/// TEXT MESSAGE
<?php
  $data = [
      'api_key' => '5pl19F24Sr0LLQO8BdUcqqOzoplQle',
      'sender' => 'Sender',
      'number' => 'receiver',
      'message' => 'Your message'
  ];
  $curl = curl_init();

  curl_setopt_array($curl, array(
    CURLOPT_URL => https://wa.mitraapi.in/send-message,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => '',
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 0,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_POSTFIELDS => json_encode($data),
    CURLOPT_HTTPHEADER => array(
      'Content-Type: application/json'
    ),
  ));
  $response = curl_exec($curl);
  curl_close($curl);
  echo $response;
?>



/// WITH MEDIA
<?php
  $data = [
      'api_key' => '5pl19F24Sr0LLQO8BdUcqqOzoplQle',
      'sender' => 'Sender',
      'number' => 'receiver',
      'message' => 'Your caption',
      'url' => 'Url Media'
      'type' => 'audio / video / image / pdf / xls /xlsx /doc /docx /zip'//Choose One
  ];
  $curl = curl_init();
  curl_setopt_array($curl, array(
    CURLOPT_URL => https://wa.mitraapi.in/send-media,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => '',
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 0,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_POSTFIELDS => json_encode($data),
    CURLOPT_HTTPHEADER => array(
      'Content-Type: application/json'
    ),
  ));
  $response = curl_exec($curl);
  curl_close($curl);
  echo $response;
?>



// WITH BUTTON
<?php
  $data = [
      'api_key' => '5pl19F24Sr0LLQO8BdUcqqOzoplQle',
      'sender' => 'Sender',
      'number' => 'receiver',
      'message' => 'Your message',
      'footer' => 'Your footer message',
      'image' => 'URL image ', //OPTIONAL
      'button1' => 'Button 1 ', //REQUIRED ( Button minimal 1 )
      'button2' => 'Button 2', //OPTIONAL
      'button3' => 'Button 3',//OPTIONAL
  ];
  $curl = curl_init();
  curl_setopt_array($curl, array(
    CURLOPT_URL => https://wa.mitraapi.in/send-button,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => '',
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 0,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_POSTFIELDS => json_encode($data),
    CURLOPT_HTTPHEADER => array(
      'Content-Type: application/json'
    ),
  ));
  $response = curl_exec($curl);
  curl_close($curl);
  echo $response;
?>