//Logical Operator

Logical Operator

1.  <?php
2.  //Logical Operator
3. $a = 50;
4. $b = 30;
5. 
   
6. //Logical AND
7. //we use also  Logical NOT
8. if (!(($a > $b) && ($a != $b))) // !(a=50 > b=30) is False && (a=50 != b=30) is True; Therefore this statement is False.
9.                                // when both statement are True then result will be True.
10.                               // '!'not is True statement consider False and False statement consider to True.
11. {
12. echo "this statement is true <br>";
13. } else {
14. echo "this is statement is false <br>";
15. }
16. 
    
17. //Logical OR
18. if (($a < $b) || ($a != $b)) // (a=50 < b=30) is False || (a=50 != b=30) is True; therefore this statement is True.
19.                         //if one(or both) statement is True then result will be True, Otherwise it returns False.
20. {
21. echo "this staement is true <br>"; //"echo" use for print line.
22. } else {
23. echo "this staement is false <br>"; //"<br>" use for linebreak.
24. }
25. ?>

//Execute

//Output

/*

//Logical AND

First statement is false

//Logical OR

Second statement is true

*/

                                                                                            //ThE ProFessoR