Problem with GET

hi,

i have a problem with GET.

the goal is getting some data from a sensor to a mysql database.
i have all the php working and the database set up.

all that the arduino has to do is go to 192.168.10.50/add.php?temp1=7&&moi1=7 with the sevens replaced with the sensor value.

the problem is that i can do a GET with no data: i just get an empty line, but when i do a one with data it doesn’t return anything.

All help is greatly appreciated.

#include <SPI.h>
#include <Ethernet.h>

byte mac[] = {  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //change to unique adress
IPAddress server (192,168,10,50); // change to ip server
IPAddress ip(192,168,10,61);

EthernetClient client;

void setup()
{
  Serial.begin( 9600 );
    
    // start the Ethernet connection:
  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    // no point in carrying on, so do nothing forevermore:
    // try to congifure using IP address instead of DHCP:
    Ethernet.begin(mac, ip);
  }
  // give the Ethernet shield a second to initialize:
  delay(1000);
  Serial.println("connecting...");

  // if you get a connection, report back via serial:
  if (client.connect(server, 80)) {
    Serial.println("connected");
    // Make a HTTP request:
    client.println("GET /add.php?");
    client.println("Host: 192.168.10.50");
    client.println("Connection: close");
    client.println();
  } 
  else {
    // kf you didn't get a connection to the server:
    Serial.println("connection failed");
  }
}

void loop()
{  
    if (!client.available())
  {
    
    Serial.println("try");
    
    client.print("GET /add.php?");
    client.print("temp1=");
    client.print("4");
    client.print("&&");
    client.print("moi1=");
    client.print("3");
    client.println(" HTTP/1.1");
    client.println( "Host: 192.168.10.50" ); //change to ip server
    client.println( "Content-Type: application/x-www-form-urlencoded" );
    client.println( "Connection: close" );
    client.println();
    client.println();
    client.stop();
  }
  delay( 1000 );
}