Why is the PHP Curl post mode sending data slow? I'll tell you why.

Case:

Today to upload a file to a server, the original is Curl's get mode, now use the post mode, according to the original thought, the code is as follows

1<?PHP2 $post[' c '] = ' config ';3 $post[' t '] = ' show ';4 $post[' o '] = ' xml ';5 $post[' ssid '] = '%07o%b4%88o%ee%0ca%07%da%d8i%d36he%af%28%bc%3c%be%d5s%dfv%a6%d83%d9%3e%16%96u%b4q%ba%0a%9a%de%f0% Bfjjh%df2%ff%d2 ';6 7 8 $curl=curl_init ();9curl_setopt ($curl, Curlopt_url, "http://172.16.59.130:28099/cgi-bin/japi.cgi");Tencurl_setopt ($curl, Curlopt_post,true); Onecurl_setopt ($curl, Curlopt_postfields,$post); Acurl_setopt ($curl, curlopt_encoding, "gzip"); -curl_setopt ($curl, Curlopt_useragent, "mozilla/5.0 (Windows NT 6.1; WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/38.0.2125.111 safari/537.36 -Accept-encoding:gzip,deflate,sdch "); the  -curl_setopt ($curl, Curlopt_returntransfer, 1); -curl_setopt ($curl, Curlinfo_header_out,true); -curl_setopt ($curl, Curlopt_followlocation,false); + $contents= Curl_exec ($curl); -Curl_close ($curl); + Echo $contents; A?>

But time is always around 2s, and with Get mode is very quickly, just start to suspect is the server problem, but with a try attitude, check the next Curl post what special place, this really found.

In PHP Curl post mode, when enabled, a regular post request is sent with the type:application/x-www-form-urlencoded, just like the form submitted.

If you convert the array you want to post to a string, like get that URL, the speed comes up.

1<?PHP2 $post[' c '] = ' config ';3 $post[' t '] = ' show ';4 $post[' o '] = ' xml ';5 6 $post=Http_build_query($post);7 $post. = "&ssid=%07o%b4%88o%ee%0ca%07%da%d8i%d36he%af%28%bc%3c%be%d5s%dfv%a6%d83%d9%3e%16%96u%b4q%ba%0a%9a%de%f0% Bfjjh%df2%ff%d2 ";8 9 $curl=curl_init ();Tencurl_setopt ($curl, Curlopt_url, "http://172.16.59.130:28099/cgi-bin/japi.cgi"); Onecurl_setopt ($curl, Curlopt_post,true); Acurl_setopt ($curl, Curlopt_postfields,$post); -curl_setopt ($curl, curlopt_encoding, "gzip"); -curl_setopt ($curl, Curlopt_useragent, "mozilla/5.0 (Windows NT 6.1; WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/38.0.2125.111 safari/537.36 theAccept-encoding:gzip,deflate,sdch "); -  -curl_setopt ($curl, Curlopt_returntransfer, 1); -curl_setopt ($curl, Curlinfo_header_out,true); +curl_setopt ($curl, Curlopt_followlocation,false); - $contents= Curl_exec ($curl); +Curl_close ($curl); A Echo $contents; at?>

Why is the PHP Curl post mode sending data slow? I'll tell you why.