Aşağıdaki içerik yapıya sahiptir:

temp
    main
        index.php
    a.php
    b.php

İşte dosyalar;

index.php

echo "index.php ---> " . __DIR__ . "<br />";

require('../a.php');

echo "OK<br />"

a.php

echo "a.php ---> " . __DIR__ . "<br />";

require('./b.php');

echo "a is here<br />"

b.php

echo "b is here<br />"

index.php çağrıldığında ben aşağıdaki hata var:

index.php ---> D:\Programs\WampServer 2\www\temp\main
a.php ---> D:\Programs\WampServer 2\www\temp

Warning: require(./b.php) [function.require]: failed karşı open stream: No such file or direckarşıry in D:\Programs\WampServer 2\www\temp\a.php on line 5

Fatal error: require() [function.require]: Failed opening required './b.php' (include_path='.;C:\php5\pear') in D:\Programs\WampServer 2\www\temp\a.php on line 5

Fark ettim ki ben değiştirirsem

require('./b.php');

karşı

require('b.php');

Why is that ? it works as expected.