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Asked: 2026-05-27T16:00:22+00:00

i wanted move to OOP, and trying to understand it. So far i made

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i wanted move to OOP, and trying to understand it. So far i made my first class. Here is the Code. (The problem is with the function sCURL() and returning values and access it right.

    class CURL {

    public $url; 
    private $header = false; // DISPLAY HEADERS (FALSE OR TRUE)
    private $follow = true; // FOLLOW REDIRCETS (FALSE OR TRUE)
    private $useragent = "Mozilla/4.0 (compatible; MSIE 6.0;Windows NT 5.1)"; // SET USER AGENT e.g. "Mozilla/4.0 (compatible; MSIE 6.0;Windows NT 5.1)"
    private $referer = "http://www.google.com"; // SET REFERER e.g. http://www.google.com
    private $ssl = false; // If set false (it accpets any ssl) should false
    private $ctimeout = 5; // Timeout for connect in SECs when curl does next url
    private $timeout = 60; // Timeout of retriving page in SECs when curl does next url


    public function setHeader($header) {
        $this->header = $header;
    }
    public function setFollow($follow) {
        $this->follow = $follow;
    }
    public function setUseragent($useragent) {
        $this->useragent = $useragent;
    }
    public function setReferer($referer) {
        $this->referer = $referer;
    }
    public function setSsl($ssl) {
        $this->ssl = $ssl;
    }
    public function setCtimeout($ctimeout) {
        $this->ctimeout = $ctimeout;
    }
    public function setTimeout($timeout) {
        $this->timeout = $timeout;
    }
    public function __construct($url) {
        $this->url = $url;
    }

    public function sCURL() {

        $ch = curl_init();

        curl_setopt($ch, CURLOPT_URL, $this->url);
        curl_setopt($ch, CURLOPT_HEADER, $this->header);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, $this->follow);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        curl_setopt($ch, CURLOPT_USERAGENT, $this->useragent);
        curl_setopt($ch, CURLOPT_REFERER, $this->referer);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $this->ssl);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $this->ctimeout);
        curl_setopt($ch, CURLOPT_TIMEOUT, $this->timeout);

        $data = curl_exec($ch);
        curl_close($ch);

        return $data;
    }
}

and this are the results:

object(CURL)#1 (9) {
  ["url"]=>
  string(23) "http://www.facebook.com"
  ["header:private"]=>
  bool(false)
  ["follow:private"]=>
  bool(true)
  ["useragent:private"]=>
  string(49) "Mozilla/4.0 (compatible; MSIE 6.0;Windows NT 5.1)"
  ["referer:private"]=>
  string(21) "http://www.google.com"
  ["ssl:private"]=>
  bool(false)
  ["ctimeout:private"]=>
  int(5)
  ["timeout:private"]=>
  int(60)
  ["data"]=>
  NULL
}

as you can see “data” = NULL.

than i replaced this peace of code

    $data = curl_exec($ch);
    curl_close($ch);

    return $data;

with this:

    $this->data = curl_exec($ch);
    curl_close($ch);

    return $this->data;

and now this are the results (Working):

object(CURL)#1 (9) {
  ["url"]=>
  string(23) "http://www.facebook.com"
  ["header:private"]=>
  bool(false)
  ["follow:private"]=>
  bool(true)
  ["useragent:private"]=>
  string(49) "Mozilla/4.0 (compatible; MSIE 6.0;Windows NT 5.1)"
  ["referer:private"]=>
  string(21) "http://www.google.com"
  ["ssl:private"]=>
  bool(false)
  ["ctimeout:private"]=>
  int(5)
  ["timeout:private"]=>
  int(60)
  ["data"]=>
  string(33320) "<!DOCTYPE html>.........STRIPPED OUTBUT THATS WHAT I WANTED........"

Ok so this is how i call the class

$data1 = new Curl("http://www.facebook.com");
$data1->sCURL();

var_dump($data1);

this gives me the above results. Here is my problem i want access only the “DATA” thing.

$data1 = new Curl("http://www.facebook.com");
$data1->sCURL();

var_dump($data1['data']);

if try to access key ‘data’ i get this error

Fatal error: Cannot use object of type CURL as array in * on line 10

So, how i can access the data, direct (the array $data1[‘data’], and also would you change something from my class to make it better? And for my understanding, why did that return $data; in the first example class not worked. I googled and googled but dont found an answer. Sorry, i just started using OOP before i made a huge list of functions.

UPDATE when i set 

curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);

To false

curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);

i now can access the data

$data1[‘data’] , BUT the problem somehow still remains, $data1[‘data’] gets displayed above at the end i get this:

Fatal error: Cannot use object of type CURL as array in * on line

im just curious, why i cant access if its set true, if somebody can explain that i would be happy.

Thank you for your time.

and

MERRY XMAS TO ALL 🙂

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1 Answer

  1. Editorial Team

    In your example:

    $data1 = new Curl("http://www.facebook.com");
$data1->sCURL();

var_dump($data1['data']);

    $data1 is an object, you cannot use an object as an array(apart if you define a specific interface).

    What you can do would be something like

    $data1 = new Curl("http://www.facebook.com");
$data1->sCURL();

var_dump($data1->data);

    Also it’s not generally a good practice to leave public the properties, a better approach is to make the property private and create some methods to access it, it’s call getter and setter example: 

    class CURL {
    private $data;

    ...
    public function getData() {
       return $this->data;
    }

    public function setDate($data) {
       $this->data = $data;
    }
}

    Using getter and setter you have a better control over the data, to be noted that in your example the setter won’t be needed.

    Last point, it’s generally a good practice to define al the property, I think you forgot the declaration of the data property in your class.

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