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Source: phpdeveloperatlanta.com.

This is the continuation on the Steps on How to Program in PHP: A Beginner’s Guide on PHP Programming. If you did not read it yet, please read it first to understand this hub better.

This hub would tackle about:

1. Learning the Different PHP Operators

-Arithmetic Operators

-Assignment Operators

-Logical Operators

-Comparison Operators

2. Learning How to Make PHP Conditional Statements Using If and Else Statements

-if statement

-if-else statement

-if, else-if statement

-switch statement

Learning the Different PHP Operators

There are four groups of PHP Operators, the Arithmetic Operators, Assignment Operators, Comparison Operators and Logical Operators.

Arithmetic Operators:

Arithmetic operators are used for arithmetic calculations, for example getting the sum, difference, the product of the numbers, its quotient, or its remainders. Arithmetic operators has also increment and decrement operators which increment the value by 1 or decrement it by 1.

List of operators:

Operators
Description
+
For Addition
–
For Subtraction
*
For Mulitplication
/
For Division
%
For Remaiders
++
Increment 1
—
Decrement 1

Assignment Operators:

Assignment operators are used to assign the value on the left side to the variable on the right side.

Example: a = b, meaning a gets the value of b. So, whatever the value of b is, that would be the value of a.

Lists of Operators:

Operators
Examples
+=
a+=b or a=a+b
-=
a-=b or a=a-b
*=
a*=b or a=a*b
/=
a/=b or a=a/b
%=
a%=b or a=a%b
.=
a.=b or a=a.b
=
a=b

Logical Operators:

Logical operators are used for conditional statements. for && operator, if the value of the variable is equal to the instantiated value, then the statement would return true, otherwise it would return false.

List of Operators:

Operators
Description
Example
&&
and operator
a=1 b=3, a==1 && b==3, return true
|| Operator
or operator
a=1 b=3, a>5 || b<5, return true ! Operator not operator a=1 b=3 !(a==b), return true

Comparison Operators:

Comparison operators are used to compare to set of numbers. It return true of the statement is correct, otherwise, it would return false. Most of the comparison operators are being use in the conditional statements like if and else as well as in switch statements.

Operators
Description
==
equal to
>=
greater than equal to
<= less than equal to != not equal to >
greater than to
< less than to See all 3 photos Source:lonewolflibrarian.wordpress.com

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Learning How to Make PHP Conditional Statement

There are four kinds of conditional statements in PHP. The “if” statement, “if and else” statement, “if, else if,…,else” statement and switch statement.

If statement is used to execute a block of codes if the condition is being met.

Syntax:

if(condition)

{

…code here

}

See PHP Code Example on if statement

If and else statement is used if the program needs to do another thing after the condition on the if statement is not met.

Syntax:

if(condition)

{

…code here

}

else

{

…code here

}

See PHP Code Example on If-Else Statement

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See all 3 photos
Source:kibogoji.com via google image

If, else if,…, else statement is used if there are many instances or conditions to be made in the program. You can make conditions on the first “if” and all the following “else if” and end it with “else” statement, which the codes are executed if the conditions of if and else if’s are not true.

Syntax:

if(condition)

{

…code here

}

else if(condition)

{

…code here

}

else if(condition)

{

…code here

}

else

{

…code here

}

Note: You can make many else if statements until the necessity of your program is met.

See Php code example on if, else-if statement

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The Switch Statement in PHP

Switch Statement is used if you want to select a block code to be executed as the program is running. Usually the program used switch statement if it provides the user a menu to select on.

Syntax:

switch(input)

{

Case 1:

…code here

Break;

Case 2:

…code here

Break;

Default:

…code here

}

Note: default is used if the “answer” is not on the provided cases.

See PHP Code Example on Switch Statement

The Part 3 of this tutorial for beginners will contain:

-PHP Loops and Source Codes Sample

-PHP Arrays and Source Codes Sample

-PHP Functions and Source Codes Sample

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Other PHP Code Examples and Tutorials

How to become a PHP Developer: Learn and Earn
How to run PHP Code or PHP Scripts and See the Result on Your Browser
PHP Sample Codes On Function:How to make Function in PHP
HTML Basics: Learn The Basics of HTML and Create Your Own Webpage on Your Browser
PHP Code Example on Associative Array and Multidimensional Array
PHP code Example for if statement
PHP Code Example for if-else Statement
PHP Code Example on if else-if Statement
PHP Code Example on Switch Statement
PHP Code Example on While Loop
PHP Code Example on Numeric Array
PHP Code Example on Do-while Loop
PHP Code Example on Foreach Loop and For Loop