PHP | SplFileObject getMaxLineLen() Function

Last Updated : 11 Jul, 2025
The SplFileObject::getMaxLineLen() function is an inbuilt function of Standard PHP Library (SPL) in PHP which is used to get maximum line length. Syntax: 
int SplFileObject::getMaxLineLen( void )
Parameters: This function does not accept any parameter. Return values: This function returns the maximum length of line. The default value is set to 0. Below Programs illustrate the SplFileObject::getMaxLineLen() function in PHP: Program 1: php 
<?php

// Create an SplFile Object
$file = new SplFileObject("gfg.txt");

// Print Length
var_dump($file->getMaxLineLen());

// Create an SplFile Object
$file = new SplFileObject(__FILE__);

// Print Length
var_dump($file->getMaxLineLen());

?>
Output: 
int(0)
int(0)
Program 2: php 
<?php

// Create an SplFile Object
$gfg = new SplFileObject("gfg.txt");

// Print Length
var_dump($gfg->getMaxLineLen());

// Set length 
$gfg->setMaxLineLen(20);
var_dump($gfg->getMaxLineLen());

?>
Output: 
int(0) int(20)
Reference: https://www.php.net/manual/en/splfileobject.getmaxlinelen.php
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