Post data to a specific port using PHP/Curl.
Post data to a specific port using PHP/Curl.
In this article,I will show how to Post data to a specific port using PHP/Curl Method. PHP-curl library can be used to communicate with a specific port under Linux and windows platform.
Example: Send data to Port in PHP.
In this article,I will show how to Post data to a specific port using PHP/Curl Method. PHP-curl library can be used to communicate with a specific port under Linux and windows platform.
Example: Send data to Port in PHP.
<?php
ini_set("display_errors",1);
error_reporting(E_ERROR);
$msg="&command=1";
$url = "http://127.0.0.1:1234";
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $msg);
curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$response = curl_exec($curl);
if($response!="")
{
$fp = fopen("test.txt","w");
fwrite( $fp, $response);
fclose($fp);
}
curl_close($curl);
?>
Apache Interview Questions and Answers - Apache Web Server
Apache Interview Questions and Answers - Apache Web Server
In this section, I have selected Basic and Important Apache interview questions and answers for all levels of candidates(Fresher level, experienced level).Last few months I have been working to select best question and answer set for Apache interview questions.
Apache Interview Questions and Answers:
------------------------------------------------------------------------------------------------------------
How do you set up a virtual host in Apache?
Ans: <VirtualHost www.test.com>
ServerAdmin admin@test.com
DocumentRoot /home/Public_html/site
ServerName www.test.com
ErrorLog /home/apache/logs/error/site/error_log
TransferLog /home/apache/logs/access/site/access_log
</VirtualHost>
------------------------------------------------------------------------------------------------------------
In this section, I have selected Basic and Important Apache interview questions and answers for all levels of candidates(Fresher level, experienced level).Last few months I have been working to select best question and answer set for Apache interview questions.
Apache Interview Questions and Answers:
------------------------------------------------------------------------------------------------------------
How do you set up a virtual host in Apache?
Ans: <VirtualHost www.test.com>
ServerAdmin admin@test.com
DocumentRoot /home/Public_html/site
ServerName www.test.com
ErrorLog /home/apache/logs/error/site/error_log
TransferLog /home/apache/logs/access/site/access_log
</VirtualHost>
------------------------------------------------------------------------------------------------------------
htpasswd :
Ans: It creates a new user and asks to specify a password for that user.
------------------------------------------------------------------------------------------------------------
What's the command to stop Apache?
Ans:
apachectl -k stop
/etc/init.d/apache2 stop (Linux)
------------------------------------------------------------------------------------------------------------
What's the command to Restart Apache?
Ans:
apachectl -k restart
/etc/init.d/apache2 restart
------------------------------------------------------------------------------------------------------------
What's the location of log files for Apache server ?
Ans: /var/log/httpd
------------------------------------------------------------------------------------------------------------
What's the Comamnd to check the version of Apache server ?
Ans: rpm -qa |grep httpd
------------------------------------------------------------------------------------------------------------
Apache server works on which ports ?
Ans: http – port 80
https – port 443
------------------------------------------------------------------------------------------------------------
Ans: If you have mod_php installed, use AddHandler.
AddHandler application/x-httpd-php .phtml .php
------------------------------------------------------------------------------------------------------------
If you specify both deny from all and allow from all, what will be the default action of Apache?
Ans: Deny always takes precedence over allow.
------------------------------------------------------------------------------------------------------------
How do you change the default web root?
Ans: Change the DocumentRoot in httpd.conf file.
------------------------------------------------------------------------------------------------------------
How to enable htaccess on Apache?
Ans:
Open httpd.conf and remove the comment on line from
;LoadModule rewrite_module modules/mod_rewrite.so
Find the following
Options Indexes FollowSymLinks MultiViews
AllowOverride None
Order allow,deny
allow from all
and change it to
Options Indexes FollowSymLinks MultiViews
AllowOverride all
Order allow,deny
allow from all
------------------------------------------------------------------------------------------------------------
Does Apache act as Proxy server?
Ans: Yes,using mod_proxy module.
------------------------------------------------------------------------------------------------------------
Print a web page using PHP/JavaScript Code
Print a web page using PHP/JavaScript Code
In this article I will show how to Print a HTML Web Page using PHP/JavaScript.I have Written simple script to print Visitor card in PHP.On web page, there is a print option. When the user click on `print` Button it will send a print command to the printer.
We are using Javascript window.print(); function to print HTML portion of a Web Page.
Javascript window.print():
The window.print() method prints the contents of the current page.This method is supported in all major browsers.
Example: How to Print a Web Page Using JavaScript and PHP.
In this article I will show how to Print a HTML Web Page using PHP/JavaScript.I have Written simple script to print Visitor card in PHP.On web page, there is a print option. When the user click on `print` Button it will send a print command to the printer.
We are using Javascript window.print(); function to print HTML portion of a Web Page.
Javascript window.print():
The window.print() method prints the contents of the current page.This method is supported in all major browsers.
Example: How to Print a Web Page Using JavaScript and PHP.
<!DOCTYPE html>
<HTML lang="en"><HEAD>
<TITLE>Print Visitor card using PHP/JavaScript </TITLE>
<META content=IE=7 http-equiv=X-UA-Compatible>
<META content="text/html; charset=Windows-1252" http-equiv=Content-Type>
<STYLE>
#outer
{
border-collapse:collapse;
border: 0px solid black;
height:250px;width:420px;
}
.cover{
background:#EEEEEE;
padding: 10px;
text-align:left;
margin:10px;
width:400px;
height:200px;
font-size: 1.0em;
top:10%; left:10%;
/*--CSS3 Box Shadows--*/
-webkit-box-shadow: 0px 0px 20px #000;
-moz-box-shadow: 0px 0px 20px #000;
box-shadow: 0px 0px 20px #000;
/*--CSS3 Rounded Corners--*/
-webkit-border-radius: 30px;
-moz-border-radius: 30px;
border-radius: 30px;
}
#inner
{
border-collapse:collapse;
border: 0px solid black;
height:100%;width:100%;
background:#EEEEEE;
}
#hgt_abv
{ height:18%;}
#hgt_abv_back
{ float:inherit;
height:18px;
width:400px;
background:#000000;
}
#hgt_belo
{ height:3%;background:#FF6600;}
.docimg
{
float:inherit;
hight:119px;
width:90px;
}
.logo
{
float:left;
width:100px;
}
.address
{
padding:2px;
text-align:left;
margin:2px;
hight:100px;
width:130px;
font-size: 1.1em;
}
</STYLE>
<META name=GENERATOR content="MSHTML 9.00.8112.16446"></HEAD>
<BODY class="ExtravaganzaAqua page-view2" >
<CENTER><SPAN></SPAN>
<TABLE id=outer>
<TR>
<TD><DIV class=cover>
<TABLE id=inner border=0>
<TR>
<TD align=center colspan="2">
<DIV id=hgt_abv_back><FONT color=#ffffff size=3><B>VISITOR PASS</B></FONT></DIV>
</TD>
</TR>
<TR>
<TD valign="top" align=left><br /><FONT size=2><B>Name: </B><B>Computer Geek</B><br /><br /><br />
<B>Designation: </B><B>Software Engg.</B><br /><br /><br />
<B>Date: </B><B>24th Nov 2012</B><br />
</FONT>
</TD>
<TD valign="top" align=right>
<img width="90" hight="119px" src="user.jpg" alt="bg">
</TD>
</TR>
<TR id=hgt_belo>
<TD colSpan=2></TD>
</TR>
</TABLE>
</DIV>
</TD>
</TR>
</TABLE>
</CENTER>
<center>
<table id=outer>
<tr>
<td align="right" valign="top">
<button type="button" onclick="window.print();" >Print</button>
</td>
</tr>
</table>
</center>
</BODY>
</HTML>
I hope this example will help you to Print a Web Page Using JavaScript and PHP.
C Interview Questions and Answers For Freshers/ Experienced
C Interview Questions and Answers For Freshers / Experienced - Important Quiz
In this section, I have selected Basic and Important C interview questions and answers for all levels of candidates(Fresher level, advanced level,experienced level).
Last few months I have been working to select best question and answer set for C interview questions.
Here is some Important C Interview Questions and Answers for freshers and experienced:
1.Can we have a pointer to a pointer in C?
Answer: Yes
char *a; - Pointer to a character
char **a; - Pointer to a pointer
2.How to convert strings in c to corresponding Integer?
Answer:
atoi() function convert a string into corresponding integer value.use stdlib.h header file.
3. C Data types?
Answer :Int, char, float, void etc. are predefined basic primitive data types.Structures and Unions are user defined data types.
4.Find the output of the following program?
#include
main()
{
int i=10;
printf("%d",++i);
printf("%d",i++);
printf("%d",(i++*i++))
}
5.Octal literal in C?
#include
main()
{
int i=020;
printf("i is %d",i);
}
Output:16
Answer :
In c and c ++ language 0 (zero) is the octel literal so it will print its Octel representation of 16.
6.Whats is difference between file descriptor and file pointer?
7.Two forms of #include directive?
Answer :
1.#include”filename”
2.#include
8.Find the output of the following program?
#include
main()
{
int str=0;
if(str==0)
printf("True");
printf("False");
}
Answer :
True
False
9.Find the output of the following program?
#include
main()
{
int x=0;
if(x==0)
printf("True");
else
printf("False");
}
Answer :
True
10.What will be the Output of the following program?
#include
main()
{
int i=50, j=100;
i = j++;
j = ++j;
printf("%d %dn",i,j);
}
Answer :
51, 101
11.What will be the Output of the following program?
#include
main()
{
int i = 10;
printf("%d", main||i);
}
Answer :
1
12. Write a Program to convert decimal to binary number?
Answer :
#include
main()
{
int x,y,n,arr[50];
clrscr();
printf("Enter the decimal number");
scanf("%d",n);
for(x=0;x
{
arr[x]=n%2;
n=n/2;
}
for(y=n;y>0;y--)
{
printf("%d",arr[y]);
}
getch();
}
In this section, I have selected Basic and Important C interview questions and answers for all levels of candidates(Fresher level, advanced level,experienced level).
Last few months I have been working to select best question and answer set for C interview questions.
Here is some Important C Interview Questions and Answers for freshers and experienced:
1.Can we have a pointer to a pointer in C?
Answer: Yes
char *a; - Pointer to a character
char **a; - Pointer to a pointer
2.How to convert strings in c to corresponding Integer?
Answer:
atoi() function convert a string into corresponding integer value.use stdlib.h header file.
3. C Data types?
Answer :Int, char, float, void etc. are predefined basic primitive data types.Structures and Unions are user defined data types.
4.Find the output of the following program?
#include
main()
{
int i=10;
printf("%d",++i);
printf("%d",i++);
printf("%d",(i++*i++))
}
5.Octal literal in C?
#include
main()
{
int i=020;
printf("i is %d",i);
}
Output:16
Answer :
In c and c ++ language 0 (zero) is the octel literal so it will print its Octel representation of 16.
6.Whats is difference between file descriptor and file pointer?
7.Two forms of #include directive?
Answer :
1.#include”filename”
2.#include
8.Find the output of the following program?
#include
main()
{
int str=0;
if(str==0)
printf("True");
printf("False");
}
Answer :
True
False
9.Find the output of the following program?
#include
main()
{
int x=0;
if(x==0)
printf("True");
else
printf("False");
}
Answer :
True
10.What will be the Output of the following program?
#include
main()
{
int i=50, j=100;
i = j++;
j = ++j;
printf("%d %dn",i,j);
}
Answer :
51, 101
11.What will be the Output of the following program?
#include
main()
{
int i = 10;
printf("%d", main||i);
}
Answer :
1
12. Write a Program to convert decimal to binary number?
Answer :
#include
main()
{
int x,y,n,arr[50];
clrscr();
printf("Enter the decimal number");
scanf("%d",n);
for(x=0;x
{
arr[x]=n%2;
n=n/2;
}
for(y=n;y>0;y--)
{
printf("%d",arr[y]);
}
getch();
}
Top Important C FAQs and Interview Questions
- What is the difference between strings and character arrays?
- Differences between pass by reference and pass by value?
- What does static variable mean?
- What is the use of semicolon at the end of every statement?
- What is a null pointer?
- What is a pointer?
- When would you use a pointer to a function?
- What are the uses of a pointer?
- In header files whether functions are declared or defined?
- What are the differences between malloc () and calloc ()?
- What is the heap?
- What is the stack?
- Difference between const char* p and char const* p?
- What is a structure?
- What is a union?
- What is Operator overloading ?
- What is a void pointer?
- What is hashing?
- What are the different storage classes in C?
- What are the differences between structures and union?
- What is the difference between calloc() and malloc()?
- What are the differences between structures and arrays?
- What is the difference between printf() and sprintf()?
- What is static memory allocation and dynamic memory allocation?
- Define recursion in C?
- What is the use of typedef?
- How are pointer variables initialized?
- What are the advantages of auto variables?
C Program to find smallest number with Output in a given array of elements.
C Program to find smallest number with Output in a given array of elements.
In this article ,I have written simple c program to find smallest number in a given array of elements.
Interview Question : Write a program to find the smallest and largest element in a given array in c?
Example:
/***
Program to find smallest Number
***/
#include<stdio.h>
#include<conio.h>
main()
{
int arr[50],n,j,s;
clrscr();
printf("Enter the size of array:");
scanf("%d",&n);
printf("Enter %d integers:",n);
for(j=0;j
scanf("%d",&arr[i]);
s==arr[0];
for(j=0;j
{
if(arr[i]
s=arr[i];
}
printf("Smallest number is %d",s);
getch();
}
Output:
Enter the size of array:3
34
35
60
Smallest number is: 34
