Powerpoint Templates Page 1 Powerpoint Templates Server Side Scripting PHP.
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Powerpoint Templates Page 1 Powerpoint Templates Server Side Scripting PHP
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Transcript of Powerpoint Templates Page 1 Powerpoint Templates Server Side Scripting PHP.
Powerpoint TemplatesPage 1
Powerpoint Templates
Server Side Scripting
PHP
Powerpoint TemplatesPage 3
The Variable Name• start with the “$” characters• Variable names can consist of characters,
numbers and underscore “_”• after the “$” character, must be followed
or the underscore character "_“• are case sensitive
Example. • $_name• $first_name• $name3• $lastName• global $_name Æ variabel global
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example for using variable
<html><head><title> Use Variable </title></head>
<body><?php
$Name = "Muhammad";$NAME = "Zein";$name = "Zidane";
echo "$Name $NAME $name";?></body></html>
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Indirect Variable References
• Variables that are named from the contents of other variables.
• Created when the script is executed (runtime).
Example.$name = "Jhon";$$name = “Registered User";
Result
Registered User
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Predefinied Variable
• The name of variable has been used by PHP.• Some Predefined Variable :
$GLOBAL → Refers to all global variables. $_SERVER → server environment configuration
information. $_GET → The Variable of GET. $_POST → The Variable of HTTP POST. $_FILES → The Variable of HTTP File Upload. $_REQUEST → The Variable of HTTP Request. $_SESSION → The Variable of Session $_COOKIE → The Variable of HTTP Cookie. $php_errormsg → last error message. $http_response_header → response from the HTTP
Header reques
* Superglobals: global variables that include a script file, without having to define global $ variable.
Super Global *
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Predefinied Variable
$GLOBAL
• Referring to the global variables in a script.
• Array data type.
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Predefined Variable $_SERVER
• Contains the value associated with server information.
• Array data type.• Complete documentation: http://
www.php.net/manual/en/reserved.variables.server.php
Example :
Results :
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Predefined Variable
$_GET• Variables from URL parameters.• Array data type.
Example :
Create a file with the name predefined_get.php
Access that files in the browser and add the parameter
http://localhost/predefined_get.php?name=Tom
Results :
Selamat Datang Tom
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Predefined Variable $_POST
• Variables derived from the HTTP POST.• Array data type.• Application in HTML Form
Value Properti “name” input elements, to index arrays $_POST
Example, file : form.php
Example, file : input.php
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Predefined Variable $_FILES
• Variables containing items, uploaded via HTTP POST method.
• 2-dimensional array of data types• Index Variable $_FILES :
$_FILES[‘foto’][‘name’] → Name of the original file on the client computer.
$_FILES[‘foto’][‘type’] → mime type. Ex : image/gif
$_FILES[‘foto’][‘size’] → file size in byte $_FILES[‘foto’][‘ $_FILES[‘foto’][‘tmp_name’] → Name of the
temporary file that is stored on a server uploaded $_FILES[‘foto’][‘error’] → Error code that
occurred when uploading
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Predefined Variable
$_COOKIE• Variables derived from HTTP Cookies.• array data type
Set cookies on your browser:• setcookie(name, value, expire,
path, domain, secure, httponly)• http://www.php.net/manual/en/
function.setcookie.php
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Predefined Variable
$_SESSION• Variable deriver from session• Array type data
Using Session in PHP
• session_start()• $_SESSION[‘name’]• session_unset()• session_destroy()• http://www.php.net/manual/en/ref.session.php
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Predefined Variable
$_REQUEST• Contains the value of $_GET,
$_POST, dan $_COOKIE• array data type
$php_errormsg• String Type Data
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PHP supported by 8 data type.
scalar :• Boolean• Integer• Floating-point• String
Compound• Array• Object
Khusus• Resources• Null
TIPE DATA
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Example
1. Boolean
<html>
<head>
<title> Nilai Boolean </title>
</head>
<body>
<h1> Contoh Nilai Boolean </h1>
<pre>
$a = TRUE;
$b = FALSE;
</pre>
Hasil Eksekusi dengan PHP : <br>
<?php$a = TRUE;$b = FALSE;echo "\$a = $a"."<br>";echo "\$b = $b";
?>
</body></html>
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2. Integer
<html><head><title> Integer</title></head>
<Body><h1>Integer </h1><?php
$Harga = 15000;$Jumlah = 5;$HargaTotal = $Harga *
$Jumlah;
echo "Harga = $Harga"."<br>";echo "Jumlah = $Jumlah"."<br>";echo "Harga Total =
$HargaTotal"."<br><br>";
$large_number = 2147483647;var_dump ($large_number);echo "<br>";$large_number = 2147483648;var_dump ($large_number);echo "<br>";var_dump ( 0x80000000 );echo "<br>";$million = 1000000;$large_number = 50000 *
$million;var_dump ($large_number);
?></body></html>
