PoojaMoolya at 11:40, 24 March 2017

2017-03-24T11:40:52Z

Sandhya.np14 at 12:45, 2 June 2015

2015-06-02T12:45:10Z

Sandhya.np14 at 12:41, 2 June 2015

2015-06-02T12:41:51Z

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Pratik kamble at 06:33, 10 July 2014

2014-07-10T06:33:42Z

Pratik kamble at 06:33, 10 July 2014

2014-07-10T06:33:22Z

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Gyan: Created page with '{|Border=1 !Time !Narration |- |0:00 |Welcome to this tutorial on a page counter. |- |0:02 |This will count how many people have visited your page per refresh. |- |0:07 |So ev…'

2013-10-25T10:19:57Z

Created page with '{|Border=1 !Time !Narration |- |0:00 |Welcome to this tutorial on a page counter. |- |0:02 |This will count how many people have visited your page per refresh. |- |0:07 |So ev…'

New page

{|Border=1
!Time
!Narration
|-
|0:00
|Welcome to this tutorial on a page counter.
|-
|0:02
|This will count how many people have visited your page per refresh.
|-
|0:07
|So every time someone enters the page, a value will be incremented, will be stored in a text file and it will be displayed to the user.
|-
|0:15
|Or you can keep it to yourself. Its your choice whether you want to display.
|-
|0:19
|Please note, this is a very simple way of doing this.
|-
|0:21
|It won't count unique visitors.
|-
|0:23
|I'll make a unique visitors tutorial soon.
|-
|0:27
|It'll probably be available by the time you are viewing this.
|-
|0:30
|So check it out. It will be more specific.
|-
|0:33
|It deals with IP addresses.
|-
|0:35
|However, for now this is a basic counter tutorial and its using file-storage as opposed to database-storage.
|-
|0:42
|Ok. So the first thing we need to do is create a file in which to store our value in.
|-
|0:48
|There are 2 ways to do this.
|-
|0:50
|Either right-click and create a new text document.
|-
|0:53
|Or what I'll show you is how to create a file for opening, which is the function 'fopen'.
|-
|0:59
|And we'll store it in the file variable. But its not manadatory.
|-
|1:05
|And we'll say count.php and another parameter for this is whether you want it for writing, for reading or to append that, for example.
|-
|1:22
|So, I'll say for writing.
|-
|1:26
|Ok. Now I'll say 'fwrite' and I'll write to file and I'll create a value of zero.
|-
|1:36
|So, now we'll open our page-up and refresh.
|-
|1:41
|We've got counter.php. Click on that and when we go back see if we've got count.php
|-
|1:49
|So, .txt
|-
|1:51
|So, lets refresh this.
|-
|1:54
|Ok, so now we should have a .txt file.
|-
|2:00
|Let me remove this - count.php.
|-
|2:05
|Now we've done that and we really don't need this code.
|-
|2:08
|So I'll delete this part but I'll retain this and now I'll say I want to read from the file.
|-
|2:14
|You could type this manually also. You just have to create a file for writing instead of reading.
|-
|2:22
|So, we've got our file and we've got our value of zero in it.
|-
|2:26
|So, lets open it and see.
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|2:28
|Yes, we've got count.txt with zero that will read this and put it into that.
|-
|2:34
|So, now, I need to get the contents of the file.
|-
|2:37
|So, instead of 'fopen' I'll say, 'file_get_contents'.
|-
|2:42
|So, I'll type 'file_get_contents'.
|-
|2:44
|And that will get the contents of 'count.txt'.
|-
|2:48
|Ok. Then I'll say 'echo' and use the variable and I'll say 'echo file'.
|-
|2:52
|Now what this will do is it will say file_get_contents and it will get the contents of our text file with our count variable in there.
|-
|3:02
|And it will say echo out the contents of the file.
|-
|3:05
|So, lets go back to our page and we will refresh.
|-
|3:07
|Click on counter and we've got zero at the moment.
|-
|3:10
|Refreshing. Its still staying at zero as displayed here.
|-
|3:14
|If I change this to 'hello' and I went back to our page and refreshed, it'll have the value 'hello'.
|-
|3:20
|So, we are just echoing out whatever is in this text file at the moment.
|-
|3:25
|And right now its zero - the integer zero.
|-
|3:30
|Now to echo this, I'll say 'You've had file visitors'.
|-
|3:37
|So, that will give us something like that.
|-
|3:40
|Now, what I'll do is I will create a new variable called 'visitors'.
|-
|3:46
|And I'll say that is equal to 'file'.
|-
|3:50
|I'll put this up here to be more efficient and easy to read as well.
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|3:55
|And I'll say 'visitors' and we can tell what this is going to be.
|-
|4:00
|And then what we'll say is visitors
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|4:05
|Visit-ors - new - equals this vistors plus 1.
|-
|4:14
|So this will be our new value.
|-
|4:17
|Then I'll go ahead and say 'filenew', so I'm creating a new file.
|-
|4:22
|I'll open that as count.txt because that's what it is.
|-
|4:27
|And I'll say to write this file.
|-
|4:30
|Now if it was 'a+' that means 'append' - so I'm appending something onto the file, which means that I'm adding to it.
|-
|4:38
|What I want to do is overwrite, so I'll put 'w'.
|-
|4:42
|And then I'll say 'fwrite' like we did in our first part - to 'filenew'.
|-
|4:47
|And the value that I need to write is 'visitorsnew'.
|-
|4:50
|This is going to work. Lets just go through it before you run it.
|-
|4:55
|We've got our main file and that's getting the contents of our count.txt which is zero at the moment.
|-
|5:04
|We're setting our variable called 'visitors' to the contents of the file.
|-
|5:07
|We're echoing out to the user how many visitors there have been.
|-
|5:11
|And we're creating a new variable with the 'visitors + 1' - namely the person that is viewing this page at the moment.
|-
|5:20
|That becomes significant. That's the person adding the extra 1 in there.
|-
|5:24
|And then we're opening a new file as we saw in the start of this tutorial but instead we're using 'w' for write.
|-
|5:32
|Then we're writing to our new file the new value which is increment of 1.
|-
|5:37
|So, lets refresh and you can see - oh!.
|-
|5:41
|Its not working!
|-
|5:42
|Ok, so lets check this code.
|-
|5:44
|Lets check the spelling of visitors - Visit-ors new. Ok. Visit-ors.
|-
|6:01
|That's the reason. I had to put a 'n' there.
|-
|6:06
|So, count.txt.
|-
|6:07
|Now this time, we are adding 1 each time we refresh.
|-
|6:12
|You can see that the value is in fact going up.
|-
|6:16
|Now obviously, to reset this, all you would have to do is -
|-
|6:19
|Ah! a warning. 'count.txt' has been changed because we have edited it.
|-
|6:24
|I'll say 'reload from disk'.
|-
|6:27
|And its changed to 19, as you can see, it displayed 18 there.
|-
|6:30
|The reason is that we're echoing this out before we put our new value in.
|-
|6:35
|So, for maximum efficiency and to get the actual correct value I'll put this code down there.
|-
|6:41
|As matter of fact, when I am refreshing here and lets say, we get to 25 visitors and we come back here, we'll have the value 26.
|-
|6:51
|Ok, well, maybe I'm being a little disorganised here.
|-
|6:55
|There's no major efficient way to do it.
|-
|6:57
|This will always echo out 'visitors'
|-
|6:59
|So just for variation, we'll say 'visitors_new'.
|-
|7:07
|So, this will equal exactly - oh no!
|-
|7:11
|visitors new - another spelling mistake.
|-
|7:16
|Right, so lets increment to 35 and we're going to contents and this value equals 35.
|-
|7:24
|Position isn't everything when you have to deal with a code as simple as this but it does help.
|-
|7:30
|Ok - so that's the basic tutorial.
|-
|7:32
|If you'd like to get any help on it, then please get in touch.
|-
|7:35
|But for now, try this out, give it a go.
|-
|7:37
|Also watch my other tutorial on the more advanced counter that takes IP addresses into account.
|-
|7:43
|Thanks for watching. This is Osama Butt dubbing for the Spoken Tutorial Project.

@@ Line 211: / Line 211: @@
 |-
 |05:41
-|It's not working!
+|It's not working!Ok, so let's check this code.
-|-
-|05:42
-|Ok, so let's check this code.
 |-
 |05:44
@@ Line 223: / Line 220: @@
 |-
 |06:06
-|So, "count.txt".
+|So, "count.txt".Now this time, we are adding 1 each time we refresh.
-|-
-|06:07
-|Now this time, we are adding 1 each time we refresh.
 |-
 |06:12

@@ Line 154: / Line 154: @@
 |-
 |04:00
-|And then what we'll say is '''$visitors'''
+|And then what we'll say is '''$visitors'''.
 |-
 |04:05
@@ Line 259: / Line 259: @@
 |-
 |06:57
-|This will always echo out '$visitors'
+|This will always echo out '$visitors'.
 |-
 |06:59

@@ Line 1: / Line 1: @@
 {|Border=1
-!Time
+|'''Time'''
-!Narration
+|'''Narration'''
 |-
 |00:00

PHP-and-MySQL/C4/Simple-Visitor-Counter/English-timed - Revision history

PoojaMoolya at 11:40, 24 March 2017

Sandhya.np14 at 12:45, 2 June 2015

Sandhya.np14 at 12:41, 2 June 2015

Pratik kamble at 06:33, 10 July 2014

Pratik kamble at 06:33, 10 July 2014

Gyan: Created page with '{|Border=1 !Time !Narration |- |0:00 |Welcome to this tutorial on a page counter. |- |0:02 |This will count how many people have visited your page per refresh. |- |0:07 |So ev…'