# Pulling data from / to 2 different php pages?

**URL:** <https://forum.arduino.cc/t/pulling-data-from-to-2-different-php-pages/76229>\
**Category:** Programming\
**Created:** [October 28, 2011, 3:56am UTC](https://forum.arduino.cc/t/pulling-data-from-to-2-different-php-pages/76229 "2011-10-28T03:56:25Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [October 28, 2011, 3:56am UTC](https://forum.arduino.cc/t/pulling-data-from-to-2-different-php-pages/76229/1 "2011-10-28T03:56:25Z")

</div>

```cpp
#if defined(ARDUINO) && ARDUINO > 18
#include <SPI.h>
#endif
#include <Ethernet.h>
#include <EthernetDHCP.h>

// MAC Address
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };

const char* ip_to_str(const uint8_t*);
const char* hostName();
int setHostName(const char* newHostName);
// Initialize the Ethernet server library
//Server server(8080);

int localstatus = 7; //status

int gatestatus = 4; //old status
int s;

byte serverip[] = { 142, 55, 49, 114 };
Client client(serverip, 80); //apache web server running on port 80

void setup()
{
  Serial.begin(9600);
  pinMode (2,INPUT); //test pin
  Serial.println("Attempting to obtain a DHCP lease...");
  
 
  EthernetDHCP.begin(mac);

  // Since we're here, it means that we now have a DHCP lease, so we print
  // out some information.
  const byte* ipAddr = EthernetDHCP.ipAddress();
  const byte* gatewayAddr = EthernetDHCP.gatewayIpAddress();
  const byte* dnsAddr = EthernetDHCP.dnsIpAddress();
  
  Serial.println("A DHCP lease has been obtained.");

  Serial.print("My IP address is ");
  Serial.println(ip_to_str(ipAddr));
  
  Serial.print("Gateway IP address is ");
  Serial.println(ip_to_str(gatewayAddr));
  
  Serial.print("DNS IP address is ");
  Serial.println(ip_to_str(dnsAddr));
  
  // Start the server
   Serial.println("Starting Server.");
   //server.begin();
}

void loop()
{

  EthernetDHCP.maintain();
Serial.println("Comparing Server Status"); 
gatestatus = readvalues(); 
Serial.println();
Serial.println();
Serial.println();
Serial.println("Gatestatus:");
Serial.println(gatestatus);
Serial.println();
Serial.println();
Serial.println("Localstatus:");
Serial.println(localstatus);
Serial.println();
Serial.println();

 if (localstatus!= gatestatus){
   Serial.println("Statuses are not equal");
         send_to_server();
    }
    
      Serial.println("Gate Status is");
      Serial.println(gatestatus);
      
      
      if (digitalRead(2) == HIGH)
      {
       // Serial.println("status 1");
        localstatus = 1;
      }
      if (digitalRead(2) == LOW)
      {
      //Serial.println("Status 0");
        localstatus = 0;
      }
      
    //)
    // give the web browser time to receive the data
    delay(500);
    // close the connection:
    client.stop();
  }

// Just a utility function to nicely format an IP address.
const char* ip_to_str(const uint8_t* ipAddr)
{
  static char buf[16];
  sprintf(buf, "%d.%d.%d.%d\0", ipAddr[0], ipAddr[1], ipAddr[2], ipAddr[3]);
  return buf;
}

int readvalues()
{
    Serial.println("In Read Values");
    while(1)
    if (client.connect()) {
    Serial.println("Readvalues client connected");
    client.println("GET /headgateget.php");
    client.print( millis() );          // prevent caching, like justjed said a post before
    client.println("HTTP/1.0");                // no need for 1.1
    client.println("Host: cs14.sheridanc.on.ca");
    // client.println("Connection: close");
    client.println();
   //delay(7);
    while (client.connected()){
      if (client.available()) {
      Serial.println("client is avaliable printing page");
      char c = client.read();
      Serial.println("parsed page, C=");
      Serial.println(c);
      delay(100);
      s = c - '0';
      Serial.println("S is equal to:");
      Serial.println(s);
      return s;
      }
    }
    }
    
    
    if (!client.connected()) {
    Serial.println();
    Serial.println("disconnecting.");
    client.stop();
    
    
    }
}

void send_to_server()
{
  
  while(1){
  Serial.println("sending to server function");
if (client.connect()) {
   
          Serial.println("Set Server connected");
          
          client.print("GET /headgatetestset.php?Status=");     // Path only, not the complete URI   
          client.print(localstatus);
          client.print("&");
          client.print( millis() );          // prevent caching, like justjed said a post before
          client.println(" HTTP/1.0");                // no need for 1.1
          client.println("Host: cs14.sheridanc.on.ca");
          client.println("Connection: close");
          client.println();
          Serial.println("posted to db");
          return;

                              }
  }
}

```

I have a question about using client.connected in two different functions. I have one function "readvalues()" and that connects and pulls the data from the server just fine, and soon after the program is going to run another function "send\_to\_server()" when it runs this the statement "if client.connect()" is never true, did I break something to do with connecting in the last function?

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<div class="post-metadata">

**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [May 5, 2021, 7:37pm UTC](https://forum.arduino.cc/t/pulling-data-from-to-2-different-php-pages/76229/2 "2021-05-05T19:37:44Z")

</div>

Closed on May 5, 2021, 7:37pm UTC