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1. Print out information of PHP use phpinfo() function. 2. Write a program that check and...

1. Print out information of PHP use phpinfo() function.
2. Write a program that check and print odd / even numbers (from number 1 to 100 using for/while loop). Display the results within an HTML table with 2 columns as shown below:
NUMBERS
RESULTS
1
ODD
2
EVEN
3
ODD
HINT: use <table> tags to create a table, <th> tags for ‘Numbers’ and ‘Results’. Wrap code PHP inside HTML code. For example:
​<html>
​​<title>CHECK ODD or EVEN</title>
​​<body>
​​​<table>
​​​​<?php
​​​​​echo “<tr><td>1</td><td>Odd</td></tr>”;
​​​​?>
​​​</table>
​​</body>
​</html>
3. Do the following steps in one .php file and try to manage the output to be clear to see:
a. Create a dimensional associative array that has at least 8 key/element pairs and var_dump() the array.
b. Print out the array in a table with keys and values (like you do in question 1).
c. Use assort() function to sort the array in ascending order based on the value and var_dump() the new array.
d. Use unset() function to remove an element by key from the array then print the modified array by use var_dump() function. HINT: unset($my_array[‘key’]).
4. Create a two-dimensional array that contains the following information about twitter users:(HINT: the second dimension should be associative, with keys username, tweets, followers, following.) These refer to the number of tweets the user tweeted, how many followers the user has and how many other users this user is following! (The first dimension can be indexed, and you can add Username to the second dimension, or you can have both dimensions be associative, where the Username points to the first person etc. In this case the key joeDoe, for example, has the value array(tweets=>20000,followers=>45,following=>8)
User name
Tweets
Number of Followers
Following
joeDoe
20000
45
8
JohnD
62000
123
160
computerSavy
75
1
25
myTwitterAccount
1800
15
6
a. Print out the array in HTML format using table tags.
b. Sort the array by tweets and print out in table format
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Answer #1

Rate my solution and please do comment if any doubt

I have clearly stated every code and its output

Don't forget to host the file before opening in the browser

1 Code:

<!DOCTYPE html>
<html>
<head>
   <title>PHP info</title>
</head>
<body>
<?php
   phpinfo();  
?>
</body>
</html>

1 Output:

PHP Version 7.3.8 php System Build Date Compiler Architecture Configure Command Server API Virtual Directory Support Configur

2 Code:


<!DOCTYPE html>
<html>
<head>
   <title>CHECK ODD or EVEN</title>
</head>
<body>
   <table border="1">
       <tr>
           <th>NUMBER</th>
           <th>RESULT</th>
       </tr>
       <?php
           //below loop will traverse from 1 to 100
           for($i=1;$i<=100;$i++)
           {
               //If is is divisble by 2 then it is even
               if($i%2==0)
                   echo "<tr>
                           <td>$i</td>
                           <td>EVEN</td>
                       </tr>";
               //If is is not divisble by 2 then it is odd
               else
                   echo"<tr>
                           <td>$i</td>
                           <td>ODD</td>
                       </tr>";
               //here i am printing the row and cells $i and its type(odd or even)
           }
       ?>
   </table>
</body>
</html>

2 Output:

NUMBER RESULT ODD EVEN ODD EVEN ODD EVEN ODD EVEN ODD EVEN ODD EVEN ODD 14 EVEN 15 ODD 16 EVEN ODD EVEN ODD EVEN ODD EVEN ODD

3 Code:

<!DOCTYPE html>
<html>
<head>
   <title></title>
</head>
<body>
<?php
   //$arr is the array declaration with its keys and values
   $arr=array("A"=>4,"B"=>3,"C"=>1,"D"=>2,"E"=>8,"F"=>7,"G"=>6,"H"=>5);
   //var_dump() will define the data type of the keys and values
   var_dump($arr);
   //Table starts here
   echo "<table border='1'>";
   //below is the table heading
   echo "<tr><th>KEY</th><th>VALUE</th></tr>";
   //each key and value is take from $arr and added to the table
   foreach($arr as $x => $x_value)
   {
   echo "<tr><td>$x</td><td>$x_value</td></tr>";
   }
   echo "</table>";
   //The array is sorted based on values
   asort($arr);
   var_dump($arr);
   //var_dump() will define the data type of the keys and values
   echo "<br>";
   //unsetting the value of "B" below will remove "B" from the arry
   unset($arr["B"]);
   var_dump($arr);
   //var_dump() will define the data type of the keys and values
?>

</body>
</html>

3 Output:

array(8) { [A]=> int(4) [B]=> int(3) [C]=> int(1) [D]=> int(2) [E]=> int(8) [F]=> int(7) [G]=> int(0) [H]=> i

4 Code:

<!DOCTYPE html>
<html>
<head>
   <title></title>
</head>
<body>
   <?php
       $arr=array("joeDoe"=>array("tweets"=>20000,"followers"=>45,"following"=>8),
               "JohnD"=>array("tweets"=>62000,"followers"=>123,"following"=>160),
               "computerSavy"=>array("tweets"=>75,"followers"=>1,"following"=>25),
               "myTwitterAccount"=>array("tweets"=>1800,"followers"=>15,"following"=>6)
               );
       //it is the array of users
       //table tag starts here
       echo "<table border='1'>";
       echo "<tr><th>User name</th>
               <th>Tweets</th>
               <th>No. of followers</th>
               <th>Following</th>
               </tr>";
       //table headings are given above
       //below loop will take each element from $arr
       //Key and its value is taken form arr
       foreach ($arr as $key => $value) {
           echo "<tr>
               <td>$key</td>";
               //as the value comtains other info about user
               //we have to traverse through it
               foreach ($value as $s_key => $s_value) {
               echo "<td>$s_value</td>";
               }
           echo "</tr>";
       }
       echo "</table>";
       //asort will sort the array $arr on the basis of the second argument(tweets)
       asort($arr,$arr["joeDoe"]["tweets"]);
       //The same as of above table is printed here
       echo "<h1>Sorted Array:</h1><table border='1'>";
       echo "<tr><th>User name</th>
               <th>Tweets</th>
               <th>No. of followers</th>
               <th>Following</th>
               </tr>";
       foreach ($arr as $key => $value) {
           echo "<tr>
               <td>$key</td>";
               foreach ($value as $s_key => $s_value) {
               echo "<td>$s_value</td>";
               }
           echo "</tr>";
       }
       echo "</table>";
   ?>
</body>
</html>

4 Output:

User name Tweets No. of followers Following joe Doe 20000 45 JohnD 62000 123 160 computerSavy myTwitterAccount 1800 15 75 Sor

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