Call hanged up successfully
      },
      function ($error) {
        // An error occurred hanging up the call.
      }
    );
  }
});

<?php

$client->calling->onInbound('office', function($call) {
  // Attach listeners you need on $call ...

  $call->answer()->then(
    function($result) {
      // Call picked up successfully.
    },
    function ($error) {
      // An error occurred answering the call.
    }
  );
});

<?php

$options = [ 'type' => 'phone', 'from' => '+1XXXXXXXXXX', 'to' => '+1YYYYYYYYYY' ];
$client->calling->newCall($options)->then(
  function($call) {
    $call->on('connect.connected', function($call) {
      // Your call has been connected to the first one that answered
    })->on('connect.failed', function($call) {
      // Your call failed to connect
    })->on('answered', function($call) {

      $call->connect(
        [ "type" => "phone", "to" => "+18991114444", "timeout" => 30 ],
        [ "type" => "phone", "to" => "+18991114445", "timeout" => 20 ]
      )->then($successCallback, $errorCallback);

    });

    $call->begin();
  },
  function ($error) {
    // An error occurred creating the Call object.
  }
);

<?php

$options = [ 'type' => 'phone', 'from' => '+1XXXXXXXXXX', 'to' => '+1YYYYYYYYYY' ];
$client->calling->newCall($options)->then(
  function($call) {
    $call->on('connect.connected', function($call) {
      // Your call has been connected to the first one that answered
    })->on('connect.failed', function($call) {
      // Your call failed to connect
    })->on('answered', function($call) {

      $call->connect(
        [ "type" => "phone", "to" => "+18991114443", "timeout" => 30 ],
        [
          [ "type" => "phone", "to" => "+18991114444", "timeout" => 30 ],
          [ "type" => "phone", "to" => "+18991114445", "timeout" => 20 ]
        ],
        [
          [ "type" => "phone", "to" => "+18991114446", "timeout" => 30 ],
          [ "type" => "phone", "to" => "+18991114447", "timeout" => 20 ]
        ]
      )->then($successCallback, $errorCallback);

    });

    $call->begin();
  },
  function ($error) {
    // An error occurred creating the Call object.
  }
);

<?php

$media = [
  "type" => "audio",
  "params" => [
    "url" => "https://example.domain.com/audio.mp3"
  ]
];
$call->playMedia($media)
  ->then(function ($action) {
    // Use $action to interact with the media..
  })
  ->otherwise($errorCallback);

<?php

$media = [
  "type" => "tts",
  "params" => [
    "text" => "Welcome to SignalWire!"
  ]
];
$call->playMedia($media)
  ->then(function ($action) {
    // Use $action to interact with the media..
  })
  ->otherwise($errorCallback);

<?php

$media = [
  "type" => "silence",
  "params" => [
    "duration" => 5
  ]
];
$call->playMedia($media)
  ->then(function ($action) {
    // Use $action to interact with the media..
  })
  ->otherwise($errorCallback);

<?php

$call->playMedia(
  [ "type" => "silence", "params" => [ "duration" => 2 ] ],
  [ "type" => "tts", "params" => [ "text" => "Listen this awesome file!" ] ],
  [ "type" => "audio", "params" => [ "url" => "https://example.domain.com/audio.mp3" ] ],
  [ "type" => "silence", "params" => [ "duration" => 5 ] ],
  [ "type" => "tts", "params" => [ "text" => "Did you like it?" ] ]
)->then(function ($action) {
  // Use $action to interact with the media..
})
->otherwise($errorCallback);

<?php

$call->playAudio("https://example.domain.com/audio.mp3")->then(
  function($action) {
    // Use $action to interact with the media..
  },
  function ($error) {
    // An error occurred playing audio..
  }
);

<?php

$params = ["text" => "Welcome to SignalWire!", "gender" => "male"];
$call->playTTS($params)->then(
  function($action) {
    // Use $action to interact with the media..
  },
  function ($error) {
    // An error occurred playing TTS..
  }
);

<?php

$call->playSilence(5)->then(
  function($action) {
    // Use $action to interact with the media..
  },
  function ($error) {
    // An error occurred playing silence..
  }
);

<?php

$call->on('collect', function($call, $result) {
  // Inspect $result->params to see the digits..
});

$collect = [ "initial_timeout" => 10, "digits" => [ "max" => 3, "digit_timeout" => 5 ] ];
$tts = [ "type" => "tts", "params" => [ "text" => "Listen this awesome file!" ] ];
$call->playMediaAndCollect($collect, $tts)->then(
  function($action) {
    // Use $action to interact with the media..
  },
  function ($error) {
    // An error occurred collecting..
  }
);

<?php

$call->on('collect', function($call, $result) {
  // Inspect $result->params to see the digits..
});

$collect = [ "initial_timeout" => 10, "digits" => [ "max" => 3, "digit_timeout" => 5 ] ];
$call->playAudioAndCollect($collect, 'https://example.domain.com/audio.mp3')->then(
  function($action) {
    // Use $action to interact with the media..
  },
  function ($error) {
    // An error occurred collecting..
  }
);

<?php

$call->on('collect', function($call, $result) {
  // Inspect $result->params to see the digits..
});

$collect = [ "initial_timeout" => 10, "digits" => [ "max" => 3, "digit_timeout" => 5 ] ];
$params = [ "text" => "Listen this awesome file!", "gender" => "male" ];
$call->playTTSAndCollect($collect, $params)->then(
  function($action) {
    // Use $action to interact with the media..
  },
  function ($error) {
    // An error occurred collecting..
  }
);

<?php

$call->on('collect', function($call, $result) {
  // Inspect $result->params to see the digits..
});

$collect = [ "initial_timeout" => 10, "digits" => [ "max" => 3, "digit_timeout" => 5 ] ];
$call->playSilenceAndCollect($collect, 5)->then(
  function($action) {
    // Use $action to interact with the media..
  },
  function ($error) {
    // An error occurred collecting..
  }
);

<?php

$params = [
  "audio" => [
    "stereo" => true,
    "direction" => "both"
  ]
];
$call->record($params)->then(
  function($action) {
    // Use $action to interact with the recording..
  },
  function ($error) {
    // An error occurred playing silence..
  }
);

<?php

$params = [
  "audio" => [
    "stereo" => true
  ]
];
$call->record($params)
  ->then(function($action) {
    if ($agent->isAvailable() === false) {
      $action->stop()->then($successCallback, $errorCallback);
    }
  })
  ->otherwise($errorCallback);
);

<?php

$media = [
  "type" => "audio",
  "params" => [
    "url" => "https://example.domain.com/audio.mp3"
  ]
];
$call->playMedia($media)
  ->then(function ($action) {
    if ($agent->isAvailable() === false) {
      $action->stop()->then($successCallback, $errorCallback);
    }
  })
  ->otherwise($errorCallback);

<?php

$call->playAudio("https://example.domain.com/audio.mp3")
  ->then(function ($action) {
    if ($agent->isAvailable() === false) {
      $action->stop()->then($successCallback, $errorCallback);
    }
  })
  ->otherwise($errorCallback);

<?php

$params = ["text" => "Hey There! Welcome to SignalWire."];
$call->playTTS($params)
  ->then(function ($action) {
    if ($agent->isAvailable() === false) {
      $action->stop()->then($successCallback, $errorCallback);
    }
  })
  ->otherwise($errorCallback);

<?php

$call->playSilence(10)
  ->then(function ($action) {
    if ($agent->isAvailable()) {
      $action->stop()->then($successCallback, $errorCallback);
    }
  })
  ->otherwise($errorCallback);

<?php

$collect = [ "initial_timeout" => 10, "digits" => [ "max" => 3, "digit_timeout" => 5 ] ];
$media = [
  "type" => "audio",
  "params" => [
    "url" => "https://example.domain.com/audio.mp3"
  ]
];
$call->playMediaAndCollect($collect, $media)
  ->then(function ($action) {
    if ($agent->isAvailable() === false) {
      $action->stop()->then($successCallback, $errorCallback);
    }
  })
  ->otherwise($errorCallback);

<?php

$collect = [ "initial_timeout" => 10, "digits" => [ "max" => 3, "digit_timeout" => 5 ] ];
$call->playAudioAndCollect($collect, "https://example.domain.com/audio.mp3")
  ->then(function ($action) {
    if ($agent->isAvailable() === false) {
      $action->stop()->then($successCallback, $errorCallback);
    }
  })
  ->otherwise($errorCallback);

<?php

$collect = [ "initial_timeout" => 10, "digits" => [ "max" => 3, "digit_timeout" => 5 ] ];
$params = ["text" => "Hey There! Welcome to SignalWire."];
$call->playTTSAndCollect($collect, $params)
  ->then(function ($action) {
    if ($agent->isAvailable() === false) {
      $action->stop()->then($successCallback, $errorCallback);
    }
  })
  ->otherwise($errorCallback);

<?php

$collect = [ "initial_timeout" => 10, "digits" => [ "max" => 3, "digit_timeout" => 5 ] ];
$call->playSilenceAndCollect($collect, 10)
  ->then(function ($action) {
    if ($agent->isAvailable()) {
      $action->stop()->then($successCallback, $errorCallback);
    }
  })
  ->otherwise($errorCallback);

<?php

$client = new SignalWire\Relay\Client([
  "host" => "example.signalwire.com",
  "project" => "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
  "token" => "PTXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
]);

$errorHandler = function($error) {
  echo "Error: " . $error->getMessage();
};

$inboundCallHandler = function($call) use ($errorHandler) {
  echo "\n New inbound call in context: '{$call->context}' \n";

  $call->on('play.stateChange', function($call, $params) {
    echo "\n CallId: {$call->id} - Play state changed to: {$params->state} \n";
  });

  $call->on('answered', function($call) use ($errorHandler) {
    $audioUrl = 'https://cdn.signalwire.com/default-music/welcome.mp3';
    $call->playAudio($audioUrl)->otherwise($errorHandler);
  });

  $call->answer()->otherwise($errorHandler);
};

$client->on('signalwire.ready', function($client) use ($inboundCallHandler, $errorHandler) {
  $client->calling->onInbound('office', $inboundCallHandler)
    ->then(function() {
      echo "\n You are listening for inbound calls from 'office' context.. \n";
    })
    ->otherwise($errorHandler);
});

$client->connect();

<?php

$client = new SignalWire\Relay\Client([
  "host" => "example.signalwire.com",
  "project" => "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
  "token" => "PTXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
]);

$errorHandler = function($error) {
  echo "Error: " . $error->getMessage();
};

$client->on('signalwire.ready', function($client) use ($errorHandler) {

  $params = [
    'type' => 'phone',
    'from' => '+1XXXXXXXXXX',
    'to' => '+1YYYYYYYYYY'
  ];
  $client->calling->newCall($params)->then(function($call) use ($errorHandler) {

    $call->on('answered', function($call) use ($errorHandler) {
      $collect = [ "initial_timeout" => 10, "digits" => [ "max" => 3, "digit_timeout" => 5 ] ];
      $params = [ "text" => "Welcome to SignalWire!" ];
      $call->playTTSAndCollect($collect, $params)->otherwise($errorHandler);
    });

    $call->on('collect', function($call, $result) {
      echo "Digits collected: " . $result->params->digits;
      print_r($result->params);
    });

    $call->begin()->otherwise($errorHandler);

  })->otherwise($errorHandler);

});

$client->connect();