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Miscellaneous Functions Library: Unpack

Source: Internet
Author: User
Keywords PHP Chinese function Manual unpack miscellaneous functions Library
Tags aliyun array binary data function functions html http
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Unpack

(PHP3, PHP4)

Unpack---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Fetching data from a binary string

Syntax: Array unpack (string format, string data)

Description:

Unpack () makes the binary string an array according to the parameter format, and the returned array contains the elements of the fetch (unpack) binary string.

The operation of unpack () is slightly different from that of Perl, and the data taken from this function is stored in an array. To achieve this, you must have different format code names, and separate them with a slash.

Example:

<?php

$array = Unpack ("C2chars/nint", $binarydata);

?>

The result of the array will contain "chars1", "chars2" and "int".

Description of the format code please refer to: Pack ()

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Related Keywords:
java math library functions string library functions java library functions library functions in c library functions in python miscellaneous questions linux unpack
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