Bug #78575 [Opn]: copy() always report an error with a custom stream wrapper

Edit report at https://bugs.php.net/bug.php?id=78575&edit=1 ID: 78575 Updated by: nikic@php.net Reported by: thomas dot gerbet at enalean dot com Summary: copy() always report an error with a custom stream wrapper Status: Open Type: Bug Package: Streams related PHP Version: 7.4.0RC2 Block user comment: N Private report: N New Comment: copy() reports an error because a stream_read() call reported an error by returning false. Possibly something in the implementation needs to be adjusted to return "" instead of false on EOF? Previous Comments: ------------------------------------------------------------------------ [2019-09-20 13:02:47] thomas dot gerbet at enalean dot com Description: ------------ Issue found while using the vfsStream library [0]. copy() always return false even if the data are actually copied. This behaviour change seems to be present since https://github.com/php/php-src/commit/11f3e24190fa45689c8ccaeea54a28db6752092e [0] https://github.com/bovigo/vfsStream Test script: --------------- <?php // See https://github.com/LeSuisse/php74-rc2-streamwrapper-bug require_once __DIR__ . '/vendor/autoload.php'; $fs = org\bovigo\vfs\vfsStream::setup(); $source_path = $fs->url() . '/f1'; file_put_contents($source_path, 'A'); $destination_path = $fs->url() . '/f2'; var_dump(copy($source_path, $destination_path)); var_dump(file_get_contents($destination_path)); Expected result: ---------------- bool(true) string(1) "A" Actual result: -------------- bool(false) string(1) "A" ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=78575&edit=1