How can the use of relative path indicators like /, ../, and ./ affect file path resolution in PHP?

Using relative path indicators like /, ../, and ./ can affect file path resolution in PHP by changing the directory from which the file path is being resolved. For example, using ../ moves up one directory level, while using ./ refers to the current directory. It's important to understand how these indicators work to ensure that file paths are resolved correctly in PHP. 

// Example of using relative path indicators in PHP
// Assuming we have a file structure like this:
// - index.php
// - folder1/
//   - file1.php
// - folder2/
//   - file2.php

// To include file1.php from index.php
include 'folder1/file1.php';

// To include file2.php from file1.php
include '../folder2/file2.php';

Keywords

relative path file path resolution PHP / ../

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