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PHP | SplFileObject fread() Function
  • Last Updated : 20 Dec, 2018

The SplFileObject::fread() function is an inbuilt function of Standard PHP Library (SPL) in PHP which is used to reads the given number of bytes from the file.

Syntax:

string SplFileObject::fread( $length )

Parameters: This function accepts single parameter $length which is used to specify the length to be read from file in bytes.

Return values: This function returns the string read from the file on success or false on failure.

Note: It make sure the file used in below program named as gfg.txt should have read permissions.



Below Programs illustrate the SplFileObject::fread() function in PHP:

Program 1:




<?php
  
// Create an Object 
$file = new SplFileObject("gfg.txt", "r");
  
// Read 5 bytes from file
$gfg = $file->fread(5);
  
// Print Result
echo ($gfg);
?>

Output:

Geeks

Program 2:




<?php 
   
// PHP program to use array to check 
// multiple files 
$GFG = array(
    "dummy.txt",
    "gfg.txt",
    "frame.txt"
    );
   
foreach ($GFG as &$file_name) { 
   
    // Create new SplFile Object 
    $file = new SplFileObject($file_name, "r");
    $contents = $file->fread(13);
    echo $contents . "</br>";
}
?>

Output:

GeeksforGeeks
GeeksforGeeks
GeeksforGeeks

Reference: http://php.net/manual/en/splfileobject.fread.php

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