ASP (VB, C#) / PHP code reference

'This is my comments for the line

ASP C# Comments, inline

'This is my comments for the line

PHP Comments, inline

//This is my comments for the line

#This is my comments for the line

'line1

'line2

'line3

ASP C# Comments, block

/*
This the multi command lines

For the pieces of code bellow.
*/

PHP Comments, block

/*
This the multi command lines

For the pieces of code bellow.
*/

""
"var text1=""<img src=\""blank.gif\"">"";"

ASP C#, Escaping quotes

""
string test = @"sally said ""Yes you may."" ";

PHP, Escaping quotes

\" or use ' like javascript

'var text1="<img src=\"blank.gif\">";';

None, but : can be used to separate commands
on the same line.

ASP C# Command termination

Each command must end with ;

PHP Command termination

Each command must end with ; but
multiple commands per line are allowed.

Response.Write ("hello, world")

Response.Write( "Hello, World!" );

echo "hello, world";

or print ('hello world');

Response.Write("Hello," + System.Environment.NewLine + " World!

")

Response.Write("Hello," & vbCrLf " World! ")

ASP C# Newline characters

Response.Write("Hello," + System.Environment.NewLine + " World!

");

Response.Write(" Hello," + System. ControlChars.NewLine + " World!

");

PHP Newline characters

"\n" (must be inside "", not '')

Not case sensitive,
so ‘using system’ is the same as

using System

ASP C# Variable Names

Case sensitive,
so using system; have to be only using System;  Response.Write("”);

PHP Variable Names

Case sensitive AND must begin with $
so $Var is NOT the same as $var

Dim x As String = “Con” & “caten” & “ation”

‘ The preceding statements set both x and y to “Concatenation”.

C# String concatenation

string str = “Hello ” + userName + “. Today is ” + date + “.”;

System.Console.WriteLine(str);

PHP String concatenation

. and .=

$fname=$name1." ".$name2;
$emsg.="error!";

LCase(), UCase()

lowerName=LCase(chatName)
upperName=UCase(chatName)

C# Change case

string x = “Janene”;

Console.WriteLine(x);

x = x.ToLower();

Console.WriteLine(x);

x = x.ToUpper();

Console.WriteLine(x);

PHP Change case

strtolower(), strtoupper()

$lowerName=strtolower($chatName);
$upperName=strtoupper($chatName);

Len()

n=Len(chatName)

C# String length

Strings.Len(YourVariable);

string str = “abcdefg”;

Console.WriteLine("1) The length of '{0}' is {1}", str, str.Length);

PHP String length

Strlen();

$n=strlen($chatName);

Dim instance As String

Dim returnValue As String

returnValue = instance.Trim()

C# Trim whitespace

string Trim()

temp=Trim(xpage);

PHP Trim whitespace

trim() and also ltrim(), rtrim()
$temp=trim($xpage);

Left(), Right(), Mid()

Left(”abcdef”,3)      result = “abc” Right(”abcdef”,2)     result = “ef”

Mid(”abcdef”,3)       result = “cdef”

Mid(”abcdef”,2,4)     result = “bcde”

C# String sections

Left(), Right(), Mid()

string myString = “This is a string”;

Console.WriteLine(Left(myString,4));

Console.WriteLine(Right(myString,6));

Console.WriteLine(Mid(myString,5,4));

Console.WriteLine(Mid(myString,5));

PHP String sections

substr()

substr(”abcdef”,0,3);     result = “abc”

substr(”abcdef”,-2);      result = “ef”

substr(”abcdef”,2);       result = “cdef”

substr(”abcdef”,1,4);     result = “bcde”

if x=100 then

x=x+5

elseif x<200 then

x=x+2

else

x=x+1

end if

if (Condition_1)

Statement_1;

else if (Condition_2)

Statement_2;

else if (Condition_3)

Statement_3;

if ($x==100) {

$x=$x+5;

} else if ($x<200) {

$x=$x+2;

} else {

$x++;

}

for x=0 to 100 step 2

if x>p then exit for

next

C# for loop

class ForLoopTest

{

static void Main()

{

for (int i = 1; i <= 5;  i++)

{

Console.WriteLine(i);

}

}

}

for ($x=0; $x<=100; $x+=2) {

if ($x>$p) {break;}

}

Vb while loop

Do While i>10

some code

Loop

int n = 1;

while (n < 6)

{

Console.WriteLine(”Current value of n is {0}”, n);

n+

while ($x<100) {

$x++;

if ($x>$p) {break;}

}

Dim myNum

myNum = 454

Select Case myNum

Case 2

Response.Write(”myNum is Two”)

Case 3

Response.Write(”myNum is Three”)

Case 4

Response.Write(”myNum is Four”)

Case Else

Response.Write(”myNum is ” & myNum)

End Select

C# Switch 

int cost = 0;

switch(n)

{

case 1:

cost += 25;

break;

case 2:

cost += 25;

goto case 1;

case 3:

cost += 50;

goto case 1;

default:

Console.WriteLine(”Invalid selection. Please select 1, 2, or 3.”);

break;

}

PHP branching

switch ($chartName) {

case “TopSales”:

$theTitle=”Best Sellers”; $theClass=”S”;

break;

case “TopSingles”:

$theTitle=”Singles Chart”; $theClass=”S”;

break;

case “TopAlbums”:

$theTitle=”Album Chart”; $theClass=”A”;

break;

default:

$theTitle=”Not Found”;

}

Public Sub Page_Load(Sender As System.Object, E As System.EventArgs)

var.Text=Request.ServerVariables(”ALL_HTTP”)

End Sub

Request.ServerVariables(”SERVER_NAME”)

Request.ServerVariables(”SCRIPT_NAME”)

Request.ServerVariables(”HTTP_USER_AGENT”)

Request.ServerVariables(”REMOTE_ADDR”)

Request.ServerVariables(”HTTP_REFERER”)

C# Server variables

void Page_Load(Object Sender, EventArgs E){

var.Text=Request.ServerVariables[“ALL_HTTP”];

}

Request.ServerVariables(”SERVER_NAME”);

Request.ServerVariables(”SCRIPT_NAME”);

Request.ServerVariables(”HTTP_USER_AGENT”);

Request.ServerVariables(”REMOTE_ADDR”);

Request.ServerVariables(”HTTP_REFERER”);

PHP Server variables

$_SERVER[“HTTP_HOST”];

$_SERVER[“PHP_SELF”];

$_SERVER[“HTTP_USER_AGENT”];

$_SERVER[“REMOTE_ADDR”];

$_SERVER[“HTTP_REFERER”];

Response.Redirect(”~/page.aspx”)

Server.Transfer(”page.aspx”)

Response.Status=”301 Moved Permanently”

Response.AddHeader “Location”, “http:/prabirchoudhury.wordpress.com/

C# page redirect

Response.Redirect(”~/page.aspx”);

Server.Transfer(”page.aspx”);

Response.Status=”301 Moved Permanently”;

Response.AddHeader “Location”, http://prabirchoudhury.wordpress.com/ ;

PHP Page redirects

header(”Location:page.php”);

Request.QueryString("variable")
Request.Form("variable")

C#, GET and POST variables

Request.QueryString("variable");
Request.Form("variable");

PHP, GET and POST variables

$_GET["variable"];    $_POST["variable"];

$_REQUEST["variable"];

Response.CacheControl = “no-cache”

Response.AddHeader “Pragma”, “no-cache”

Response.Expires = -1

C# prevent page caching

Response.Cache.SetCacheability(HttpCacheability.NoCache);

Response.Cache.SetAllowResponseInBrowserHistory(false);

PHP, prevent page caching

header("Cache-Control: no-store, no-cache");
header("Pragma: no-cache");

Server.ScriptTimeout = 60

C# Limit script execution time, in seconds

Server.ScriptTimeout = 60

PHP, Limit script execution time, in seconds

set_time_limit(240);

'Required for all file system functions
fileObj=Server.CreateObject
("Scripting.FileSystemObject")

C# create a file system object

//Required for all file system functions
fileObj=Server.CreateObject
("Scripting.FileSystemObject");

PHP create a file system

$filename = ‘test.txt’;

$ourFileHandle = fopen($ourFileName, ‘w’) or die(”can’t open file”);

fclose($ourFileHandle);

pFile="data.txt"
fileObj.FileExists(Server.MapPath(pFile))

C# check if a file exists

pFile="data.txt";
fileObj.FileExists(Server.MapPath(pFile));

PHP, check if a file exists

$pFile="data.txt";
file_exists($pFile);

<form id=”Form1″ method=”post” enctype=”multipart/form-data” runat=”server”>

<INPUT runat=”server” />

<br>

<input type=”submit” id=”Submit1″ value=”Upload” runat=”server” />

</form>

File1.PostedFile.SaveAs(SaveLocation)

Response.Write(”The file has been uploaded.”)

C# file upload

<form id=”Form1″ method=”post” enctype=”multipart/form-data” runat=”server”>

<INPUT runat=”server” />

<br>

<input type=”submit” id=”Submit1″ value=”Upload” runat=”server” />

</form>

File1.PostedFile.SaveAs(SaveLocation);

Response.Write(”The file has been uploaded.”);

PHP file upload

$target_path = "uploads/";

$target_path = $target_path . basename( $_FILES['uploadedfile']['name']);

if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {

echo "The file ".  basename( $_FILES['uploadedfile']['name']).

" has been uploaded";

} else{

echo "There was an error uploading the file, please try again!";

}

pFile="data.txt"
fileObj.FileExists(Server.MapPath(pFile))

C# check if a file exists

pFile="data.txt"
fileObj.FileExists(Server.MapPath(pFile));

PHP check if a file exists

$pFile="data.txt";
file_exists($pFile);

pFile=”data.txt”

xPage=fileObj.GetFile(Server.MapPath(pFile))

xSize=xPage.Size  ‘Get size of file in bytes

xPage=fileObj.OpenTextFile(Server.MapPath(pFile))

temp=xPage.Read(xSize)  ‘Read file

linkPage.Close

C# Read a text file

pFile=”data.txt”

xPage=fileObj.GetFile(Server.MapPath(pFile))

xSize=xPage.Size  ‘Get size of file in bytes

xPage=fileObj.OpenTextFile(Server.MapPath(pFile))

temp=xPage.Read(xSize)  ‘Read file

linkPage.Close

PHP, Read a text file

$pFile=”data.txt”;

$temp=file_get_contents($pFile);  //Read file

Set ScriptObject = Server.CreateObject(”Scripting.FileSystemObject”)
ScriptObject.DeleteFile(filename)

C# Delete file

Set ScriptObject = Server.CreateObject(”Scripting.FileSystemObject”);
ScriptObject.DeleteFile(filename);

PHP Delete file

$myFile = “testFile.txt”;

unlink($myFile);

Now(), Date(), Time()

C#Server Time or Date

DateTime myDateTime1 = new DateTime();

PHP Server Time or Date

Date() ; DateTime();

Dim name = “Jeff Smith”

Dim userName = “Smith”

Session.Add(”Name”, name)

Session.Add(”UserName “, userName)

Session(”name”) = txtname.Text;

Session(”address”)=txtaddress.Text;

C# create session

string name = “Jeff Smith”;

string userName = “Smith”;

Session.Add(”Name”, name);

Session.Add(”UserName “, userName);

Session[“name”] = txtname.Text;

Session[“address”]=txtaddress.Text;

PHP create session

session_start();
session_register("sessFirstName");
$sessFirstName = $HTTP_POST_VARS['txtFirstName'];

Session.TimeOut = 240

VB Session timeout

Session.Timeout = 240;

PHP Session timeout

ini_set(’session.gc_maxlifetime’,30);
ini_set(’session.gc_probability’,1);
ini_set(’session.gc_divisor’,1);

Session.RemoveAll()

//you can remove a single variable in the session

Session.Remove(”VarName”)

Session.Clear()

C# session remove

Session.RemoveAll();

//you can remove a single variable in the session

Session.Remove(”VarName”);

Session.Clear()

PHP session remove

//you can remove a single variable in the session
unset($_SESSION[‘session_name’]);

// or this would remove all the variables in the session, but not the session itself
session_unset();

// this would destroy the session variables
session_destroy();

‘   ||||| This is the Connections Object for an SQL DB

Dim MyConn As SqlConnection = New SqlConnection(”Data Source= server_name;Initial Catalog=database_name;User ID=user_name;Password=password”)

C# Database (MSsql) Connection

// Make a connection to the database

myConnection = new SqlConnection(”server=server_name; Initial Catalog=database_name; User; password=password”);

PHP Database (Mysql) Connection

define("HOST", "server_name");

define("USER", "user_name");

define("PASS", "password");

define("DB", "database_name");

$myConn=mysql_connect (HOST, USER, PASS) or die ('I cannot connect to the database because: ' . mysql_error());

@mysql_select_db(DB);

Dim insertCmd = “insert into person (username ,firstname, lastname) values (@username,@firstname, @lastname)”

‘  |||| Set the Command Type (Stored Procedure, Text, etc)

MyCmd.CommandType = CommandType.Text

‘  |||||   Create Parameter Objects for values passed in

Dim objParam1, objParam2

‘  |||||   Add your parameters to the parameters Collection

objParam1 = MyCmd.Parameters.Add(”@UserName”, SqlDbType.VarChar)

objParam2 = MyCmd.Parameters.Add(”@Email”, SqlDbType.VarChar)

‘  |||||   Set the Parameter values to the passed in values

objParam1.Value = strUser

objParam2.Value = strEmail

‘  |||||   open database connection

MyConn.Open()

‘  |||||   execute query

result = MyCmd.ExecuteNonQuery()

‘   |||||   Close the Connection

MyConn.Close()

C# Insert Data into database

// |||| Create a sql command

String insertCmd = “insert into person (username ,firstname, lastname) values (@username,@firstname, @lastname)”;

SqlCommand myCommand = new SqlCommand(insertCmd, myConnection);

myCommand.Parameters.Add(new SqlParameter(”@username”, SqlDbType.NVarChar, 50));

myCommand.Parameters[“@username”].Value = Server.HtmlEncode(userName.Text);

myCommand.Parameters.Add(new SqlParameter(”@firstname”, SqlDbType.NVarChar, 50));

myCommand.Parameters[“@firstname”].Value = Server.HtmlEncode(firstName.Text);

myCommand.Parameters.Add(new SqlParameter(”@lastName”, SqlDbType.NVarChar, 50));

myCommand.Parameters[“@lastName”].Value = Server.HtmlEncode(lastName.Text);

// open database connection

myCommand.Connection.Open();

// execute the query

myCommand.ExecuteNonQuery();

PHP feed into database

$sql  = "INSERT INTO person (username, fname, lname) ";

$sql .= "VALUES ('".$_POST['username']."', '".$_POST['fname']."', '".$_POST['lname']."') ";

mysql_query($sql)or die("cant execute tuatara: $sql");