Core Function BinaryUnshift
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| − | $binary = Pack(" | + | $binary = Pack("A*", "One"); |
BinaryUnshift($binary, Asc(" ")); | BinaryUnshift($binary, Asc(" ")); | ||
BinaryUnshift($binary, Asc("o")); | BinaryUnshift($binary, Asc("o")); | ||
BinaryUnshift($binary, Asc("w")); | BinaryUnshift($binary, Asc("w")); | ||
BinaryUnshift($binary, Asc("T")); | BinaryUnshift($binary, Asc("T")); | ||
| − | println( "'" . Unpack(" | + | println( "'" . Unpack("A*", $binary, 3) . "'" ); // Prints: Two One |
</syntaxhighlight> | </syntaxhighlight> | ||
[[Category:Core Function]] | [[Category:Core Function]] | ||
Latest revision as of 12:38, 14 June 2015
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
