Reakce na odpověď

Zkusil jsem to s 'php://input' a chybu mi to nevyhazuje, příklad:
index.php

<?php
$options = array(
    'http' => array(
        'header'  => "Content-type: application/x-www-form-urlencoded\r\n",
        'method'  => 'POST',
        'content' => "18.6|76.9|-77|"
    )
);
$context  = stream_context_create($options);
$result = file_get_contents("http://localhost/delimiter/index2.php", false, $context);
var_dump($result);

index2.php

<?php
error_reporting(E_ALL);
ini_set("display_errors", 1);
$data = file_get_contents('php://input');
$array = explode("|", $data);
file_put_contents('output.txt', $data);
file_put_contents('teplota_venku', $array[0]);
file_put_contents('vlhkost_venku', $array[1]);
file_put_contents('signal_venku', $array[2]);

PHP - Delimiter