<form action="" method="POST">
<textarea name="prueba"></textarea><br>
<input type="submit" name="e" />
</form>

<?php
ob_start();
echo str_pad('',4096);
function flushi(){
    ob_end_flush();
    ob_flush();
    flush();
    ob_start();
}

if(isset($_POST['prueba'])) { // if isset $_POST

    $a           = explode("\n", $_POST['prueba']);
    $extensiones = count($a);
    $entidad     = 129; // en el cs, "ippstat d <ext> | grep domain" y sale
    $nodo        = 110; // bdg
    $mla         = 3; // ni idea
    $exten       = array();
    $ext         = array();
    $sterm       = '';

    foreach($a as $e) if(!empty($e)) $lin[] = explode("\t", trim($e));
    //var_dump($lin);
    for($i=0;$i<count($lin);$i++) {
        $ext[$i]['ext'] = $lin[$i][0];
        $ext[$i]['nombre'] = $lin[$i][4];
        $ext[$i]['ga'] = $lin[$i][7];
    }

    function crear() {
        global $ext;
        global $nodo;
        $str = '';
        $c = count($ext);
        $teclas = array(1,73,74);

        for($x=0;$x<$c;$x++) {
            for($z=0;$z<$c;$z++) {
                if($z!=$x) {
                    $str .= 'SET Subscriber_Keyboard   "'.$nodo.'": "'.$ext[$x]['ext'].'": "'.$z.'"<br>';
                    $nom = ucfirst(strtolower($ext[$x]['nombre']));
                    $str .= '{<br>';
                    $str .= ' Type = "Station_Supervision",<br>';
                    $str .= ' Directory_Number = "'.$ext[$z]['ext'].'",<br>';
                    $str .= ' Ringing_Mode = "No_Ring",<br>';
                    $str .= ' Key_NOE_Mnemonic1 = "'.$nom.'"<br>';
                    $str .= '}<br>';
                }
            }
        }
        return $str;
    }

    foreach ($ext as $extn) {
        $s = crear();
        echo $s;
        flushi();
    }

} // fin if isset $_POST
?>