cubrid_lob2_read

(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);
?>