cURL download progress in PHP

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I'm pretty new to cURL so I've been struggling with this one for hours. I'm trying to download the source of a website in an iframe using cURL and while it's loading to show how much of it is loaded. So far I have successfully downloaded the source without showing the loading progress. Can you explain how to show the download progress? Without cURL I would read the file byte by byte and divide the total amount of downloaded bytes with the total size of the file. How can this be done in cURL since it reads the source as a whole? (at least I think that this is the only way, not sure) Here's what I've got so far:

/* Download source */
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $adress);  
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, 0); 
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
$html = curl_exec($ch);
curl_close($ch);

Answers

What you need is

<?php
ob_start();

echo "<pre>";
echo "Loading ...";

ob_flush();
flush();

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://.com");
//curl_setopt($ch, CURLOPT_BUFFERSIZE,128);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_PROGRESSFUNCTION, 'progress');
curl_setopt($ch, CURLOPT_NOPROGRESS, false); // needed to make progress function work
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
$html = curl_exec($ch);
curl_close($ch);


function progress($resource,$download_size, $downloaded, $upload_size, $uploaded)
{
    if($download_size > 0)
         echo $downloaded / $download_size  * 100;
    ob_flush();
    flush();
    sleep(1); // just to see effect
}

echo "Done";
ob_flush();
flush();

?>

Sunday, December 25, 2022

jms82032-12ea8690d7cd

There doesn't seem to be a CURLOPT_PROGRESSFUNCTION before php 5.3.

Take a look at http://cvs.php.net/viewvc.cgi/php-src/ext/curl/interface.c?view=log and you will find two entries - [DOC] MFH: #41712, implement progress callback. One for the php5.3 and one for the php6 branch.

edit: With php 5.2.x you should be able to set a stream_notification_callback

function foo() {
  $args = func_get_args();
  echo join(', ', $args), "n";
}

$ctx = stream_context_create(null, array('notification' =>'foo'));
$fpIn = fopen('http://php.net/', 'rb', false, $ctx);
file_put_contents('localfile.txt', $fpIn);

Thursday, December 15, 2022

mohamed_amin

cURL is not able to verify the authenticity of the certificate being used, because the certificate for the signing authority cannot be found in the local database.

This might be symptomatic of a self signed certificate being used.

What you should do is add the certificate for the signing authority to /etc/ssl/certs/ca-certificates.crt.

What you can do is use curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);, which will disable the check that is failing.

You really should use the first option.

Wednesday, August 31, 2022

nc3b

you should check examples from here http://php.net/manual/en/curl.examples.php

Bellow is the code for you case,

$url = "http://build:f9280f75396f83a0@mobile-jenkins.domain.com:8080/job/android-test/buildWithParameters";     
$data = "POST_RESULTS=true&RUN_ID=".$testrun_id."&CHECK_NAME=SampleAutomatedPlan";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);  
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); 

// $output contains the output string
$output = curl_exec($ch);

// close curl resource to free up system resources
curl_close($ch);

Saturday, October 15, 2022

le_sang

This seemed to work (unexpectedly!)

echo "wget '$feedURL'n";
$execute = "wget -O ".$filePath." '$feedURL'n";
$systemOutput = shell_exec($execute);
$systemOutput = str_replace( "n", "nt", $systemOutput);
echo "t$systemOutputn";

Monday, December 26, 2022

luis.espinal

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cURL download progress in PHP

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