Евгений Хронос

$line = preg_replace('/.+@/', '', $line);
$line = preg_replace('/:.+/', '', $line);

<?php
  if( $curl = curl_init() ) {
    curl_setopt($curl, CURLOPT_URL, 'http://mysite.ru/receiver.php');
    curl_setopt($curl, CURLOPT_RETURNTRANSFER,true);
    curl_setopt($curl, CURLOPT_POST, true);
    curl_setopt($curl, CURLOPT_POSTFIELDS, "a=4&b=7");
    $out = curl_exec($curl);
    echo $out;
    curl_close($curl);
  }
?>