Web студия "GrandView"

Описание

resource curl_init ( [string url] )

curl_init() создает новый сеанс CURL и возвращает дескриптор, который используется с функциями curl_setopt(), curl_exec() и curl_close(). Если передан необязательный аргумент url, опция CURLOPT_URL будет автоматически установлена в значение этого аргумента. Если этот аргумент не передан, необходимо использовать функцию curl_setopt().
Пример 1. Инициализация сеанса CURL и загрузка web-страницы

<?php // инициализация сеанса $ch = curl_init(); // установка URL и других необходимых параметров curl_setopt($ch, CURLOPT_URL, "http://www.example.com/"); curl_setopt($ch, CURLOPT_HEADER, 0); // загрузка страницы и выдача её браузеру curl_exec($ch); // завершение сеанса и освобождение ресурсов curl_close($ch); ?>

См. также описание функций curl_close() и curl_setopt()

add a note User Contributed Notes
curl_init

rossixx at gmx dot net
25-Oct-2007 09:48


e.g. you can check how many characters are on test_1.php



or you can it use for more, i have used this function for a nagios check.



<?PHP

echo "CURL - function test <br>" ;

if ($load == 1){

function webcheck ($url) {

        $ch = curl_init ($url) ;

        curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1) ;

        $res = curl_exec ($ch) ;

        curl_close ($ch) ;

        return ($res) ;

}

echo "url = $url <br>" ;



$erg = webcheck("my_page.php/test_1.php") ;

$zahl = strlen ($erg) ;

echo "length = $zahl " ;

?>

ezyang at php dot net
23-Oct-2007 07:31


curl_init() has undefined behavior if you pass 'false' to it and can crash when you try to copy the resulting handle using curl_copy_handle(). Keep this in mind if you create a wrapper object for CURL.

darkstar_ae at hotmail dot com
24-May-2006 08:20


For some reason on some webservers it may not be able to understand what cURL is doing. If you're getting unexpected results (like getting no output when the URL is valid) while using curl_init(). Add a trailing slash '/' after the url if you haven't done so already.

ru dot dy at gmx dot net
02-Sep-2005 03:10


The curl-functions can be used to check the ICQ-webstatus from an icq-number, to get the status as a string rather than as one of those standard images provided from ICQ. This can also be used to place your own Image instead of simple text, to show ones online-status, of course if activated in the options. The idea behind is to get just the text from the apache-site that would lead us to the picture  that shows the online status. curl does not do any redirect, as long as we don't set CURLOPT_FOLLOWLOCATION. This is nice because the image can change, as long as the paths and filenames (contained in the site-text) don't. The different states are stored in a short array of unsigned crc-values.



<?php



class ICQ {

   

 var $crc = array('253889085' => 'offline', '1177883536' => 'online', '1182613274' => 'hidden'); 

//CRCs valid as long as the redirect-page does not change

   

 function getCrc($url) {

   $ch = curl_init();

   curl_setopt ($ch, CURLOPT_URL, $url);

   curl_setopt ($ch, CURLOPT_HEADER, 0);

   ob_start();

   curl_exec ($ch);

   curl_close ($ch);

   $cache = ob_get_contents();



   ob_end_clean();

   //print($cache);

   return (string)abs(crc32($cache));

 }

   

 function status($number) {

   $check = $this->getCrc( 'http://status.icq.com/online.gif?icq=' . $number . '&img=5');

   if (in_array($check, array_keys($this->crc))) {

     return $this->crc[$check];

   }

   return false;

 }

     

}

?>



Usage:



<?php

 $icq = new ICQ();

 print($icq->status('123456789'));

?>



Outputs 'online', 'offline' or 'hidden'.

Jos