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