cubrid_lob2_read(3) php man page | unix.com

CUBRID_LOB2_READ(3)							 1						       CUBRID_LOB2_READ(3)

cubrid_lob2_read - Read from BLOB/CLOB data.

SYNOPSIS
       string cubrid_lob2_read (resource  $lob_identifier, int	$len)

DESCRIPTION
	The cubrid_lob2_read(3) function reads $len bytes from the LOB data and returns the bytes read.

PARAMETERS
	      o $lob_identifier
		-Lob identifier as a result of cubrid_lob2_new(3) or get from the result set.

	      o $len
		-Length from buffer you want to read from the lob data.

RETURN VALUES
	Returns the contents as a string.

       FALSE when there is no more data.

	NULL on failure.

EXAMPLES
       Example #1

	      cubrid_lob2_read(3) example 1

	      <?php
	      // test_lob (id INT, contents CLOB)

	      $conn = cubrid_connect("localhost", 33000, "demodb", "public", "");

	      $req = cubrid_execute($conn, "select * from test_lob");

	      $row = cubrid_fetch_row($req, CUBRID_LOB);

	      print "position now is " . cubrid_lob2_tell($row[1]) . "
";

	      cubrid_lob2_seek($row[1], 10, CUBRID_CURSOR_FIRST);

	      print "
position after moving farword is " . cubrid_lob2_tell($row[1]) . "
";

	      $data = cubrid_lob2_read($row[1], 12);

	      print "
position after reading is " . cubrid_lob2_tell($row[1]) . "
";

	      print $data . "
";

	      cubrid_lob2_seek($row[1], 5, CUBRID_CURSOR_CURRENT);

	      print "
position after moving again is " . cubrid_lob2_tell($row[1]) . "
";

	      $data = cubrid_lob2_read($row[1], 20);
	      print $data . "
";

	      cubrid_disconnect($conn);
	      ?>

       Example #2

	      cubrid_lob2_read(3) example 2

	      <?php
	      // test_lob (id INT, contents CLOB)

	      $conn = cubrid_connect("localhost", 33000, "demodb", "dba", "");

	      $req = cubrid_execute($conn, "select * from test_lob");

	      $row = cubrid_fetch_row($req, CUBRID_LOB);

	      while (true) {
		  if ($data = cubrid_lob2_read($row[1], 1024)) {
		      print $data . "
";
		  }
		  elseif ($data === false) {
		      print "There is no more data
";
		      break;
		  }
		  else {
		      print "There must some errors
";
		      break;
		  }
	      }

	      cubrid_disconnect($conn);
	      ?>

SEE ALSO
       cubrid_lob2_write(3),   cubrid_lob2_seek(3),   cubrid_lob2_seek64(3),   cubrid_lob2_tell(3),   cubrid_lob2_tell64(3),  cubrid_lob2_size(3),
       cubrid_lob2_size64(3).

PHP Documentation Group 												       CUBRID_LOB2_READ(3)