PHP PROGRAMS
Q1) WRITE A PHP PROGRAM TO READ A DIRECTORY NAME AND EXTENSION FROM USER DISPLAY THE FILES WITH SPECIFIED EXTENSION FROM THAT DIRECTORY.
-->
<html>
<body>
<form action="directoryextension.php" method="GET">
Enter Directory name:<input type="text" name="directory"><br>
<br>Enter Extension with dot(.):<input type="text" name="extension"><br>
<br><input type="submit">
</form>
</body>
</html>
<?php
$directory=$_GET['directory'];
$extension=$_GET['extension'];
if(!is_dir($directory))
{
die("Invalid Directory Name: $directory");
}
$handle=opendir($directory);
echo "<br>Displaying files with extension: $extension";
$cnt=1;
while(($filename=readdir($handle))!==false)
{
if(strstr($filename,$extension))
{
echo "<br>$cnt:$filename";
$cnt++;
}
}
closedir($handle);
?>
OUTPUT -
Enter Directory name:
Enter Extension with dot(.):
Q2) WRITE A PHP PROGRAM TO READ FILE "STUDENT.DAT" THAT HAS STUDENT DETAILS AS ROLLNO, NAME, M1,M2,M3 AS MARKS OF 3 SUBJECTS. DISPLAY THE DATA FROM THE FILE IN TABULAR FORMAT. ALSO DISPLAY TOTAL AND PERCENTAGE OF EACH STUDENT.
-->
STUDENT.DAT FILE
1 abhilash 60 78 89
2 shubham 70 89 87
3 sanket 89 96 92
<?php
$fp=fopen("student.dat","r");
echo "<h2>STUDENT INFORMATION</h2><br>";
echo "<table border=1>";
echo "<tr>";
echo "<td><b>Rollno</b></td><td><b>Name</b></td><td><b>Mark1</b></td><td><b>Mark2</b></td><td><b>Mark3</b></td><td><b>Total</b></td><td><b>Percentage</b></td>";
echo "</tr>";
while($data=fscanf($fp,"%d\t%s\t%d\t%d\t%d\n"))
{
list($rno,$name,$m1,$m2,$m3)=$data;
$total=($m1+$m2+$m3);
$per=$total/3;
echo "<tr>";
echo "<td>$rno</td><td>$name</td><td>$m1</td><td>$m2</td><td>$m3</td><td>$total</td><td>$per</td>";
echo "</tr>";
}
echo "</table>";
?>
Q3) WRITE A PHP PROGRAM TO READ TWO FILE NAMES FROM USER AND APPEND CONTENT OF FIRST FILE INTO SECOND FILE.
-->
<html>
<body>
<form action="appendfile.php" method="POST">
Enter First File:<input type="text" name="first"><br><br>
Enter Second File:<input type="text" name="second"><br><br>
<input type="submit">
</form>
</body>
</html>
<?php
$first=$_POST['first'];
$second=$_POST['second'];
if(!file_exists($first))
{
die("<br>$first does not exist");
}
if(!file_exists($second))
{
die("<br>$second does not exist");
}
$fp1=fopen($first,'r') or die("unable to open first file");
$fp2=fopen($second,'a') or die("unable to open second file");
$data=fread($fp1,filesize($first));
fwrite($fp2,$data);
fclose($fp1);
fclose($fp2);
echo "<h2>Contents of first file is appanded to second file</h2>";
?>
OUTPUT -
Enter First File:
Enter Second File:
Enter Second File:
Q4) FILE OPEN PROGRAM
-->
<?php
$myfile = fopen("FILE.txt", "r") or die("Unable to open file!");
echo fread($myfile,filesize("FILE.txt"));
fclose($myfile);
?>
Q5) FILE WRITE PROGRAM
-->
<?php
$myfile = fopen("newfile.txt", "w") or die("Unable to open file!");
$txt = "SALMAN\n";
fwrite($myfile, $txt);
$txt = "SALMAN\n";
fwrite($myfile, $txt);
fclose($myfile);
?>
OUTPUT -
SALMAN
SALMAN
Q6) WRITE A PROGRAM TO OVERRIDE A FILE.
-->
<?php
$myfile = fopen("newfile.txt", "w") or die("Unable to open file!");
$txt = "SALMAN KHAN\n";
fwrite($myfile, $txt);
$txt = "SALMAN NAIK\n";
fwrite($myfile, $txt);
fclose($myfile);
?>
OUTPUT -
SALMAN KHAN
SALMAN NAIK
Q7)WRITE A MENU DRIVEN PROGRAM TO PERFORM VARIOUS FILE OPERATION. ACCEPT FILOE NAME FROM USER.
a)DISPLAY TYPE OF FILE.
b)DELETE A FILE.
-->
<html>
<body>
<form action="fileoperations.php" method="POST">
Enter FileName:<input type="text" name="name"><br><br>
<input type="radio" value="1" name="option">Display the type of the file<br><br>
<input type="radio" value="2" name="option">Delete the file<br><br>
<input type="submit">
</form>
</body>
</html>
Q7)WRITE A MENU DRIVEN PROGRAM TO PERFORM VARIOUS FILE OPERATION. ACCEPT FILOE NAME FROM USER.
a)DISPLAY TYPE OF FILE.
b)DELETE A FILE.
-->
<html>
<body>
<form action="fileoperations.php" method="POST">
Enter FileName:<input type="text" name="name"><br><br>
<input type="radio" value="1" name="option">Display the type of the file<br><br>
<input type="radio" value="2" name="option">Delete the file<br><br>
<input type="submit">
</form>
</body>
</html>
<?php
$fname=$_POST['name'];
if(!(isset($fname)))
{
die("Please enter a file name first.....");
}
if(!(is_file($fname)))
{
die("Given filename is not a file");
}
if(!(file_exists($fname)))
{
die("Given Filename does not exists");
}
$choice=$_POST['option'];
switch($choice)
{
case 1: $ext=end(explode('.',$fname));
echo "It is an <b>$ext</b> file";
break;
case 2: unlink($fname);
echo "File <b>$fname</b> is deleted successfully";
break;
default : echo "Please choose an option...";
}
?>
1 Comments
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