PHP Slack Webhook Function Using CURL

gistfile1.txt

function sendWebhook($message) {

    $webhook_url = "";

    // slack webhook test
    $data = "payload=" . json_encode(array(
        "text" =>  $message
    ));

    $ch = curl_init($webhook_url);
    curl_setopt_array($ch, array(
        CURLOPT_POST => 1,
        CURLOPT_POSTFIELDS => $data
    ));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $result = curl_exec($ch);
    curl_close($ch);

  }

  sendWebhook($message_str); // call function with string message

Note that this requires CURL to work on your machine/server