Why does post simulation fail?

Why does post simulation fail? This post was last edited by h420943302 from 2012-12-11:18:30 & lt; form & nbsp; actionindex. phparticipant letest & nbsp; methodpost & gt; & lt; tr & gt; & lt; td & nbsp; why does the post simulation fail?

This post was last edited by h420943302 at 11:18:30 on

$url='http://127.0.0.1/think_proj/review/index.php/Curl';
$cookie_id=' ECS[visit_times]=2;vvxU_2132_saltkey=oAOaIinB;vvxU_2132_lastvisit=1353993212; vvxU_2132_ulastactivity=1fcbqdoGt1V5Yt5eRaTVuz%2Bwjv1qvM09zYAqbDb4KL6RKzWORniM; lzstat_uv=11374893582414091332|923667; PHPSESSID=pcq1alboi8sq3r9n7d32du20m6';
$post_fields='checkname='.urlencode($name).'&checknum='.$num;
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_COOKIE, $cookie_id);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);
$contents = curl_exec($ch);
curl_close($ch);echo $contents;

Why do I output all the images before submission? why can't I get the post image ..
------ Solution --------------------
// Simulate request data
Function Curl ($ url, $ postfields, $ referer = '', $ cookie_jar = './cookie.txt '){
$ Cur = curl_init ();
$ Opt = Array (
CURLOPT_URL => $ url,
CURLOPT_HEADER => 1,
CURLOPT_NOBODY => 1,
CURLOPT_PORT => 80, // port
CURLOPT_POST => 1, // send a regular POST request in the type of application/x-www-form-urlencoded, just like submitting a form.
CURLOPT_POSTFIELDS => $ postfields, // all the data to be transferred. to transfer a file, a file name starting with @ is required.
CURLOPT_RETURNTRANSFER => 1, // The obtained information is returned in the form of a file stream, rather than directly output.

CURLOPT_SSL_VERIFYHOST => 1, // check whether the SSL encryption algorithm exists from the certificate
CURLOPT_SSL_VERIFYPEER => 0, // checks the certificate Source. 0 indicates that the certificate validity is blocked.
// CURLOPT_COOKIE => GetCook ($ url ),

// CURLOPT_USERAGENT => "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)", // simulate the browser used by the user, the HTTP request contains a "user-agent" header string.
CURLOPT_USERAGENT => 'mozilla/5.0 (Windows NT 6.1; WOW64; rv: 9.0.1) Gecko/20100101 Firefox/9.0.1 ',
CURLOPT_FOLLOWLOCATION => 1,
CURLOPT_COOKIEJAR => Dirname (_ FILE _). $ cookie_jar,
CURLOPT_COOKIEFILE => Dirname (_ FILE _). $ cookie_jar,
CURLOPT_REFERER => $ referer,
);
Curl_setopt_array ($ Cur, $ Opt );
$ Code = curl_exec ($ Cur );
Curl_close ($ Cur );
UnSet ($ Cur );
Return $ code;
}

Function GetCook ($ url ){
$ Curl = curl_init ($ url );
Curl_setopt ($ Curl, CURLOPT_HEADER, 1 );
Curl_setopt ($ Curl, CURLOPT_RETURNTRANSFER, 1 );
$ Cook = curl_exec ($ Curl );
Curl_close ($ Curl );
$ Out = '';
Preg_match ("/ssid \ = (. [^;] *)/I", $ Cook, $ Out );
Return $ Out [1];
}

$ Url = "http://pcik.7di.net/pcik_in ";