Core Function BinaryUnshift

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Revision as of 21:40, 11 August 2014

BinaryUnshift( <binary-array>, <byte> ) 

Contents

Description

Add a byte to the beginning of a binary variable.

Parameters

binary-array

The binary variable to use.

byte

The byte to add to the beginning of the binary data.

Return Value

Success: Returns 1.

Failure: Returns 0.

Remarks

Binary data is not really meant to be resized like crazy, so if you have a LOT of data, it is best to avoid using this too often.

Example

$binary = Pack("A*", "One");
BinaryUnshift($binary, Asc(" "));
BinaryUnshift($binary, Asc("o"));
BinaryUnshift($binary, Asc("w"));
BinaryUnshift($binary, Asc("T"));
println( "'" . Unpack("A*", $binary, 3) . "'" ); // Prints: Two One
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