The SplFileObject::next() is an inbuilt function in PHP that is used to iterate the file using the SplFileObject. The pointer will point next line. The SplFileObject implements Iterator and Traversal. That means you can use it in foreach loops and use many of the iterator functions with it.
Syntax
public void SplFileObject::next ( void )
Parameter
This function does not accept any parameters.
Return Value
This function does not return any value.
Program 1: The following program demonstrates the SplFileObject::next() function. Save this text in the “output.txt” file in the current working directory before running this program.
Hey neveropen
PHP
<?php $file = new SplFileObject("./output.txt", "r"); while (!$file->eof()) { // Get the current line // without advancing the pointer $line = $file->current(); echo $line . PHP_EOL; // Advance to the next line $file->next(); } ?> |
Output:
Hey neveropen
Program 2: The following program demonstrates the SplFileObject::next() function. Save this text in the “output.txt” file in the current working directory before running this program.
Hello This is a Simple example Another example here.
PHP
<?php $file = new SplFileObject("./output.txt", "r"); while (!$file->eof()) { // Get the current line $line = $file->current(); if (strpos($line, "example") !== false) { echo $line . PHP_EOL; } // Advance to the next line $file->next(); } ?> |
Output:
Simple example Another example here.
Reference: https://www.php.net/manual/en/splfileobject.next.php
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