Praktikum Aplikasi Web
Pertemuan-8
PHP Files
Percobaan-1 : open a file and read its contents (fopen)
//first we tell php the filename
$file = 'fileDataEx.txt';
// then we try to open the file, using the r mode, for reading only $fp = fopen($file, 'r') or die('Couldn\'t open file!');
// read file contents
$data = fread($fp, filesize($file)) or die('Couldn\'t read file!'); // close file
fclose($fp);
// print file contents
print "The data in the file is \"".$data."\"";
//The data in the file is "This is line one. This is line two. This is line three."
Percobaan-2 : open a file and append data fwrite
$filename = 'fileDataEx.txt';
$addcontent = "This is line 4\n"; //this is the content to append to the file // Try to open the file
$handle = fopen($filename, 'a') ordie ("Can't open file ($filename)"); // Try to write to open file
fwrite($handle, $addcontent) ordie ("Can't write to file ($filename)"); $handle = fopen($filename, 'r') or die('Couldn\'t open file!');
$data = fread($handle, filesize($filename)) ordie ('Couldn\'t read file!');
echo "Success, wrote ($somecontent) to file ($filename)";
fclose($handle);
//Success, wrote () to file (fileDataEx.txt)The new file now is: This is line one. This is line two. This is line three.
Percobaan-3 : Reading a file into an array using file()
$file = 'fileDataEx.txt';
// read file into array
$data = file($file) or die('Could not read file!'); // show the new contents of the file
foreach ($data as $line) {
echo $line."<br>";
}
Percobaan-4 : Reading and writing to files using fputs and fgets
//fgets
$handle = fopen("fileDataEx.txt", "r"); //open file for reading
echo "Using fgets<br>";
//Using fgets
while (!feof($handle)) { //while not end of file
$buffer = fgets($handle, 4096); //use fgets with file handle, specifying size
/*4096 is just the size of the longest line likely, and fgets stops at the end of the line or 4096. Without some size here, fgets might stop at a zero byte in the line rather than the end of the line*/
echo $buffer; //print out the line
}
fclose($handle); //close the file
// File Contents: This is line one. This is line two. This is line three. This is line 4 This is line 4 This is line 4
//fputs
$handle = fopen("fileDataEx2.txt", "a") ordie ("Couldn't open the file"); //open file for reading
//make a string
$string="apples pears
oranges "; //Using fputs
