head

I would like to send the HEAD command of the Hypertext Transfer Protocol to a server in PHP to retrieve the header, but not the content or a URL. How do I do this in an efficient way? The probably most common use-case is to check for dead web links. For this I only need the reply code of the HTTP request and not the page content. Getting web pages in PHP can be done easily using file_get_contents("http://...") , but for the purpose of checking links, this is really inefficient as it downloads the whole page content / image / whatever. As an alternative to curl you can use the http context

I am using JSF to render an HTML page. I design the page like it : <f:view xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:p="http://primefaces.org/ui" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core"> <h:head> <meta http-equiv="content-type" content="text/html; charset=UTF-8" /> <meta name="language" content="fr" /> <title><ui:insert name="title">My app</ui:insert></title> </h:head> <h:body> <div id="top"> <ui:include src="/header.xhtml"/> </div> <h:panelGroup id="center" layout="block" > <ui:insert name="center"/> </h

This is not my code. I took this code off this website: http://www.macs.hw.ac.uk/~rjp/Coursewww/Cwww/linklist.html I am using for reference material on how to build a linked list. I'm a little confused on what is going on. Can someone please explain to me what is going on. I'll mark what is confusing me with 1-5. #include<stdlib.h> #include<stdio.h> struct list_el { int val; struct list_el * next; }; typedef struct list_el item; void main() { item * curr, * head; int i; head = NULL; //1 for(i=1;i<=10;i++) { curr = (item *)malloc(sizeof(item)); curr->val = i; curr->next = head; //2 head = curr;

How to implement somethig like the 'head' and 'tail' commands in python and backward read by lines of a text file? This is my personal file class ;-) class File(file): """ An helper class for file reading """ def __init__(self, *args, **kwargs): super(File, self).__init__(*args, **kwargs) self.BLOCKSIZE = 4096 def head(self, lines_2find=1): self.seek(0) #Rewind file return [super(File, self).next() for x in xrange(lines_2find)] def tail(self, lines_2find=1): self.seek(0, 2) #Go to end of file bytes_in_file = self.tell() lines_found, total_bytes_scanned = 0, 0 while (lines_2find + 1 > lines

This seems like a ridiculously easy question... but I'm not seeing the easy answer I was expecting. So, how do I get the value at an nth row of a given column in Pandas? (I am particularly interested in the first row, but would be interested in a more general practice as well). For example, let's say I want to pull the 1.2 value in Btime as a variable. Whats the right way to do this? df_test = ATime X Y Z Btime C D E 0 1.2 2 15 2 1.2 12 25 12 1 1.4 3 12 1 1.3 13 22 11 2 1.5 1 10 6 1.4 11 20 16 3 1.6 2 9 10 1.7 12 29 12 4 1.9 1 1 9 1.9 11 21 19 5 2.0 0 0 0 2.0 8 10 11 6 2.4 0 0 0 2.4 10 12 15

What is the difference between the HEAD and master in Git? I did a clone of a project on GitHub and want to push my changes to the remote. But to which one should I push? master is a reference to the end of a branch. By convention (and by default) this is usually the main integration branch, but it doesn't have to be. HEAD is actually a special type of reference that points to another reference. It may point to master or it may not (it will point to whichever branch is currently checked out). If you know you want to be committing to the master branch then push to this. Here is a visual example

There seems to be a difference between the last commit, the HEAD and the state of the file I can see in my directory. What is HEAD, what can I do with it and what mistake should I avoid? poke HEAD is a reference to the last commit in the currently checked-out branch. There is a small exception to this, which is the detached HEAD. A detached HEAD is the situation you end up in whenever you check out a commit (or tag) instead of a branch. In this case, you have to imagine this as a temporary branch without a name; so instead of having a named branch reference, we only have HEAD. It will still

I am going to assume the answer is no but.... Is there a way to use WebClient to send the HEAD method and return the headers as a string or something similar? You are right WebClient does not support this. You can use HttpWebRequest and set the method to HEAD if you want this functionality: System.Net.WebRequest request = System.Net.WebRequest.Create(uri); request.Method = "HEAD"; request.GetResponse(); Another way is to inherit from WebClient and override GetWebRequest(Uri address) . public class ExWebClient : WebClient { public string Method { get; set; } protected override WebRequest

Dlib C++ can detect landmark and estimate face pose very well. However, how can I get 3D coordinate Axes direction (x,y,z) of head pose? I was also facing the same issue, a while back ago, searched and found 1-2 useful blog posts, this link would get you an overview of the techniques involved, If you only need to calculate the 3D pose in decimal places then you may skip the OpenGL rendering part, However if you want to visually get the Feedback then you may try with OpenGL as well, But I would suggest you to ignore the OpenGL part as a beginner, So the smallest working code snippet extracted