phpday 2025 - Call For Papers

cURL 函数

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用户贡献的备注 10 notes

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27
Mr.KTO
17 years ago
Don't foget to curl_close($ch); Even if curl_errno($ch) != 0

Because if you don't - on Windows this will produce windows-error-report (Program terminated unexpectedly)
up
6
helmizz at yahoo dot com
10 years ago
This is sample script to use curl, Just input curl_setopt,
exp :
curlsetop[0] ==> name : CURLOPT_URL ; value : http://amazon.com
curlsetop[1] ==> name : CURLOPT_RETURNTRANSFER ; value : true
curlsetop[2] ==> name : CURLOPT_FOLLOWLOCATION ; value : true

You can add form input.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="">
<meta name="Author" content="Helmi Anwar">
<meta name="Keywords" content="">
<meta name="Description" content="">
</head>

<body>

<form method="post" action="">
<table>
<tr class="rowid_add">
<td>curl_setopt [0]</td>
<td>Name : <input type="text" size="50" name="setopt_name[]"></td>
<td>Value :<input type="text" size="50" name="setopt_value[]"></td>
</tr>
<tr class="rowid_add">
<td>curl_setopt [0]</td>
<td>Name : <input type="text" size="50" name="setopt_name[]"></td>
<td>Value :<input type="text" size="50" name="setopt_value[]"></td>
</tr>
<tr class="rowid_add">
<td>curl_setopt [0]</td>
<td>Name : <input type="text" size="50" name="setopt_name[]"></td>
<td>Value :<input type="text" size="50" name="setopt_value[]"></td>
</tr>
<tr>
<td><input type="submit" name="submit_yes" value="EXECUTE"></td>
</tr>
</table>
</form>


<?php

function curl_test($setopt_content)
{
$ch = curl_init();
curl_setopt_array($ch, $setopt_content);
$result_data = curl_exec($ch);
curl_close($ch);
return
$result_data;
}

if(
$_REQUEST['submit_yes']=="EXECUTE")
{

foreach (
$_REQUEST['setopt_name'] as $k => $index_content)
{
$value_content=$_REQUEST['setopt_value'][$k];
$index_content =strtoupper($index_content);
eval(
'$index_content = '.$index_content.';');
//echo ($index_content);
if($index_content!='')
{
if(
strtoupper($value_content)=='TRUE')
{
$setopt_content[$index_content]=TRUE;}
elseif(
strtoupper($value_content)=='FALSE')
{
$setopt_content[$index_content]=FALSE;}
else
{
$setopt_content[$index_content]=$value_content;}
}
}

$info=curl_test($setopt_content);

}

?>
<textarea name="result" rows="25" cols="100"><?php echo htmlspecialchars($info);?></textarea>
</body>
</html>
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2
Anonymous
3 years ago
Note, if you will ever need to get/set unique handle for Curl-object, you might need to use CURL_PRIVATE property for each instace
https://www.php.net/manual/en/function.curl-setopt.php
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3
simon [at] vhostdirect [dot] co [dot] uk
20 years ago
It took me quite some to to figure out how to get Curl (with SSL), OpenSSL and PHP to play nicely together.

After reinstalling MS-VC7 and compiling OpenSSL to finally realise this was'nt nesscary.

If your like me and like *Nix systems more than Windows then you'll most probly have similar problems.

I came across this, on a simple google with the right keywords.

http://www.tonyspencer.com/journal/00000037.htm

I read thru that and found my mistake.

Its just a small list of notes, I found them to be the best I've found on the subject and the most simplist.

Dont forget to add a simple line like this into your scripts to get them working on Win32.

<?php
if($WINDIR) curl_setopt($curl, CURLOPT_CAINFO, "c:\\windows\\ca-bundle.crt");
?>

Last note: ca-bundle.crt file is located in the Curl download. I stored mine in the windows directory and apache/php can access it fine.

All the best and I hope this helps.

Simon Lightfoot
vHost Direct Limited
up
3
mikeb[at]xamo[dot]com
20 years ago
A note of warning for PHP 5 users: if you try to fetch the CURLINFO_CONTENT_TYPE using curl_getinfo when there is a connect error, you will core dump PHP. I have informed the Curl team about this, so it will hopefully be fixed soon. Just make sure you check for an error before you look for this data.
up
1
killermonk at REMOVE dot killermonk dot com
17 years ago
For anyone trying to use cURL to submit to an ASP/ASPX page that uses an image as the submit button.

Make sure that you have 'button_name.x' and 'button_name.y' in the post fields. PHP names these fields 'button_name_x' and 'button_name_y', while ASP uses a dot.

Also, as noted above, be sure to include the '__VIEWSTATE' input field in your post request.
up
0
Peter X.
16 years ago
Although it has been noted that cURL outperforms both file_get_contents and fopen when it comes to getting a file over a HTTP link, the disadvantage of cURL is that it has no way of only reading a part of a page at a time.

For example, the following code is likely to generate a memory limit error:

<?php
$ch
= curl_init("http://www.example.com/reallybigfile.tar.gz");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
$output = curl_exec($ch);

$fh = fopen("out.tar.gz", 'w');
fwrite($fh, $output);
fclose($fh);
?>

While this, on the other hand, wouldn't

<?php
$hostfile
= fopen("http://www.example.com/reallybigfile.tar.gz", 'r');
$fh = fopen("out.tar.gz", 'w');

while (!
feof($hostfile)) {
$output = fread($hostfile, 8192);
fwrite($fh, $output);
}

fclose($hostfile);
fclose($fh);
?>
up
-3
alidrus at langkah dot com
20 years ago
In recent versions of php, CURLOPT_MUTE has (probably) been deprecated. Any attempt of using curl_setopt() to set CURLOPT_MUTE will give you a warning like this:

PHP Notice: Use of undefined constant CURLOPT_MUTE - assumed 'CURLOPT_MUTE' in ....

If you wish tu silence the curl output, use the following instead:

<?php
curl_setopt
($ch, CURLOPT_RETURNTRANSFER, true);
?>

And then,

<?php
$curl_output
=curl_exec($ch);
?>

The output of the curl operation will be stored as a string in $curl_output while the operation remains totally silent.
up
-4
richardkmiller AT gmail
18 years ago
Beware of any extra spaces in the URL. A trailing space in the URL caused my script to fail with the message "empty reply from server".
up
-3
ciaoandriana8 at gmail dot com
3 years ago
This is sample script to use curl, Just input curl_setopt,
exp :
curlsetop[0] ==> name : CURLOPT_URL ; value : https://amzn.to/3njlWW6
curlsetop[1] ==> name : CURLOPT_RETURNTRANSFER ; value : true
curlsetop[2] ==> name : CURLOPT_FOLLOWLOCATION ; value : true

You can add form input.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="">
<meta name="Author" content="Helmi Anwar">
<meta name="Keywords" content="">
<meta name="Description" content="">
</head>

<body>

<form method="post" action="">
<table>
<tr class="rowid_add">
<td>curl_setopt [0]</td>
<td>Name : <input type="text" size="50" name="setopt_name[]"></td>
<td>Value :<input type="text" size="50" name="setopt_value[]"></td>
</tr>
<tr class="rowid_add">
<td>curl_setopt [0]</td>
<td>Name : <input type="text" size="50" name="setopt_name[]"></td>
<td>Value :<input type="text" size="50" name="setopt_value[]"></td>
</tr>
<tr class="rowid_add">
<td>curl_setopt [0]</td>
<td>Name : <input type="text" size="50" name="setopt_name[]"></td>
<td>Value :<input type="text" size="50" name="setopt_value[]"></td>
</tr>
<tr>
<td><input type="submit" name="submit_yes" value="EXECUTE"></td>
</tr>
</table>
</form>

<?php

function curl_test($setopt_content)
{
$ch = curl_init();
curl_setopt_array($ch, $setopt_content);
$result_data = curl_exec($ch);
curl_close($ch);
return
$result_data;
}

if(
$_REQUEST['submit_yes']=="EXECUTE")
{

foreach (
$_REQUEST['setopt_name'] as $k => $index_content)
{
$value_content=$_REQUEST['setopt_value'][$k];
$index_content =strtoupper($index_content);
eval(
'$index_content = '.$index_content.';');
//echo ($index_content);
if($index_content!='')
{
if(
strtoupper($value_content)=='TRUE')
{
$setopt_content[$index_content]=TRUE;}
elseif(
strtoupper($value_content)=='FALSE')
{
$setopt_content[$index_content]=FALSE;}
else
{
$setopt_content[$index_content]=$value_content;}
}
}

$info=curl_test($setopt_content);

}

?>
<textarea name="result" rows="25" cols="100"><?php echo htmlspecialchars($info);?></textarea>
</body>
</html>
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