PHP: Create File -
The fopen() function is used to create a file in PHP.
The example below creates a new file called "testfile.txt". The file will be created in the same directory where the PHP code resides:
If you have thought that the fopen() is used to open the file but also fopen () create a file.
Example
<?php
$my_file = 'testfile.txt';
$handle = fopen($my_file, 'w') or die('Cannot open file: '.$my_file); //implicitly creates file
echo "Your file has been created ";
?>
PHP: Open File -
Now we will learn about how to open the file for that we will use the fopen () function and also a txt file (testfile.txt) to open the file.
Example
<?php
$myfile = fopen("testfile.txt", "r") or die("Unable to open file!");
echo fread($myfile,filesize("testfile.txt"));
fclose($myfile);
?>
PHP: Read file-
The fread() function is used to read the file from the directory .
The first parameter of fopen() contains the file name (a variable in which we have stored file ) and the second parameter contains the file size to be read .
In below example we will read the (testfile.txt).
Example
fread($myfile,filesize("testfile.txt"));
PHP: Write to a file .
The fwrite() writes to an file.
Example
<?php
$myfile = fopen("testfile.txt", "w") or die("Unable to open file!");
$txt = "Hello my name is vishal rana ";
fwrite($myfile, $txt);
$txt = "Jane Doen";
fwrite($myfile, $txt);
fclose($myfile);
?>
PHP: Delete A file -
The delete() function is used to delete a file.
Example
<?php
echo delete("testfile.txt");
?>
PHP: Append to a File -
Now we will append to a file.
Example
$my_file = 'testfile.txt';
$handle = fopen($my_file, 'a') or die('Cannot open file: '.$my_file);
$data = 'New line data (line n 1)';
fwrite($handle, $data);
$new_data = "n".'New line data (line no 2)';
fwrite($handle, $new_data);
PHP: Close a File -
The fclose() function is used to close a file.
Example
$my_file = 'testfile.txt';
$handle = fopen($my_file, 'w') or die('Cannot open file: '.$my_file);
//write some data here
fclose($handle);
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