ASP (VBScript)
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PHP (v4.3+)
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General syntax |
- ASP Comments, inline
'my dog has fleas
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- PHP Comments, inline
//my dog has fleas
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- ASP Comments, block
not available?
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- PHP Comments, block
/* The quick brown fox jumped over the lazy dogs. */
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- ASP, Escaping quotes
"" "var text1=""<img src=\""blank.gif\"">"";"
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- PHP, Escaping quotes
\" or use ' like javascript 'var text1="<img src=\"blank.gif\">";';
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- ASP Command termination
None, but : can be used to separate commands on the same line.
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- PHP Command termination
Each command must end with ; but multiple commands per line are allowed.
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- ASP Screen output
response.write "hello"
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- PHP Screen output
echo "hello";
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- ASP Newline characters
vbCrLf response.write "hello" & vbCrLf
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- PHP Newline characters
"\n" (must be inside "", not '') echo "hello \n";
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- ASP Variable Names
Not case sensitive, so fName is the same as FNAME
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- PHP Variable Names
Case sensitive AND must begin with $ so $fName is NOT the same as $FNAME
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String Functions |
- ASP String concatenation
& fname=name1 & " " & name2 emsg=emsg & "error!"
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- PHP String concatenation
. and .= $fname=$name1." ".$name2; $emsg.="error!";
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- ASP, Change case
LCase(), UCase() lowerName=LCase(chatName) upperName=UCase(chatName)
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- PHP, Change case
strtolower(), strtoupper() $lowerName=strtolower($chatName); $upperName=strtoupper($chatName);
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- ASP String length
Len() n=Len(chatName)
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- PHP String length
strlen() $n=strlen($chatName);
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- ASP, Trim whitespace
Trim() temp=Trim(xpage)
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- PHP, Trim whitespace
trim() and also ltrim(), rtrim() $temp=trim($xpage);
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- 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"
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- 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"
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- ASP String search forward, reverse
Instr(), InstrRev()
x=Instr("abcdef","de") x=4 x=InstrRev("alabama","a") x=7
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- PHP String search forward, reverse
strpos(), strrpos()
$x=strpos("abcdef","de"); x=3 $x=strrpos("alabama","a"); x=6
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- ASP String replace
Replace(string exp,search,replace) temp=Replace(temp,"orange","apple") temp=Replace(temp,"'","\'") temp=Replace(temp,"""","\""")
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- PHP String replace
str_replace(search,replace,string exp) $temp=str_replace("orange","apple",$temp); $temp=str_replace("'","\\'",$temp); $temp=str_replace("\"","\\\"",$temp);
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- ASP, split a string into an array
Split()
temp="cows,horses,chickens" farm=Split(temp,",",-1,1) x=farm(0)
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- PHP, split a string into an array
explode()
$temp="cows,horses,chickens"; $farm=explode(",",$temp); $x=$farm[0];
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- ASP, convert ASCII to String
x=Chr(65) x="A"
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- PHP, convert ASCII to String
$x=chr(65); x="A"
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- ASP, convert String to ASCII
x=Asc("A") x=65
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- PHP, convert String to ASCII
$x=ord("A") x=65
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Control Structures |
- ASP, if statements
if x=100 then x=x+5 elseif x<200 then x=x+2 else x=x+1 end if
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- PHP, if statements
if ($x==100) { $x=$x+5; } else if ($x<200) { $x=$x+2; } else { $x++; }
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- ASP, for loops
for x=0 to 100 step 2 if x>p then exit for next
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- PHP, for loops
for ($x=0; $x<=100; $x+=2) { if ($x>$p) {break;} }
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- ASP, while loops
do while x<100 x=x+1 if x>p then exit do loop
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- PHP, while loops
while ($x<100) { $x++; if ($x>$p) {break;} }
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- ASP, branching
select case chartName case "TopSales" theTitle="Best Sellers" theClass="S" case "TopSingles" theTitle="Singles Chart" theClass="S" case "TopAlbums" theTitle="Album Chart" theClass="A" case else theTitle="Not Found" end select
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- PHP, branching
switch ($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: $theTitle="Not Found"; }
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- ASP functions
Function myFunction(x) myFunction = x*16 'Return value End Function
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- PHP functions
function myFunction($x) { return $x*16; //Return value }
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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")
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- PHP, Server variables
$_SERVER["HTTP_HOST"]; $_SERVER["PHP_SELF"]; $_SERVER["HTTP_USER_AGENT"]; $_SERVER["REMOTE_ADDR"]; @$_SERVER["HTTP_REFERER"]; @ = ignore errors
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- ASP Page redirects
Response.redirect("wrong_link.htm")
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- PHP Page redirects
header("Location: wrong_link.htm");
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- ASP, GET and POST variables
Request.QueryString("chat") Request.Form("username")
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- PHP, GET and POST variables
@$_GET["chat"]; @ = ignore errors @$_POST["username"];
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- ASP, prevent page caching
Response.CacheControl="no-cache" Response.AddHeader "pragma","no-cache"
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- PHP, prevent page caching
header("Cache-Control: no-store, no-cache"); header("Pragma: no-cache");
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- ASP, Limit script execution time, in seconds
Server.ScriptTimeout(240)
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- PHP, Limit script execution time, in seconds
set_time_limit(240);
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- ASP, Timing script execution
s_t=timer
...ASP script to be timed...
duration=timer-s_t response.write duration &" seconds"
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- 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; }
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File System Functions |
- ASP, create a file system object (second line is wrapped)
'Required for all file system functions fileObj=Server.CreateObject ("Scripting.FileSystemObject")
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- PHP, create a file system object
Not necessary in PHP
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- ASP, check if a file exists
pFile="data.txt" fileObj.FileExists(Server.MapPath(pFile))
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- PHP, check if a file exists
$pFile="data.txt"; file_exists($pFile);
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- 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
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- PHP, Read a text file
$pFile="data.txt"; $temp=file_get_contents($pFile); //Read file
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Time and Date Functions |
- ASP, Server Time or Date
Now, Date, Time
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- PHP, Server Time or Date
date()
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- ASP, Date format (default)
Now = 7/2/2012 4:21:51 AM Date = 7/2/2012 Time = 4:21:51 AM Various ASP functions extract date parts:
Month(Date) = 7 MonthName(Month(Date)) = July Day(Date) = 2 WeekdayName(Weekday(Date)) = Monday WeekdayName(Weekday(Date),False) = Mon
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- 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") = 7/2/2012 4:21:51 AM
date("n") = 7 date("F") = July date("j") = 2 date("l") = Monday date("D") = Mon
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Numeric Functions |
- ASP, convert decimal to integer
Int() n=Int(x)
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- PHP, convert decimal to integer
floor() $n=floor($x);
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- ASP, determine if a value is numeric
IsNumeric() if IsNumeric(n) then ...
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- PHP, determine if a value is numeric
is_numeric() if (is_numeric($num)) {...}
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- ASP, modulus function
x mod y
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- PHP, modulus function
$x % $y
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