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本文档使用 PHP中文网手册 发布
(PHP 4 >= 4.0.2, PHP 5, PHP 7)
curl_init — 初始化一个cURL会话
$url
= NULL
] )初始化一个新的会话,返回一个cURL句柄,供 curl_setopt() , curl_exec() 和 curl_close() 函数使用。
url
如果提供了该参数, CURLOPT_URL
选项将会被设置成这个值。你也可以使用 curl_setopt() 函数手动地设置这个值。
如果成功,返回一个cURL句柄,出错返回 FALSE
。
Example #1 初始化一个新的cURL会话并获取一个网页
<?php
// 创建一个新cURL资源
$ch = curl_init ();
// 设置URL和相应的选项
curl_setopt ( $ch , CURLOPT_URL , "http://www.example.com/" );
curl_setopt ( $ch , CURLOPT_HEADER , 0 );
// 抓取URL并把它传递给浏览器
curl_exec ( $ch );
// 关闭cURL资源,并且释放系统资源
curl_close ( $ch );
?>
[#1] ageesen at videro dot com [2015-06-23 11:59:44]
Curl_init as well as CURLOPT_URL don't like to have static strings as parameter.
I came across this by accident and it took me very long to find out. curl_exec will throw error 3 (Malformed) and you tipple check the URL in it's variable only to find by trial and error that it's declaration is the culprit.
So never do this:
static $someurl = "http://www.example.com/interfacce.php";
....
$ch=curl_init($someurl);
....
$return=curl_exec($ch);
Cheers
[#2] Tugrul [2015-03-01 19:34:06]
<?php
function curl($url,$posts=""){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, $posts ? 0 :1;);
curl_setopt($ch, CURLOPT_POSTFIELDS,$posts);
$icerik = curl_exec($ch);
return $icerik;
curl_close($ch);
}
echo curl("http://gencbilgin.net/");
?>
Bu kodlar http://gencbilgin.net/curl-kutuphanesi-ve-kullanimi.html adresinden al?nm??t?r...
[#3] qrworld.net [2014-11-11 16:40:15]
Here you have a function that I use to get the content of a URL using cURL:
function getUrlContent($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
$data = curl_exec($ch);
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
return ($httpcode>=200 && $httpcode<300) ? $data : false;
}
The source comes from this website:
http://softontherocks.blogspot.com/2014/11/descargar-el-contenido-de-una-url.html
[#4] James P [2013-07-29 13:58:33]
Regarding spaces in URLs;
Please read
http://php.net/manual/en/function.urlencode.php
[#5] jharris at et2brut dot us [2010-12-03 14:20:37]
Just to clarify:
Spaces in the URL need to be replaced with a %20.
Spaces in the querystring need to be replaced with a +
[#6] rossixx at gmx dot net [2007-10-25 09:48:29]
e.g. you can check how many characters are on test_1.php
or you can it use for more, i have used this function for a nagios check.
<?PHP
echo "CURL - function test <br>" ;
if ($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 " ;
?>
[#7] ezyang at php dot net [2007-10-23 19:31:51]
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.
[#8] darkstar_ae at hotmail dot com [2006-05-24 20:20:36]
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.
[#9] Jos Enrique Serrano Exp?sito [2005-02-04 14:35:35]
<?php
vWritePageToFile( 'http://es.php.net', 'es.php.net.txt' );
?>
... And the text file stand in the server in the same folder that the script.
This is the function code.-
<?php
function vWritePageToFile( $sHTMLpage, $sTxtfile ) {
$sh = curl_init( $sHTMLpage );
$hFile = FOpen( $sTxtfile, 'w' );
curl_setopt( $sh, CURLOPT_FILE, $hFile );
curl_setopt( $sh, CURLOPT_HEADER, 0 );
curl_exec ( $sh );
$sAverageSpeedDownload = curl_getInfo( $sh, CURLINFO_SPEED_DOWNLOAD );
$sAverageSpeedUpload = curl_getInfo( $sh, CURLINFO_SPEED_UPLOAD );
echo '<pre>';
echo 'Average speed download == ' . $sAverageSpeedDownload . '<br>';
echo 'Average Speed upload == ' . $sAverageSpeedUpload . '<br>';
echo '<br>';
$aCURLinfo = curl_getInfo( $sh );
print_r( $aCURLinfo );
echo '</pre>';
curl_close( $sh );
FClose ( $hFile );
echo '(<b>See the file "'.$sTxtfile.'" in the same path of the hosting'.
' to where this script PHP</b>).<br>';
}
?>