Función para descomprimir gzip en server linux.

[Inside PHP]

$zp = @gzopen( $srcFileName, "r" );
$fp = @fopen( $dstFileName, "w" );
while( !@gzeof( $zp ) ) {
$string = @gzread( $zp, 4096 );
@fwrite( $fp, $string, strlen($string) );
}
@gzclose( $zp );
@fclose( $fp );