I have a problem in sending and receiving data between php and perl socket:

-Problem: +php can not send all byte data to perl socket +Perl socket can not receiving all data from php . Here code php:

function save(){ 
unset($_SESSION['info']); 
unset($_SESSION['data']); 
global $config,$ip; 
$start=$_POST['config']; 
 $fp = fsockopen($_SESSION['ip'], $config['port'], $errno, $errstr, 30); 
            if(!$fp) 
                                { 
                                   $_SESSION['info']="Not connect "; 
                                transfer("Not   connect".$ip, "index.php?com=server&act=info"); 
                                } 
                                else 
                                { 
                                $_SESSION['info']="Save config - ".$ip; 

                                 fwrite($fp,$start); 


                                transfer("Sending data to ".$ip, "index.php?com=server&act=info");    
                                } 
 }

Here code perl socket:

#!/usr/bin/perl 
use strict; 
use warnings; 
use Carp; 
use POSIX qw( setsid ); 

use IO::Socket; 

$| = 1; 

my $socket = new IO::Socket::INET ( 
                              LocalHost => '192.168.150.3', 
                              LocalPort => '5000', 
                              Proto => 'tcp', 
                              Listen => 5, 
                              Reuse => 1 
                           ); 

die "Coudn't open socket" unless $socket; 

print "\nTCPServer Waiting for client on port 5000"; 
my $client_socket = ""; 

     while ($client_socket = $socket->accept()) 
     { 


    my $recieved_data =" "; 
    my $send_data=" "; 

    my $peer_address = $client_socket->peerhost(); 
    my $peer_port = $client_socket->peerport(); 

    print "\n I got a connection from ( $peer_address , $peer_port ) "; 

             print "\n SEND( TYPE q or Q to Quit):"; 
                $client_socket->recv($recieved_data,20000); 
#while (defined($recieved_data = <$client_socket>)) { 

                if ( $recieved_data eq 'q' or $recieved_data eq 'Q' ) 
                { 
                        close $client_socket; 
                        last; 
                } 
elsif ($recieved_data eq 'start' or $recieved_data eq 'START' ) 
               { 
                    $send_data = `/etc/init.d/squid start`; 
               } 
                elsif ($recieved_data eq 'restart' or $recieved_data eq 'RESTART' ) 
               { 

                $send_data =  `/etc/init.d/squid restart`; 
               } 
              elsif ($recieved_data eq 'stop' or $recieved_data eq 'STOP' ) 
              { 
            $send_data =  `/etc/init.d/squid stop`; 
              } 
              elsif ($recieved_data eq 'hostname' or $recieved_data eq 'HOSTNAME' ) 
              { 
                    $send_data= `hostname`; 
              } 
              elsif ($recieved_data eq 'view-config' or $recieved_data eq 'VIEW-CONFIG' ) 
  { 

                 $send_data = `cat /etc/squid/squid.conf` ; 

              } 

                else 

                { 

 #           print  $recieved_data; 

                open OUTPUT_FILE, '> /root/data' or die("can not open file"); 

        print OUTPUT_FILE $recieved_data; 
 close OUTPUT_FILE 
                } 
 #} 
                if ($send_data eq 'q' or $send_data eq 'Q') 
                { 

                    $client_socket->send ($send_data); 
                    close $client_socket; 
                    last; 
                    } 
 else 
                { 
                    $client_socket->send($send_data); 
                } 

    }