(PECL CUBRID >= 8.4.1)
Read from BLOB/CLOB data.
string cubrid_lob2_read ( resource $lob_identifier, int $len )
The cubrid_lob2_read() function reads len
bytes from the LOB data and returns the bytes read.
Parameters:
lob_identifier
Lob identifier as a result of cubrid_lob2_new() or get from the result set.
len
Length from buffer you want to read from the lob data.
Returns:
Returns the contents as a string.
FALSE
when there is no more data.
NULL on failure.
Examples:
cubrid_lob2_read() 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($row[1]) . "\n"; cubrid_lob2_seek($row[1], 10, CUBRID_CURSOR_FIRST); print "\nposition after moving farword is " . cubrid_lob2_tell($row[1]) . "\n"; $data = cubrid_lob2_read($row[1], 12); print "\nposition after reading is " . cubrid_lob2_tell($row[1]) . "\n"; print $data . "\n"; cubrid_lob2_seek($row[1], 5, CUBRID_CURSOR_CURRENT); print "\nposition after moving again is " . cubrid_lob2_tell($row[1]) . "\n"; $data = cubrid_lob2_read($row[1], 20); print $data . "\n"; cubrid_disconnect($conn); ?>
cubrid_lob2_read() 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 $data . "\n"; } elseif ($data === false) { print "There is no more data\n"; break; } else { print "There must some errors\n"; break; } } cubrid_disconnect($conn); ?>
See also:
Please login to continue.