GZFile

About 2 min

GZFile

Properties

level

private int $level = -1

encoding

private int $encoding = 'FORCE_GZIP'

handle

private mixed $handle

Methods

__construct

public __construct(mixed $file, ?Manager $manager): void

Parameters

Parameter	Type	Description
`$file`	`mixed`
`$manager`	`Manager`

setCompressionLevel

Sets the level of compression.

public setCompressionLevel(int $level): void

Can be given as 0 for no compression up to 9 for maximum compression.

If -1 is used, the default compression of the zlib library is used which is 6.

Parameters

Parameter	Type	Description
`$level`	`int`

getCompressionLevel

Returns the current compression level setting.

public getCompressionLevel(): int

Can be a value of 0 for no compression up to 9 for maximum compression.

If the value is -1, the default compression of the zlib library is being used, which is 6.

setEncoding

Set the current encoding for compress.

public setEncoding(int $encoding): bool

Parameters

Parameter	Type	Description
`$encoding`	`int`

getEncoding

Returns the current gzencode encoding.

public getEncoding(): int

open

Open gz-file.

public open(string $mode = 'r'): mixed

Parameters

Parameter	Type	Description
`$mode`	`string`

close

Close an open gz-file pointer.

public close(): bool

read

Binary-safe gz-file read.

public read(int $length): string

File::read() reads up to length bytes from the file pointer referenced by handle. Reading stops as soon as one of the following conditions is met:

length bytes have been read
EOF (end of file) is reached
a packet becomes available or the socket timeout occurs (for network streams)
if the stream is read buffered and it does not represent a plain file, at most one read of up to a number of bytes equal to the chunk size (usually 8192) is made; depending on the previously buffered data, the size of the returned data may be larger than the chunk size.

Parameters

Parameter	Type	Description
`$length`	`int`	up to length number of bytes read

write

Binary-safe gz-file write.

public write(string $string, ?int $length): int

File::write() writes the contents of string to the file stream pointed to by handle.

Parameters

Parameter	Type	Description
`$string`	`string`	the string that is to be written
`$length`	`int`	If the length argument is given, writing will stop after length bytes have been written or the end

                  of string is reached, whichever comes first.

                 Note that if the length argument is given, then the magic_quotes_runtime configuration option
                 will be ignored and no slashes will be stripped from string. |

getc

Returns a character from the file pointer.

public getc(): string

gets

Returns a line from the file pointer.

public gets(?int $length): string

Parameters

Parameter	Type	Description
`$length`	`int`

getss

Returns a line from the file pointer and strips HTML tags.

public getss(string $allowable_tags): string

Parameters

Parameter	Type	Description
`$allowable_tags`	`string`

seek

Seeks to a position in the file.

public seek(int $offset, int $whence = 'SEEK_SET'): int

Parameters

Parameter	Type	Description
`$offset`	`int`	The offset. To move to a position before the end-of-file, you need to pass a negative value in offset and set whence to SEEK_END.
`$whence`	`int`	whence values are:

               SEEK_SET - Set position equal to offset bytes.
               SEEK_CUR - Set position to current location plus offset.
               SEEK_END - Set position to end-of-file plus offset. |

tell

Returns the current position of the file read/write pointer.

public tell(): int

rewind

Rewind the position of a file pointer.

public rewind(): bool

Sets the file position indicator for handle to the beginning of the file stream.

eof

Tests for end-of-file on a file pointer.

public eof(): bool

get_contents

Returns the current contents of the file.

public get_contents(int $offset = -1, NULL $maxlen): void

Parameters

Parameter	Type	Description
`$offset`	`int`
`$maxlen`	`NULL`

putContents

Put contents directly writes data to the storage manager without storing it in the file object itself.

public putContents(string $data, bool $overwrite = true): ?int

NOTE: This function is called internally to save data that has been updated in the file object.

Parameters

Parameter	Type	Description
`$data`	`string`
`$overwrite`	`bool`

saveAs

Saves this file objects content to another file name.

public saveAs(string $filename, bool $overwrite = false): ?int

Parameters

Parameter	Type	Description
`$filename`	`string`	The filename to save as
`$overwrite`	`bool`	Boolean flag to indicate that the destination should be overwritten if it exists

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