PHP Conference Nagoya 2025

    The SplTempFileObject class

    (PHP 5 >= 5.1.2, PHP 7, PHP 8)

    简介

    The SplTempFileObject class offers an object-oriented interface for a temporary file.

    类摘要

    class SplTempFileObject extends SplFileObject {
    /* 继承的常量 */
    public const int SplFileObject::DROP_NEW_LINE;
    public const int SplFileObject::READ_AHEAD;
    public const int SplFileObject::SKIP_EMPTY;
    public const int SplFileObject::READ_CSV;
    /* 方法 */
    public __construct(int $maxMemory = 2 * 1024 * 1024)
    /* 继承的方法 */
    public SplFileObject::current(): string|array|false
    public SplFileObject::eof(): bool
    public SplFileObject::fflush(): bool
    public SplFileObject::fgetc(): string|false
    public SplFileObject::fgetcsv(string $separator = ",", string $enclosure = "\"", string $escape = "\\"): array|false
    public SplFileObject::fgets(): string
    public SplFileObject::fgetss(string $allowable_tags = ?): string
    public SplFileObject::flock(int $operation, int &$wouldBlock = null): bool
    public SplFileObject::fpassthru(): int
    public SplFileObject::fputcsv(
        array $fields,
        string $separator = ",",
        string $enclosure = "\"",
        string $escape = "\\",
        string $eol = "\n"
    ): int|false
    public SplFileObject::fread(int $length): string|false
    public SplFileObject::fscanf(string $format, mixed &...$vars): array|int|null
    public SplFileObject::fseek(int $offset, int $whence = SEEK_SET): int
    public SplFileObject::fstat(): array
    public SplFileObject::ftell(): int|false
    public SplFileObject::ftruncate(int $size): bool
    public SplFileObject::fwrite(string $data, int $length = 0): int|false
    public SplFileObject::getChildren(): null
    public SplFileObject::getCsvControl(): array
    public SplFileObject::getFlags(): int
    public SplFileObject::getMaxLineLen(): int
    public SplFileObject::hasChildren(): false
    public SplFileObject::key(): int
    public SplFileObject::next(): void
    public SplFileObject::rewind(): void
    public SplFileObject::seek(int $line): void
    public SplFileObject::setCsvControl(string $separator = ",", string $enclosure = "\"", string $escape = "\\"): void
    public SplFileObject::setFlags(int $flags): void
    public SplFileObject::setMaxLineLen(int $maxLength): void
    public SplFileObject::__toString(): string
    public SplFileObject::valid(): bool
    public SplFileInfo::getATime(): int|false
    public SplFileInfo::getBasename(string $suffix = ""): string
    public SplFileInfo::getCTime(): int|false
    public SplFileInfo::getExtension(): string
    public SplFileInfo::getFileInfo(?string $class = null): SplFileInfo
    public SplFileInfo::getFilename(): string
    public SplFileInfo::getGroup(): int|false
    public SplFileInfo::getInode(): int|false
    public SplFileInfo::getLinkTarget(): string|false
    public SplFileInfo::getMTime(): int|false
    public SplFileInfo::getOwner(): int|false
    public SplFileInfo::getPath(): string
    public SplFileInfo::getPathInfo(?string $class = null): ?SplFileInfo
    public SplFileInfo::getPathname(): string
    public SplFileInfo::getPerms(): int|false
    public SplFileInfo::getRealPath(): string|false
    public SplFileInfo::getSize(): int|false
    public SplFileInfo::getType(): string|false
    public SplFileInfo::isDir(): bool
    public SplFileInfo::isExecutable(): bool
    public SplFileInfo::isFile(): bool
    public SplFileInfo::isLink(): bool
    public SplFileInfo::isReadable(): bool
    public SplFileInfo::isWritable(): bool
    public SplFileInfo::openFile(string $mode = "r", bool $useIncludePath = false, ?resource $context = null): SplFileObject
    public SplFileInfo::setFileClass(string $class = SplFileObject::class): void
    public SplFileInfo::setInfoClass(string $class = SplFileInfo::class): void
    public SplFileInfo::__toString(): string
    }

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    Steve
    1 year ago
    Since a temporary file is not a real file, some inherited methods will not work. For example,

    * SplFileInfo::isReadable() and SplFileInfo::isWritable() return false, not because it was unreadable or unwritable, but because the file does not exists.

    * SplFileObject::flock() fails and returns false.

    * SplFileInfo::getATime(), SplFileInfo::getCTime(), SplFileInfo::getMTime(), SplFileInfo::getOwner(), SplFileInfo::getGroup(), SplFileInfo::getInode(), SplFileInfo::getPerms(), and SplFileInfo::getSize() throw RuntimeException "stat failed for php://temp". However, SplFileObject::fstat() succeeds and returns atime = mtime = ctime = uid = gid = ino = 0 together with the correct size.

    * SplFileInfo::getType throws RuntimeException "Lstat failed for php://temp".

    * SplFileInfo::getLinkTarget throws RuntimeException "Unable to read link php://temp, error: No such file or directory".
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