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Full Discussion: binary to ascii
Top Forums Shell Programming and Scripting binary to ascii Post 302246579 by Annihilannic on Tuesday 14th of October 2008 02:40:36 AM
Old 10-14-2008
The only difference between a binary file and an ASCII file is that the binary file may contain some unprintable characters. You can strip those out using the strings command, but you may lose some of the integrity of your data.
 

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ODBC_BINMODE(3) 							 1							   ODBC_BINMODE(3)

odbc_binmode - Handling of binary column data

SYNOPSIS
bool odbc_binmode (resource $result_id, int $mode) DESCRIPTION
Enables handling of binary column data. ODBC SQL types affected are BINARY, VARBINARY, and LONGVARBINARY. When binary SQL data is converted to character C data, each byte (8 bits) of source data is represented as two ASCII characters. These characters are the ASCII character representation of the number in its hexadecimal form. For example, a binary 00000001 is converted to "01" and a binary 11111111 is converted to "FF". LONGVARBINARY handling +----------------------+----------------+---+ | binmode | | | | | | | | | longreadlen | | | | | | | | result | | | | | | +----------------------+----------------+---+ | | | | |ODBC_BINMODE_PASSTHRU | | | | | | | | | 0 | | | | | | | | passthru | | | | | | | | | | | ODBC_BINMODE_RETURN | | | | | | | | | 0 | | | | | | | | passthru | | | | | | | | | | |ODBC_BINMODE_CONVERT | | | | | | | | | 0 | | | | | | | | passthru | | | | | | | | | | |ODBC_BINMODE_PASSTHRU | | | | | | | | | 0 | | | | | | | | passthru | | | | | | | | | | |ODBC_BINMODE_PASSTHRU | | | | | | | | | >0 | | | | | | | | passthru | | | | | | | | | | | ODBC_BINMODE_RETURN | | | | | | | | | >0 | | | | | | | | return as is | | | | | | | | | | |ODBC_BINMODE_CONVERT | | | | | | | | | >0 | | | | | | | | return as char | | | | | | +----------------------+----------------+---+ If odbc_fetch_into(3) is used, passthru means that an empty string is returned for these columns. PARAMETERS
o $result_id - The result identifier. If $result_id is 0, the settings apply as default for new results. Note Default for longreadlen is 4096 and $mode defaults to ODBC_BINMODE_RETURN. Handling of binary long columns is also affected by odbc_longreadlen(3). o $mode - Possible values for $mode are: o ODBC_BINMODE_PASSTHRU: Passthru BINARY data o ODBC_BINMODE_RETURN: Return as is o ODBC_BINMODE_CONVERT: Convert to char and return RETURN VALUES
Returns TRUE on success or FALSE on failure. PHP Documentation Group ODBC_BINMODE(3)
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