(PHP 5 >= 5.1.2, PHP 7, PECL hash >= 1.1)
Pump data into an active hashing context from an open stream
int hash_update_stream ( resource $context, resource $handle [, int $length = -1 ] )
Parameters:
context
Hashing context returned by hash_init().
handle
Open file handle as returned by any stream creation function.
length
Maximum number of characters to copy from handle into the hashing context.
Returns:
Actual number of bytes added to the hashing context from handle.
Examples:
hash_update_stream() example
1 2 3 4 5 6 7 8 9 | <?php$fp = tmpfile();fwrite($fp, 'The quick brown fox jumped over the lazy dog.');rewind($fp);$ctx = hash_init('md5');hash_update_stream($ctx, $fp);echo hash_final($ctx);?> |
The above example will output:
5c6ffbdd40d9556b73a21e63c3e0e904
See also:
hash() -
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