automatically determined by the PHP interpreter. However, PHP supports 8
(Eight) pieces of primitive data types, namely:
1. boolean
2. integer
3. float
4. string
5. array
6. object
7. resource
8. NULL
PROBLEMS
1. Creating a static variable value to display and save data majors
lat03.php name.
2. Creating a dynamic variable value to display and save data majors
lat04.php name.
1: <? Php
2: $ NIM = "09.12.9999"; 3: $ Name = 'STMIK AMIKOM YOGYAKARTA'; 4: $ Age = 16; 5: $ Value = 82.25; 6: $ Status = TRUE; 7: echo "NIM". $ NIM. "<br>";
8: echo "Name: $ name <br>";
9: print "Age:". $ age; 10: print "<br>";
11: printf ("Value:% .3 f <br>", $ value);
12: if ($ status) 13: echo "Status: Active"; 14: else 15: echo "Status: Not Active"; 16: ?>
Constant
Constant is a variable whose value is fixed. Constant only rated at
beginning of the program and its value is never changed during the program runs.PHP has
defines some constants, eg: PHP_VERSION, ie constant
provide information about the PHP version being used. In addition to constants that have been
provided by the PHP we also can create their own constants. Writing rules
constants are as follows:
define ("nama_konstanta", "nilai_konstanta")
Examples of the use of constants:
Save with the name "Lat05.php" (Constant static value)
1: <html>
2: <head>
3: <title> Using constants </ title>
4: <head>
5: <body>
6: <? Php
7: define ("CAMPUS", "STMIK AMIKOM YOGYAKARTA"); 8: define ("SLOGAN", "COLLEGE PLACE PEOPLE tie"); 9: print "CAMPUS". CAMPUS; 10: echo "<br> SLOGAN:". SLOGAN;
11: ?>
12: </ Body>
13: </ Html>
OPERATOR in PHP
Type Operators Operator Description Example
Arithmetic
+ $ A + $ b Added
- $ A - $ b Reduction
* $ A * $ b Multiplication
/ $ A / $ b Division
% $ A% $ b Modulus, residual distribution
Assignment = $ a = 7; $ a is filled with 4
Bitwise
& $ A & $ b Bitwise AND
| $ A | $ b Bitwise OR
^ $ A ^ $ b Bitwise XOR
~ $ A ~ $ b Bitwise NOT
<<$ A <<$ b Shift Left
>> $ A>> $ b Shift Right
Comparison
== $ A == $ b Same
=== $ A === $ b Identical
! = $ A! = $ B Not Same
<> $ A <> $ b Not Same
! == $ A! == $ B Not identical
<$ A <$ b Less than
> $ A> $ b More than
<= $ A <= $ b Less than equal to
> = $ A> = $ b More than equal to
Logic
and $ a and $ b is TRUE if $ a and $ b TRUE
& & $ A & & $ b is TRUE if $ a and $ b TRUE
or $ a or $ b is TRUE if $ a or $ b is TRUE
| | $ A | | $ b True if $ a and / or $ b is TRUE
xor $ a xor $ b is TRUE if $ a or $ b is TRUE, but
not both
! ! $ A TRUE if $ a is FALSE
String. $ A. $ B Merging strings $ a and $ b
Save with the name operator.php
1: <? Php
2: $ Salary = 1000000; 3: $ Tax = 0.1; 4: $ THP = $ salary - ($ salary * $ tax); 5: echo "salary before tax = USD. $ salaries <br>";
6: echo "The salary taken home = Rp. $ THP"; 7: ?>
Save with the name operator2.php
1: <? Php
2: $ A = 5; 3: $ B = 4; 4: echo "$ a == $ b:". ($ A == $ b); 5: echo "<br> $ a! = $ b:". ($ A! = $ B);
6: echo "<br> $ a> $ b:". ($ A> $ b);
7: echo "<br> $ a <$ b:". ($ A <$ b);
8: echo "<br> ($ a == $ b) & & ($ a> $ b): ".(($ a! = $ b) & & ($ a> $ b));
9: echo "<br> ($ a == $ b) | | ($ a> $ b): ".(($ a! = $ b) | | ($ a> $ b));
10: ?>
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