PHP error category
Filesystem
File paths, permissions, and streams.
Filesystem errors arise when file paths, permissions, and streams affect an executing PHP application or its supporting service. Use the exact signature and runtime context to narrow the cause before changing configuration.
The guides in this category separate code defects from environment differences, show focused diagnostics, and favor site-scoped corrections that preserve unrelated applications.
Guides in this category
| Title | Pattern | Severity |
|---|---|---|
| Failed to open stream no such file | Warning: require(%s): Failed to open stream: No such file or directory |
warning |
| Failed to open stream permission denied | Warning: file_put_contents(%s): Failed to open stream: Permission denied |
warning |
| open_basedir restriction in effect | Warning: file_exists(): open_basedir restriction in effect. File(/etc/passwd) is not within the allowed path(s) |
warning |