已解决问题
在HTML文档中，使用PHP如何截取一段有效的HTML字符串？求个思路
例如在Blog中的列表，那段文字其它是从正文中截取出来的，但这是段文字需要包含HTML标签，但不能有未配对的标签，当截取到指定长度字符串后如果其没有开头的匹配标签则去掉开头的匹配标签，如：$html = &abcdefghi&;echo func($html, 2); //输出abecho func($html, 4); //输出abcdecho func($html, 5); //输出abcde求实现思路！
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最满意答案
几种方法大体思路是先解析出标签。通过正则表达式的方法。simple_html_dom。自己用C写扩展。&?phprequire_once('simple_html_dom.php');class&grabber{private&$url,$public&function&__construct($url&=&null){$this-&url&=&$}public&function&setUrl($url){$this-&url&=&$}public&function&getDOM(){$this-&html&=&file_get_html($this-&url);}function&retrieveTitle(){return&array_shift($this-&html-&find('title'))-&}function&retrieveDescription(){return&array_shift($this-&html-&find('meta[name=&description&]'))-&}function&retrieveImgs(){$images&=&array();foreach($this-&html-&find('img[src]')&as&$img){$images[]&=&$img-&}return&$}}$grabber&=&new&grabber('http://movies.yahoo.com/news/movies.ap.org/merry-xmas-hollywood-boxoffice-record-falls-ap');$grabber-&getDOM();var_dump($grabber-&retrieveTitle());var_dump($grabber-&retrieveDescription());var_dump($grabber-&retrieveImgs());
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server is okPHP 将整个文件读入一个字符串
在线手册：&
file_get_contents
file_get_contents & 将整个文件读入一个字符串
string file_get_contents
( string $filename
[, bool $use_include_path = false
[, resource $context
[, int $offset = -1
[, int $maxlen
file_get_contents()
函数是用来将文件的内容读入到一个字符串中的首选方法。如果操作系统支持还会使用内存映射技术来增强性能。
如果要打开有特殊字符的 URL （比如说有空格），就需要使用
进行 URL 编码。
要读取的文件的名称。
use_include_path
As of PHP 5 the FILE_USE_INCLUDE_PATH can be used
to trigger
A valid context resource created with
如果你不需要自定义 context，可以用 NULL 来忽略。
The offset where the reading starts on the original stream.
Seeking (offset) is not supported with remote files.
Attempting to seek on non-local files may work with small offsets, but this
is unpredictable because it works on the buffered stream.
Maximum length of data read. The default is to read until end
of file is reached. Note that this parameter is applied to the
stream processed by the filters.
The function returns the read data 或者在失败时返回 FALSE.
错误／异常
An E_WARNING level error is generated if either maxlength
is less than zero, or if seeking to the specified offset in the stream fails.
Example #1 Get and output the source of the homepage of a website
&?php$homepage&=&file_get_contents('http://www.example.com/');echo&$homepage;?&
Example #2 Searching within the include_path
&?php//&&=&PHP&5$file&=&file_get_contents('./people.txt',&true);//&&&PHP&5$file&=&file_get_contents('./people.txt',&FILE_USE_INCLUDE_PATH);?&
Example #3 Reading a section of a file
&?php//&Read&14&characters&starting&from&the&21st&character$section&=&file_get_contents('./people.txt',&NULL,&NULL,&20,&14);var_dump($section);?&
以上例程的输出类似于：
string(14) &lle Bjori Ro&
Example #4 Using stream contexts
&?php//&Create&a&stream$opts&=&array(&&'http'=&array(&&&&'method'=&"GET",&&&&'header'=&"Accept-language:&en\r\n"&.&&&&&&&&&&&&&&"Cookie:&foo=bar\r\n"&&));$context&=&stream_context_create($opts);//&Open&the&file&using&the&HTTP&headers&set&above$file&=&file_get_contents('http://www.example.com/',&false,&$context);?&
Note: 此函数可安全用于二进制对象。
Tip如已启用，在此函数中， URL 可作为文件名。关于如何指定文件名详见
wapper 的不同功能请参见 ，注意其用法及其可提供的预定义变量。
Warning使用 SSL 时，Microsoft IIS
会违反协议不发送close_notify标记就关闭连接。PHP 会在到达数据尾端时报告“SSL: Fatal Protocol Error”。
要解决此问题， 应设定为降低级别至不包含警告。
PHP 4.3.7 及更高版本可以在使用 https:// 包装器打开流时检测出有问题的 IIS 服务器软件 并抑制警告。在使用
创建 ssl:// 套接字时, 开发者需检测并抑制此警告。
- 把整个文件读入一个数组中
- 从文件指针中读取一行
- 读取文件（可安全用于二进制文件）
- 输出一个文件
- 将一个字符串写入文件
- Reads remainder of a stream into a string
- Creates a stream context
在线手册：&
If&you&are&using&file_get_contents()&function&to&retrieve&HTTP&url&and&printing&HTTP&content,&you&can&also&send&original&content-type&header&using&$http_response_header&and&header()&&?phpforeach&($http_response_header&as&$value)&{&&&&if&(preg_match('/^Content-Type:/i',&$value))&{&&&&&&&&//&Successful&match&&&&&&&&header($value,false);&&&&}}?&
Reading&all&script&input&is&simple&task&with&file_get_contents,&but&it&depends&on&what&SAPI&is&being&used.Only&in&Apache,&not&in&CLI:&?php&&$input&=&file_get_contents("php://input");?&Only&in&CLI,&not&in&Apache:&?php&&$input&=&file_get_contents("php://stdin");?&In&Apache&php://stdin&will&be&empty,&in&CLI&php://input&will&be&empyt&instead&with&no&error&indication.
Function&to&get&enum&values&for&table&field.
&?php
function&enumValues($filename)&{
&&&&
&&&&$fGetContents&=&file_get_contents($filename);
&&&&$e&=&explode("\n",&$fGetContents);
&&&&
&&&&for&($i&=&0;&$i&&&count($e);&$i++)&{
&&&&&&&&$arr[]&=&$e[$i]&."','";
&&&&}
&&&&
&&&&$str&=&implode('',&$arr);
&&&&$var&=&"'"&.&$str;
&&&&$var&=&substr($var,&0,&-2);
&&&&return&$var;
}
?&
Insert&into&file&like&this
Value1
Value2
Value3
Negative&offsets&don't&work&as&you&might&expect&(like&in&http://php.net/substr&for&example)So&?php&echo&file_get_contents(__FILE__,&false,&null,&-10)&?&does&the&same&as&?php&echo&file_get_contents(__FILE__,&false,&null,&0)&?&To&get&the&last&10&characters&of&a&file,&you&need&to&use&?php&echo&file_get_contents&(__FILE__,&false,&null,&(filesize&(__FILE__)&-&10))&?&
This is an easy way to trigger scripts by listening for POSTs. I simply point a service's webhook url to the script, which file_get_contents(&php://input&), cast to an array, and then simplexml_load_string() to parse it and use one of the keys' data as the parameter for my script.
For&those&who&use&file_get_contents&for&JSON&or&other&RESTful&services&-&like&my&architecture&did&for&a&big&site&-&this&will&probably&help&a&lot.We&struggled&with&having&the&site&using&get&urls&that&would&go&through&our&load&balancer&instead&of&hitting&the&local&server.What&we&did&was&load&this&function&through&a&local&url&and&set&the&Host:&header&for&our&virtualhost&entries&on&the&site&we&wanted&to&laod.This&code&solved&our&issue:&?php//set&the&header&context&stream&for&virtualhost&lookup$context&=&stream_context_create(array('http'&=&&array('header'&=&&'Host:&www.VIRTUALHOSTDOMAIN.com')));//use&a&localhost&url&or&alternatively&127.0.0.1&ip$url&=&'http://localhost/rest-service/?get-user&id=######';//fetch&the&data&through&webserver&using&the&Host&http&header&we&set$data&=&json_decode(file_get_contents($url,&0,&$context));//verify&you&have&your&datavar_dump($data);?&
file_get_contents can do a POST, create a context for that first:
$opts = array('http' =&
=& 'POST',
=& &Content-Type: text/xml\r\n&.
&Authorization: Basic &.base64_encode(&$https_user:$https_password&).&\r\n&,
'content' =& $body,
'timeout' =& 60
= stream_context_create($opts);
$url = 'https://'.$https_
$result = file_get_contents($url, false, $context, -1, 40000);
For those having this problem when trying to get_file_contents(url):
Warning: file_get_contents(url): failed to open stream: HTTP request failed!
in xx on line yy
If you are behind a SonicWall firewall, read this:
https://bugs.php.net/bug.php?id=40197
(this little line: uncheck a box in the internal settings of the firewall labled &Enforce Host Tag Search with for CFS&)
Apparently by default SonicWall blocks any HTTP request without a &Host:& header, which is the case in the PHP get_file_contents(url) implementation.
This is why, if you try to get the same URL from the same machine with cURL our wget, it works.
I hope this will be useful to someone, it took me hours to find out :)
I experienced a problem in using hostnames instead straight IP with some server destinations.
If i use file_get_contents(&www.jbossServer.example/app1&,...)
i will get an 'Invalid hostname' from the server i'm calling.
This is because file_get_contents probably will rewrite your request after getting the IP, obtaining the same thing as :
file_get_contents(&xxx.yyy.www.zzz/app1&,...)
And you know that many servers will deny you access if you go through IP addressing in the request.
With cURL this problem doesn't exists. It resolves the hostname leaving the request as you set it, so the server is not rude in response.
If&you&want&to&insert&tracking-scripts&into&your&shopping-system,&some&scripts&doesn't&support&intelligent&detection&of&HTTPS,&so&i&made&a&script&i&put&on&the&server&that&rewrites&'http'&to&'https'&in&the&script,&assuming&everything&has&to&be&UTF-8&encoded&(as&a&fallback&it&makes&a&redirect).
It&is&important&that&the&HTTPS-source&DOES&exist!
function&file_get_contents_utf8($fn)&{
&&&&$opts&=&array(
&&&&&&&&'http'&=&&array(
&&&&&&&&&&&&'method'=&"GET",
&&&&&&&&&&&&'header'=&"Content-Type:&text/&charset=utf-8"
&&&&&&&&)
&&&&);
&&&&$context&=&stream_context_create($opts);
&&&&$result&=&@file_get_contents($fn,false,$context);
&&&&return&$result;
}
header("Content-Type:&text/&charset=utf-8");
$tPath&=&"URL&YOU&WANT&TO&MODIFY";
$result&=&file_get_contents_utf8("http://".$tPath);
if(&$result&==&false){
&&&&header("Location:&https://".$tPath);&//&fallback
&&&&exit();
}
else{
&&&&echo&mb_ereg_replace("http","https",$result);
}
?&
If you are getting a failed to open stream message on your windows machine check your hosts file.
must be in it and the IP6 line must be commented
At least as of PHP 5.3, file_get_contents no longer uses memory mapping.
See comments on this bug report:
http://bugs.php.net/bug.php?id=52802
here&is&another&(maybe&the&easiest)&way&of&doing&POST&http&requests&from&php&using&its&built-in&capabilities.&feel&free&to&add&the&headers&you&need&(notably&the&Host:&header)&to&further&customize&the&request.note:&this&method&does&not&allow&file&uploads.&if&you&want&to&upload&a&file&with&your&request&you&will&need&to&modify&the&context&parameters&to&provide&multipart/form-data&encoding&(check&out&http://www.php.net/manual/en/context.http.php&)&and&build&the&$data_url&following&the&guidelines&on&http://www.w3.org/TR/html401/interact/forms.html#h-17.13.4.2&?php/**make&an&http&POST&request&and&return&the&response&content&and&headers@param&string&$url&&&&url&of&the&requested&script@param&array&$data&&&&hash&array&of&request&variables@return&returns&a&hash&array&with&response&content&and&headers&in&the&following&form:&&&&array&('content'=&'&html&&/html&'&&&&&&&&,&'headers'=&array&('HTTP/1.1&200&OK',&'Connection:&close',&...)&&&&&&&&)*/function&http_post&($url,&$data){&&&&$data_url&=&http_build_query&($data);&&&&$data_len&=&strlen&($data_url);&&&&return&array&('content'=&file_get_contents&($url,&false,&stream_context_create&(array&('http'=&array&('method'=&'POST'&&&&&&&&&&&&,&'header'=&"Connection:&close\r\nContent-Length:&$data_len\r\n"&&&&&&&&&&&&,&'content'=&$data_url&&&&&&&&&&&&))))&&&&&&&&,&'headers'=&$http_response_header&&&&&&&&);}?&
read&text&per&line&and&convert&to&arrayfor&example,&the&input&file&is&input.txtthe&input&file&containt&text&belowonetwothreefourfive++++++++++++++++++++++++++read&value&per&line&?php$data&=&file_get_contents("input.txt");&//read&the&file$convert&=&explode("\n",&$data);&//create&array&separate&by&new&linefor&($i=0;$i&count($convert);$i++)&&{&&&&echo&$convert[$i].',&';&//write&value&by&index}?&++++++++++++++++++++++++++Output&:one,&two,&three,&four,&five,
When using a URI with a login / password (HTTP or FTP, for an example), you may need to urlencode the password if it contains special characters.
Do not urlencode the whole URI, just the password.
Don't do :
urlencode('ftp://login:mdp%?special@host/dir/file')
'ftp://login:' . urlencode('mdp%?special') . '@host/dir/file';
Might seem obvious, but is worth noting.
If&working&file&is&bigger&than&64kb&and&you&getting&deadlock.&Your&buffer&is&overflow.&Here&are&two&way&how&to&avoid&that.
1)&use&temporary&file&for&descriptor
&?php
&&$descriptorspec&=&array(
&&&0&=&&array("file",&"/tmp/ens/a.ens","r"),&&//&stdin&is&a&pipe&that&the&child&will&read&from
&&&1&=&&array("file",&"/tmp/ens/a.html","w"),&&//&stdout&is&a&pipe&that&the&child&will&write&to
&&&2&=&&array("file",&"/tmp/ens/error-output.txt",&"a")&//&stderr&is&a&file&to&write&to
&&);
?&
2)&inline&read&using&stream_set_blocking.&PHP&doesn't&proper&handle&last&part&of&file.
&?php
&&$READ_LEN&=&64*1024;
&&$MAX_BUF_LEN&=&2*$READ_LEN;
&&$url&=&"http://some.domain.com:5984/".$db."/".$member."/contents";
&&$src&=&fopen($url,"r");
&&$cwd&=&'/tmp';
&&$cmd['enscript']&=&"/usr/bin/enscript";
&&$cmd['enscript-options']&=&"&-q&--language=html&--color&-Ejcl&-o&-";
&&$descriptorspec&=&array(
&&&&0&=&&array("pipe",&"r"),&&//&stdin&is&a&pipe&that&the&child&will&read&from
&&&&1&=&&array("pipe",&"w")&&&//&stdout&is&a&pipe&that&the&child&will&write&to
&&);
&&$ph=proc_open($cmd['enscript']."&".$cmd['enscript-options'],$descriptorspec,$pipes,$cwd);
&&stream_set_blocking($src,0);
&&stream_set_blocking($pipes[0],0);
&&stream_set_blocking($pipes[1],0);
&&$CMD_OUT_OPEN&=&TRUE;&$k&=&0;
&&while&(!feof($pipes[1])&||&!feof($src)&||&$k&&&0)&{
&&&&if&(!feof($src)&&&&$k+$READ_LEN&&=&$MAX_BUF_LEN)&{
&&&&&&$input&.=&fread($src,$READ_LEN);
&&&&&&$k&=&strlen($input);
&&&&}
&&&&if&($k&&&0)&{
&&&&&&$l&=&fwrite($pipes[0],$input);
&&&&&&$k&-=&$l;
&&&&&&$input&=&substr($input,$l);
&&&&}
&&&&if&($CMD_OUT_OPEN&&&&$k&==&0&&&&feof($src))&{
&&&&&&fclose($pipes[0]);
&&&&&&$CMD_OUT_OPEN&=&FALSE;
&&&&}
&&&&$output&=&fread($pipes[1],$READ_LEN);
&&&&$outputn&=&str_replace("&H1&(stdin)&/H1&","",$output);
&&&&&&&&echo&$outputn;
&&}
&&fclose($pipes[1]);
&&$return_value&=&proc_close($ph);
?&
The offset is 0 based.
Setting it to 1 will skip the first character of the stream.
If&your&file_get_contents&freezes&during&several&seconds,&here&is&maybe&your&answer:
Beware&that&the&default&keepalive&timeout&of&Apache&2.0&httpd&is&15&seconds.&This&is&true&for&HTTP/1.1&connections,&which&is&not&the&default&behavior&of&file_get_contents&but&you&can&force&it,&especially&if&you&are&trying&to&act&as&a&web&browser.&I&don't&know&if&this&is&also&the&case&for&HTTP/1.0&connections.
Forcing&the&server&to&close&the&connection&would&make&you&gain&those&15&seconds&in&your&script:
&?php
$context&=&stream_context_create(array('http'&=&&array('header'=&'Connection:&close')));
$content&=&file_get_contents("http://www.example.com/test.html");
?&
Another&way&of&resolving&slowness&issues&is&to&use&cURL&or&fsockopen.&Bear&in&mind&that&contrary&to&the&behavior&of&web&browsers,&file_get_contents&doesn't&return&the&result&when&the&web&page&is&fully&downloaded&(i.e.&HTTP&payload&length&=&value&of&the&response&HTTP&"Content-Length"&header)&but&when&the&TCP&connection&is&closed.
I&hope&this&behavior&will&change&in&future&releases&of&PHP.
This&has&been&experienced&with&PHP&5.3.3.
If&you&want&to&check&if&the&function&returned&error,&in&case&of&a&HTTP&request&an,&it's&not&sufficient&to&test&it&against&false.&It&may&happen&the&return&for&that&HTTP&request&was&empty.&In&this&case&it's&better&to&check&if&the&return&value&is&a&bool.
&?php
$result=file_get_contents("http://www.example.com");
if&($result&===&false)
{
&&&&//&treat&error
}&else&{
&&&&//&handle&good&case
}
?&
[EDIT&BY&thiago:&Has&enhacements&from&an&anonymous&user]
Sometimes you might get an error opening an http URL.
even though you have set &allow_url_fopen = On& in php.ini
For me the the solution was to also set &user_agent& to something.
On Centos 5, and maybe other Red Hat based systems, any attempt to use file_get_contents to access a URL on an http
port other than 80 (e.g. &http://www.example.com:8040/page&) may fail with a permissions violation (error 13) unless the box you are running php on has its seLinux set to 'permissive' not 'enforcing' . Otherwise the request doesn't even get out of the box, i.e. the permissions violation is generated locally by seLinux.
In&my&dev&environment&with&a&relatively&low-speed&drive&(standard&SATA&7200RPM)&reading&a&25MB&zip&file&in&10&times...
$data&=&`cat&/tmp/test.zip`;
//&1.05&seconds
$fh&=&fopen('/tmp/test.zip',&'r');
$data&=&fread($fh,&filesize('/tmp/test.zip'));
fclose($fh);
//&1.31&seconds
$data&=&file_get_contents('/tmp/test.zip');
//&1.33&seconds
However,&on&a&21k&text&file&running&100&iterations...
$data&=&`cat&/tmp/test.txt`;
//&1.98&seconds
$fh&=&fopen('/tmp/test.txt',&'r');
$data&=&fread($fh,&filesize('/tmp/test.txt'));
fclose($fh);
//&0.00082&seconds
$data&=&file_get_contents('/tmp/test.txt');
//&0.0069&seconds
Despite&the&comment&about&file_get_contents&being&faster&do&to&memory&mapping,&file_get_contents&is&slowest&in&both&of&the&above&examples.&If&you&need&the&best&performance&out&of&your&production&box,&you&might&want&to&throw&together&a&script&to&check&out&which&method&is&fastest&for&what&size&files&on&that&particular&machine,&then&optimize&your&code&to&check&the&file&size&and&use&the&appropriate&function&for&it.
A&UTF-8&issue&I've&encountered&is&that&of&reading&a&URL&with&a&non-UTF-8&encoding&that&is&later&displayed&improperly&since&file_get_contents()&related&to&it&as&UTF-8.&This&small&function&should&show&you&how&to&address&this&issue:
&?php
function&file_get_contents_utf8($fn)&{
&&&&&$content&=&file_get_contents($fn);
&&&&&&return&mb_convert_encoding($content,&'UTF-8',&
&&&&&&&&&&mb_detect_encoding($content,&'UTF-8,&ISO-8859-1',&true));
}
?&
if $filename has a relative path file_get_contents returns the uninterpreted sourcecode of the php-file with all comments etc.
I don't know whether this is a bug or intented or caused by server-configuration.
I think this behaviour should be included in the description of the function.
Setting&the&timeout&properly&without&messing&with&ini&values:
&?php
$ctx&=&stream_context_create(array(
&&&&'http'&=&&array(
&&&&&&&&'timeout'&=&&1
&&&&&&&&)
&&&&)
);
file_get_contents("http://example.com/",&0,&$ctx);
?&
This&is&a&nice&and&simple&substitute&to&get_file_contents()&using&curl,&it&returns&FALSE&if&$contents&is&empty.&?phpfunction&curl_get_file_contents($URL)&&&&{&&&&&&&&$c&=&curl_init();&&&&&&&&curl_setopt($c,&CURLOPT_RETURNTRANSFER,&1);&&&&&&&&curl_setopt($c,&CURLOPT_URL,&$URL);&&&&&&&&$contents&=&curl_exec($c);&&&&&&&&curl_close($c);&&&&&&&&if&($contents)&return&$contents;&&&&&&&&&&&&else&return&FALSE;&&&&}?&Hope&this&help,&if&there&is&something&wrong&or&something&you&don't&understand&let&me&know&:)
I&decided&to&make&a&similar&function&to&this,&called&file_post_contents,&it&uses&POST&instead&of&GET&to&call,&kinda&handy...&?phpfunction&file_post_contents($url,$headers=false)&{&&&&$url&=&parse_url($url);&&&&if&(!isset($url['port']))&{&&&&&&if&($url['scheme']&==&'http')&{&$url['port']=80;&}&&&&&&elseif&($url['scheme']&==&'https')&{&$url['port']=443;&}&&&&}&&&&$url['query']=isset($url['query'])?$url['query']:'';&&&&$url['protocol']=$url['scheme'].'://';&&&&$eol="\r\n";&&&&$headers&=&&"POST&".$url['protocol'].$url['host'].$url['path']."&HTTP/1.0".$eol.&&&&&&&&&&&&&&&&&"Host:&".$url['host'].$eol.&&&&&&&&&&&&&&&&&"Referer:&".$url['protocol'].$url['host'].$url['path'].$eol.&&&&&&&&&&&&&&&&&"Content-Type:&application/x-www-form-urlencoded".$eol.&&&&&&&&&&&&&&&&&"Content-Length:&".strlen($url['query']).$eol.&&&&&&&&&&&&&&&&$eol.$url['query'];&&&&$fp&=&fsockopen($url['host'],&$url['port'],&$errno,&$errstr,&30);&&&&&if($fp)&{&&&&&&fputs($fp,&$headers);&&&&&&$result&=&'';&&&&&&while(!feof($fp))&{&$result&.=&fgets($fp,&128);&}&&&&&&fclose($fp);&&&&&&if&(!$headers)&{&&&&&&&&//removes&headers&&&&&&&&$pattern="/^.*\r\n\r\n/s";&&&&&&&&$result=preg_replace($pattern,'',$result);&&&&&&}&&&&&&return&$result;&&&&}}?&
Seems file looks for the file inside the current working (executing) directory before looking in the include path, even with the FILE_USE_INCLUDE_PATH flag specified.
Same behavior as include actually.
By the way I feel the doc is not entirely clear on the exact order of inclusion (see include). It seems to say the include_path is the first location to be searched, but I have come across at least one case where the directory containing the file including was actually the first to be searched.
If you're having problems with binary and hex data:
I had a problem when trying to read information from a ttf, which is primarily hex data. A binary-safe file read automatically replaces byte values with their corresponding ASCII characters, so I thought that I could use the binary string when I needed readable ASCII strings, and bin2hex() when I needed hex strings.
However, this became a problem when I tried to pass those ASCII strings into other functions (namely gd functions). var_dump showed that a 5-character string contained 10 characters, but they weren't visible. A binary-to-&normal& string conversion function didn't seem to exist and I didn't want to have to convert every single character in hex using chr().
I used unpack with &c*& as the format flag to see what was going on, and found that every other character was null data (ordinal 0). To solve it, I just did
str_replace(chr(0), &&, $string);
which did the trick.
This took forever to figure out so I hope this helps people reading from hex data!
you'll find the http response headers in: $http_response_header
[Editors note: As of PHP 5.2.1 you can specify `timeout` context option and pass the context to file_get_contents()]
The only way I could get get_file_contents() to wait for a very slow http request was to set the socket timeout as follows.
ini_set('default_socket_timeout', 120);
$a = file_get_contents(&http://abcxyz.com&);
Other times like execution time and input time had no effect.
Use&the&previous&example&if&you&want&to&request&the&server&for&a&special&part&of&the&content,&IF&and&only&if&the&server&accepts&the&method.
If&you&want&a&simple&example&to&ask&the&server&for&all&the&content,&but&only&save&a&portion&of&it,&do&it&this&way:
&?php
$content=file_get_contents("http://www.google.com",FALSE,NULL,0,20);
echo&$content;
?&
This&will&echo&the&20&first&bytes&of&the&google.com&source&code.
the&bug&#36857&was&fixed.http://bugs.php.net/36857Now&you&may&use&this&code,to&fetch&the&partial&content&like&this:&?php$context=array('http'&=&&array&('header'=&&'Range:&bytes=1024-',&),);$xcontext&=&stream_context_create($context);$str=file_get_contents("http://www.fcicq.net/wp/",FALSE,$xcontext);?&that's&all.
If,&like&me,&you&are&on&a&Microsoft&network&with&ISA&server&and&require&NTLM&authentication,&certain&applications&will&not&get&out&of&the&network.&SETI@Home&Classic&and&PHP&are&just&2&of&them.The&workaround&is&fairly&simple.First&you&need&to&use&an&NTLM&Authentication&Proxy&Server.&There&is&one&written&in&Python&and&is&available&from&http://apserver.sourceforge.net/.&You&will&need&Python&from&http://www.python.org/.Both&sites&include&excellent&documentation.Python&works&a&bit&like&PHP.&Human&readable&code&is&handled&without&having&to&produce&a&compiled&version.&You&DO&have&the&opportunity&of&compiling&the&code&(from&a&.py&file&to&a&.pyc&file).Once&compiled,&I&installed&this&as&a&service&(instsrv&and&srvany&-&parts&of&the&Windows&Resource&Kit),&so&when&the&server&is&turned&on&(not&logged&in),&the&Python&based&NTLM&Authentication&Proxy&Server&is&running.Then,&and&here&is&the&bit&I'm&really&interested&in,&you&need&to&tell&PHP&you&intend&to&route&http/ftp&requests&through&the&NTLM&APS.To&do&this,&you&use&contexts.Here&is&an&example.&?php//&Define&a&context&for&HTTP.$aContext&=&array(&&&&'http'&=&&array(&&&&&&&&'proxy'&=&&'tcp://127.0.0.1:8080',&//&This&needs&to&be&the&server&and&the&port&of&the&NTLM&Authentication&Proxy&Server.&&&&&&&&'request_fulluri'&=&&True,&&&&&&&&),&&&&);$cxContext&=&stream_context_create($aContext);//&Now&all&file&stream&functions&can&use&this&context.$sFile&=&file_get_contents("http://www.php.net",&False,&$cxContext);echo&$sFile;?&Hopefully&this&helps&SOMEONE!!!
This functionality is now implemented in the PEAR package PHP_Compat.
More information about using this function without upgrading your version of PHP can be found on the below link:
http://pear.php.net/package/PHP_Compat}