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# gzwrite

(PHP 3, PHP 4, PHP 5)

gzwrite -- Binary-safe gz-file write

## Description

int gzwrite ( resource zp, string string [, int length] )

gzwrite() writes the contents of string to the given gz-file.

## Parameters

zp

  The gz-file pointer. It must be valid, and must point to a file successfully opened by gzopen().

string

  The string to write.

length

  The number of uncompressed bytes to write. If supplied, writing will stop after length (uncompressed) bytes have been written or the end of string is reached, whichever comes first.

  > Note: 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.

## Return Values

Returns the number of (uncompressed) bytes written to the given gz-file stream.

## Examples

Example 1. gzwrite() example

`<?php $string = 'Some information to compress'; $gz = gzopen('somefile.gz','w9'); gzwrite($gz, $string); gzclose($gz); ?>`

## See Also

gzread()
gzopen()

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