Alepsh Loriya

Web Developer and Demandware development Consultant 

ASP / PHP Cross Reference

Posted by alpeshloriya on August 29, 2009 at 6:00 AM

ASP (VBScript)


PHP (v4.3+)


General syntax

ASP Comments, inline 'my dog has fleas PHP Comments, inline //my dog has fleas
ASP Comments, block
not available?
PHP Comments, block /*
  The quick brown fox
  jumped over the lazy dogs.
*/
ASP, Escaping quotes ""

"var text1=""<img src=\""blank.gif\"">"";"
PHP, Escaping quotes \" or use ' like javascript

'var text1="<img src=\"blank.gif\">";';
ASP Command termination None, but : can be used to separate commands
on the same line.
PHP Command termination Each command must end with ; but
multiple commands per line are allowed.
ASP Screen output response.write "hello"
PHP Screen output echo "hello";
ASP Newline characters vbCrLf

response.write "hello" & vbCrLf
PHP Newline characters "\n" (must be inside "", not '')

echo "hello \n";
ASP Variable Names Not case sensitive,
so fName is the same as FNAME
PHP Variable Names Case sensitive AND must begin with $
so $fName is NOT the same as $FNAME

String Functions

ASP String concatenation &

fname=name1 & " " & name2
emsg=emsg & "error!"
PHP String concatenation . and .=

$fname=$name1." ".$name2;
$emsg.="error!";
ASP, Change case LCase(), UCase()

lowerName=LCase(chatName)
upperName=UCase(chatName)
PHP, Change case strtolower(), strtoupper()

$lowerName=strtolower($chatName);
$upperName=strtoupper($chatName);
ASP String length Len()

n=Len(chatName)
PHP String length strlen()

$n=strlen($chatName);
ASP, Trim whitespace Trim()

temp=Trim(xpage)
PHP, Trim whitespace trim() and also ltrim(), rtrim()

$temp=trim($xpage);
ASP String sections
Left(), Right(), Mid()

Left("abcdef",3) result = "abc"
Right("abcdef",2) result = "ef"
Mid("abcdef",3) result = "cdef"
Mid("abcdef",2,4) result = "bcde"
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"
ASP String search forward, reverse
Instr(), InstrRev()

x=Instr("abcdef","de") x=4
x=InstrRev("alabama","a") x=7
PHP String search forward, reverse
strpos(), strrpos()

$x=strpos("abcdef","de"); x=3
$x=strrpos("alabama","a"); x=6
ASP String replace Replace(string exp,search,replace)

temp=Replace(temp,"orange","apple")
temp=Replace(temp,"'","\'")
temp=Replace(temp,"""","\""")
PHP String replace str_replace(search,replace,string exp)

$temp=str_replace("orange","apple",$temp); $temp=str_replace("'","\\'",$temp);
$temp=str_replace("\"","\\\"",$temp);
ASP, split a string into an array
Split()

temp="cows,horses,chickens"
farm=Split(temp,",",-1,1)
x=farm(0)
PHP, split a string into an array
explode()

$temp="cows,horses,chickens";
$farm=explode(",",$temp);
$x=$farm[0];
ASP, convert ASCII to String x=Chr(65) x="A"
PHP, convert ASCII to String $x=chr(65); x="A"
ASP, convert String to ASCII x=Asc("A") x=65
PHP, convert String to ASCII $x=ord("A") x=65

Control Structures

ASP, if statements
if x=100 then
x=x+5
elseif x<200 then
x=x+2
else
x=x+1
end if
PHP, if statements
if ($x==100) { 
$x=$x+5;
}
else if ($x<200) {
$x=$x+2;
}
else {
$x++;
}
ASP, for loops
for x=0 to 100 step 2 
if x>p then exit for
next
PHP, for loops
for ($x=0; $x<=100; $x+=2) { 
if ($x>$p) {break;}
}
ASP, while loops
do while x<100 
x=x+1
if x>p then exit do
loop
PHP, while loops
while ($x<100) { 
$x++;
if ($x>$p) {break;}
}
ASP, branching
select case chartName
case "TopSales"
theTitle="Best Sellers"
theClass="S"
case "TopSingles"
theTitle="Singles Chart"
theClass="S"
case "TopAlbums"
theTitle="Album Chart"
theClass="A"
case else
theTitle="Not Found"
end select
PHP, branching
switch ($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:
$theTitle="Not Found";
}
ASP functions
Function myFunction(x)
myFunction = x*16 'Return value
End Function
PHP functions
function myFunction($x) {
return $x*16; //Return value
}

HTTP Environment

ASP, Server variables
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"]; @ = ignore errors
ASP Page redirects Response.redirect("wrong_link.htm")
PHP Page redirects header("Location: wrong_link.htm");
ASP, GET and POST variables Request.QueryString("chat")
Request.Form("username")
PHP, GET and POST variables @$_GET["chat"];       @ = ignore errors
@$_POST["username"];
ASP, prevent page caching Response.CacheControl="no-cache"
Response.AddHeader "pragma","no-cache"
PHP, prevent page caching header("Cache-Control: no-store, no-cache");
header("Pragma: no-cache");
ASP, Limit script execution time, in seconds Server.ScriptTimeout(240)
PHP, Limit script execution time, in seconds set_time_limit(240);
ASP, Timing script execution
s_t=timer 

...ASP script to be timed...

duration=timer-s_t
response.write duration &" seconds"
PHP, Timing script execution
$s_t=microtime();

...PHP script to be timed...

$duration=microtime_diff($s_t,microtime());
$duration=sprintf("%0.3f",$duration);
echo $duration." seconds";

//required function
function microtime_diff($a,$b) {
list($a_dec,$a_sec)=explode(" ",$a);
list($b_dec,$b_sec)=explode(" ",$b);
return $b_sec-$a_sec+$b_dec-$a_dec;
}

File System Functions

ASP, create a file system object (second line is wrapped) 'Required for all file system functions
fileObj=Server.CreateObject
 ("Scripting.FileSystemObject")
PHP, create a file system object Not necessary in PHP
ASP, 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);
ASP, 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

Time and Date Functions

ASP, Server Time or Date Now, Date, Time
PHP, Server Time or Date date()
ASP, Date format (default) Now = 8/29/2009 4:59:26 AM
Date = 8/29/2009
Time = 4:59:26 AM

Various ASP functions extract date parts:

Month(Date) = 8
MonthName(Month(Date)) = August
Day(Date) = 29
WeekdayName(Weekday(Date)) = Saturday
WeekdayName(Weekday(Date),False) = Sat
PHP, Date format There is no default format in PHP.
The date() function is formatted using codes:

date("n/j/Y g:i:s A") = 8/29/2009 4:59:26 AM

date("n") = 8
date("F") = August
date("j") = 29
date("l") = Saturday
date("D") = Sat

Numeric Functions

ASP, convert decimal to integer Int()

n=Int(x)
PHP, convert decimal to integer floor()

$n=floor($x);
ASP, determine if a value is numeric IsNumeric()

if IsNumeric(n) then ...
PHP, determine if a value is numeric is_numeric()

if (is_numeric($num)) {...}
ASP, modulus function x mod y
PHP, modulus function $x % $y

Categories: Programming SCRIPTS

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