gzread

(PHP 4, PHP 5, PHP 7, PHP 8)

gzread — Binary-safe gz-file read

说明

gzread(resource $stream, int $length): string|false

gzread() reads up to length bytes from the given gz-file pointer. Reading stops when length (uncompressed) bytes have been read or EOF is reached, whichever comes first.

参数

stream

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

length

The number of bytes to read.

返回值

The data that have been read, 或者在失败时返回 false.

更新日志

版本 说明
7.4.0 This functions returns false on failure now; previously 0 was returned.

范例

示例 #1 gzread() example

<?php
// get contents of a gz-file into a string
$filename = "/usr/local/something.txt.gz";
$zd = gzopen($filename, "r");
$contents = gzread($zd, 10000);
gzclose($zd);
?>

参见

  • gzwrite() - Binary-safe gz-file write
  • gzopen() - Open gz-file
  • gzgets() - Get line from file pointer
  • gzgetss() - Get line from gz-file pointer and strip HTML tags
  • gzfile() - Read entire gz-file into an array
  • gzpassthru() - Output all remaining data on a gz-file pointer