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Rechercher une fonction PHP

odbc_binmode

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(PHP 4, PHP 5, PHP 7)

odbc_binmode — Handling of binary column data

Description

odbc_binmode ( resource $result_id , int $mode ) : bool

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() is used, passthru means that an empty string is returned for these columns.

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Parameters

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().

mode

Possible values for mode are:

  • ODBC_BINMODE_PASSTHRU: Passthru BINARY data
  • ODBC_BINMODE_RETURN: Return as is
  • ODBC_BINMODE_CONVERT: Convert to char and return

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Return Values

Returns TRUE on success or FALSE on failure.

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Document created the 30/01/2003, last modified the 26/10/2018
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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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