Manjeet Kashyap Blog

Sunday, 17 December 2017

Disable Admin Bar in wordpress.

Paste this code in your theme’s functions.php file

add_action('after_setup_theme', 'remove_admin_bar');

function remove_admin_bar() {

if (!current_user_can('administrator') && !is_admin()) {

  show_admin_bar(false);

}

}

If you want to disable it for all users, then simply put use this code in your theme’s functions.php file

  show_admin_bar(false);

Sunday, 30 July 2017

Use htmlentities with the correct characterset option

$value = htmlentities($this->value , ENT_QUOTES , 'UTF-8');

Difference Between Comparison Operators in php.

If you use strpos() to determine whether a substring exists within a string (it returns FALSE

<?php
 
$authors = 'Chris & Sean';
 
if (strpos($authors, 'Chris')) {
    echo 'Chris is an author.';
} else {
    echo 'Chris is not an author.';
}
 
?>

Friday, 28 July 2017

Logical Operators Example

   <?php
         $a = 42;
         $b = 0;
         
         if( $a && $b ) {
            echo "TEST1 : Both a and b are true<br/>";
         }else{
            echo "TEST1 : Either a or b is false<br/>";
         }
         
         if( $a and $b ) {
            echo "TEST2 : Both a and b are true<br/>";
         }else{
            echo "TEST2 : Either a or b is false<br/>";
         }
         
         if( $a || $b ) {
            echo "TEST3 : Either a or b is true<br/>";
         }else{
            echo "TEST3 : Both a and b are false<br/>";
         }
         
         if( $a or $b ) {
            echo "TEST4 : Either a or b is true<br/>";
         }else {
            echo "TEST4 : Both a and b are false<br/>";
         }
         
         $a = 10;
         $b = 20;
         
         if( $a ) {
            echo "TEST5 : a is true <br/>";
         }else {
            echo "TEST5 : a  is false<br/>";
         }
         
         if( $b ) {
            echo "TEST6 : b is true <br/>";
         }else {
            echo "TEST6 : b  is false<br/>";
         }
         
         if( !$a ) {
            echo "TEST7 : a is true <br/>";
         }else {
            echo "TEST7 : a  is false<br/>";
         }
         
         if( !$b ) {
            echo "TEST8 : b is true <br/>";
         }else {
            echo "TEST8 : b  is false<br/>";
         }
      ?>

This will produce the following result −

TEST1 : Either a or b is false
TEST2 : Either a or b is false
TEST3 : Either a or b is true
TEST4 : Either a or b is true
TEST5 : a is true
TEST6 : b is true
TEST7 : a is false
TEST8 : b is false

How to print following number table:

How to print following number table:

<table width="270px" cellspacing="0px" cellpadding="0px" border="1px">



<?php

//$a = 1;

for($row=1;$row<=10;$row++)

{

echo "<tr>";

for($col=1;$col<=10;$col++)

{

echo "<td>" .($col * $row). "</td>";

}

//$a++;

echo "</tr>";

}

?>

</table>

Write a program to make a chess:

Write a program to make a chess:

Program to print below format...

(1) Program to print below format
*
* *
* * *
* * * *
* * * * *
* * * * * *
* * * * * * *
* * * * * * * *
* * * * * * * * *

<?php

   $rows=5; // number of row
      for($i=1;$i<=$rows;$i++)
        {
 
           for($j=1;$j<=$i;$j++)
              {
                echo "*";
              }
            echo "<br />";
        }

?>

(2 ) Write a program to print the below format :
1 5 9
2 6 10
3 7 11
4 8 12

<?php

for($i=1;$i<=4;$i++)
{
$i1=$i+4;
$i2=$i+8;
echo $i." ".$i1." ".$i2;
echo "<br />";
}

?>

(3) Write a program for this Pattern:

*****
*      *
*      *
*      *
*****

<?php
for($i = 1; $i<=5; $i++){
for($j = 1; $j<=5; $j++){
if($i == 1 || $i == 5){
echo "*";
}
else if($j == 1 || $j == 5){
echo "*";
}
else {
echo "  ";
}

}
echo "<br/>";
}
?>

Program to print below format..

Program to print below format.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7
1 2 3 4 5 6
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1

<?php
   $rows=5;  // number of row
   for($i=$rows;$i>=1;--$i)
     {
         for($j=1;$j<=$i;++$j)
         {
            echo $j;
         }
     echo "<br />";
     }
 ?>

Program to print the below format.

Program to print the below format
* * * * * * * * * * * * * * *
* * * * * * * * * * * * *
* * * * * * * * * * *
* * * * * * * * *
* * * * * * *
* * * * *
* * *
*

<?php

   $rows=5;  // number of row enter.
   for($i=$rows;$i>=1;--$i)
     {
         for($space=0;$space<$rows-$i;++$space)
            echo "  ";
         for($j=$i;$j<=2*$i-1;++$j)
           echo "* ";
         for($j=0;$j<$i-1;++$j)
             echo "* ";
         echo "<br />";
     }

Program to find year is LEAP year or not.

<?php
    $year=2017;
    if($year%4==0)
          {
            $leap="It is a leap year";
          }
      else
         {
           $leap="It is not a leap year";
        }
 ?>