head

What is the easiest way to use the HEAD command of HTTP in PHP?

由 房东的猫 提交于 2019-11-27 02:43:01
问题 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

Explanation of code (linked list C)

由 ╄→гoц情女王★ 提交于 2019-11-27 02:17:36
问题 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

python head, tail and backward read by lines of a text file

由 穿精又带淫゛_ 提交于 2019-11-27 00:24:29
问题 How to implement somethig like the 'head' and 'tail' commands in python and backward read by lines of a text file? 回答1: 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

When do you put Javascript in body, when in head and when use doc.load? [duplicate]

由 点点圈 提交于 2019-11-26 20:25:56
问题 Possible Duplicate: Where to place Javascript in a HTML file? Should I write script in the body or the head of the html? I've always wondered, mainly because when creating pages I always run into trouble, based on the following thing: When do you write your javascript In the <head> In the <body> with a $(document).ready() I could be stupid, but I've had a few times when my JavaScript (/jQuery) wasn't executed because of the wrong place or yes or no doc.ready() command. So I'm really wondering

Getting HEAD content with Python Requests

由 試著忘記壹切 提交于 2019-11-26 20:24:27
问题 I'm trying to parse the result of a HEAD request done using the Python Requests library, but can't seem to access the response content. According to the docs, I should be able to access the content from requests.Response.text. This works fine for me on GET requests, but returns None on HEAD requests. GET request (works) import requests response = requests.get(url) content = response.text content = <html>...</html> HEAD request (no content) import requests response = requests.head(url) content

Is header('Content-Type:text/plain'); necessary at all?

由 ╄→гoц情女王★ 提交于 2019-11-26 19:07:34
问题 I didn't see any difference with or without this head information yet. 回答1: Define "necessary". It is necessary if you want the browser to know what the type of the file is. PHP automatically sets the Content-Type header to text/html if you don't override it so your browser is treating it as an HTML file that doesn't contain any HTML. If your output contained any HTML you'd see very different outcomes. If you were to send: <b><i>test</i></b> a Content-Type: text/html would output: test

inject a javascript function into an Iframe

由 旧巷老猫 提交于 2019-11-26 18:52:11
This link ( archived version ) describes how to inject code from a script into an iframe: function injectJS() { var iFrameHead = window.frames["myiframe"].document.getElementsByTagName("head")[0]; var myscript = document.createElement('script'); myscript.type = 'text/javascript'; myscript.src = 'myscript.js'; // replace this with your SCRIPT iFrameHead.appendChild(myscript); } That's ok, but what if I want to insert a function object into an iframe and get it executed in the iframe context ? Let's say I have: function foo () { console.log ("Look at me, executed inside an iframe!", window); }

One or more resources has the target of 'head' but not 'head' component has been defined within the view

由 落花浮王杯 提交于 2019-11-26 16:41:17
I'm using NetBeans 7.3.1 and PrimeFaces 3.5 on GlassFish 3.2. I created a JSF page with PrimeFaces components. The project runs fine, but the PrimeFaces UI look'n'feel is completely missing. I'm only noticing below message in server log: One or more resources has the target of 'head' but not 'head' component has been defined within the view What does this mean and how can I fix the PrimeFaces UI look'n'feel? BalusC This means that you're using plain HTML <head> instead of JSF <h:head> in your XHTML template. The JSF <h:head> allows automatic inclusion of CSS/JS resources in the generated HTML

Head and tail in one line

由 一世执手 提交于 2019-11-26 12:39:15
问题 Is there a pythonic way to unpack a list in the first element and the \"tail\" in a single command? For example: >> head, tail = **some_magic applied to** [1, 1, 2, 3, 5, 8, 13, 21, 34, 55] >> head 1 >>> tail [1, 2, 3, 5, 8, 13, 21, 34, 55] 回答1: Under Python 3.x, you can do this nicely: >>> head, *tail = [1, 1, 2, 3, 5, 8, 13, 21, 34, 55] >>> head 1 >>> tail [1, 2, 3, 5, 8, 13, 21, 34, 55] A new feature in 3.x is to use the * operator in unpacking, to mean any extra values. It is described in

javascript code not work in HEAD tag

由 我是研究僧i 提交于 2019-11-26 11:39:36
问题 My webpage has the following code: <html> <head> <title>This is test Page</title> <script language=\"javascript\" type=\"text/javascript\"> document.getElementById(\"msg1\").innerHTML = document.URL.toString(); </script> </head> <body> <div class=\"sss\"> <p id=\"msg1\"></p> </div> </body> </html> As you now at the time the script executes the div doesn\'t exist but I want to put my JavaScript code only In the <head> tag and I won\'t put it in middle of HTML code. But this code only works
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