11. Write a program in PHP to add three numbers.
<!doctype html> <html> <head> <title>Year : 2015 | Q : 11</title> </head> <body> <?php $sum = 0; if(isset($_POST['add'])) $sum = $_POST['n1']+$_POST['n2']+$_POST['n3']; ?> <form method = 'post'> Number 1: <input type = 'number' name = 'n1' value = '0'><br> Number 2: <input type = 'number' name = 'n2' value = '0'><br> Number 3: <input type = 'number' name = 'n3' value = '0'><br> <input type = 'submit' name = 'add' value = 'Add'> <input type = 'number' name = 'res' value = '<?php echo $sum;?>' disabled> </form> </body> </html>
12. Write a program to display the first and last character of a string.
<!doctype html> <html> <head> <title>Year : 2015 | Q : 12</title> </head> <body> <?php $str = 'My name is something'; echo "Given string: '".$str."'.<br>"; echo "First character of the string is : '".substr($str,0,1)."', and the last character of the string is: '".substr($str,strlen($str)-1)."'."; ?> </body> </html>
13. Create two integer arrays of size 5 each with data in them. Then display sum of all the numbers of both arrays.
<!doctype html> <html> <head> <title>Year : 2015 | Q : 13</title> </head> <body> <?php function sumarr($arr) { $sum = 0; foreach($arr as $data) $sum+=$data; return $sum; } function disarr($arr) { foreach($arr as $data) echo " $data "; } $a1 = array(5,10,15,20,25); $a2 = array(1,2,3,4,5); echo "<br>First array: "; disarr($a1); echo "<br>Sum of the first array: ".sumarr($a1); echo "<br>Second array: "; disarr($a2); echo "<br>Sum of the second array: ".sumarr($a2); ?> </body> </html>
14. Write a program in PHP to store “coding in PHP” in a file named “coding.txt”.
<!doctype html> <html> <head> <title>Year : 2015 | Q : 14</title> </head> <body> <?php $str = 'coding in PHP'; $f = fopen('coding.txt','w'); if(fwrite($f,$str)) echo "Successfully wrote 'coding in PHP' in the file named 'coding.txt'."; else echo "Error in writing 'coding in PHP' in the file named 'coding.txt'."; fclose($f); ?> </body> </html>
15. Make the following table using PHP.
Name | Age | Gender |
R | 2 | M |
A | 20 | F |
<!doctype html> <html> <head> <title>Year : 2015 | Q : 15</title> <style> td{ width: 75px; } </style> </head> <body> <?php $arr = array(array('R',21,'M'),array('A',20,'F')); echo "<table border = '1' cellspacing = '0' cellpadding = '10'>"; echo "<tr align = 'left'> <td>Name</td> <td>Age</td> <td>Gender</td> </tr>"; foreach($arr as $data) { echo "<tr align = 'left'>"; echo "<td>".$data[0]."</td>";//Name echo "<td>".$data[1]."</td>";//Age echo "<td>".$data[2]."</td>";//Gender echo "</tr>"; } ?> </body> </html>