Core Function BinaryUnshift
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(Created page with "<pre> BinaryUnshift( <binary-array>, <byte> ) </pre> === Description === Add a byte to the beginning of a binary variable. === Parameters === ==== binary-array ==== The bin...") |
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| − | $binary = Pack("z0", "One") | + | $binary = Pack("z0", "One"); |
| − | BinaryUnshift($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("z0", $binary) . "'" ) ; Prints: Two One | + | println( "'" . Unpack("z0", $binary) . "'" ); // Prints: Two One |
</syntaxhighlight> | </syntaxhighlight> | ||
[[Category:Core Function]] | [[Category:Core Function]] | ||
Revision as of 17:52, 19 November 2011
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 its best to avoid using this too often.
Example
$binary = Pack("z0", "One"); BinaryUnshift($binary, Asc(" ")); BinaryUnshift($binary, Asc("o")); BinaryUnshift($binary, Asc("w")); BinaryUnshift($binary, Asc("T")); println( "'" . Unpack("z0", $binary) . "'" ); // Prints: Two One
