Fix GH-21742: SplFileObject::fgets() throws at EOF in eof/fgets loop#21853
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Girgias merged 1 commit intophp:masterfrom Apr 23, 2026
Merged
Fix GH-21742: SplFileObject::fgets() throws at EOF in eof/fgets loop#21853Girgias merged 1 commit intophp:masterfrom
Girgias merged 1 commit intophp:masterfrom
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The SplFileObject iterator-desync fix in 08dad09 made spl_filesystem_file_read_ex throw "Cannot read from file" on the NULL-buffer path. SplFileObject::fgets() now throws inside the documented while (!$spl->eof()) $spl->fgets() idiom, because eof() returns false until a read attempt returns zero bytes. Keep the stricter semantics for next(), seek(), current(), fscanf(). Narrow fgets() to silent=true and return empty string on FAILURE, restoring the PHP-8.5 contract. Fixes phpGH-21742
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Fix in
08dad097025madespl_filesystem_file_read_exthrowCannot read from fileon NULL-buffer.SplFileObject::fgets()now throws inside the documentedwhile (!$spl->eof()) $spl->fgets(), because eof() returns false until a read attempt returns zero bytes, so the loop always makes one extra fgets call past the final newline.Narrow fgets to
silent=trueand return empty string when the stream is at EOF; keep the throw for non-EOF read failures so userland wrappers that return NULL without setting EOF still surface the error. next, seek, current, fscanf keep the stricter semantics.Fixes #21742 - Specifically the issue reported by @xabbuh
P.S. Not a new issue, side-effect of earlier SPL fixes only in master, so no news entry is needed.