File handling in php

PHP Introduction

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Object Oriented PHP

Using PHP we can read data from the files or we can write the data into files for that we can open the file in different modes like read, write etc.

Syntax to open a file in php

<?php
  $f1=fopen("file-name","open-mode(r,w)");
?>

The content of the file may also be printed by using a single command.

<?php
  echo readfile("class-object.php");
?>

To read the content of a file line by line

<?php
$myfile = fopen("class-object.php", "r") or die("Unable to open file!");
// Output one line until end-of-file
while(!feof($myfile)) {
  echo fgets($myfile) . "<br>";
    // echo fgetc($myfile); to read character by character of the file
 
}
fclose($myfile);
?>

Output of the above program display the content of the file as follows

Write the content into a file using php

<?php
$myfile = fopen("class-object.php", "r") or die("Unable to open file!");
// Output one line until end-of-file
while(!feof($myfile)) {
  echo fgets($myfile) . "<br>";
    // echo fgetc($myfile); to read character by character of the file
 
}
fclose($myfile);
?>

Above program write the given content into the given file.

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File handling in php

Syntax to open a file in php

To read the content of a file line by line

Write the content into a file using php

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