cubrid_lob2_read

(PECL CUBRID >= 8.4.1)

cubrid_lob2_readRead from BLOB/CLOB data

Description

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

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.

Return Values

Returns the contents as a string, false when there is no more data, or null on failure.

Examples

Example #1 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");

$row cubrid_fetch_row($reqCUBRID_LOB);

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

cubrid_lob2_seek($row[1], 10CUBRID_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], 5CUBRID_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);
?>

Example #2 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");

$row cubrid_fetch_row($reqCUBRID_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

Here you can write a comment


Please enter at least 10 characters.
Loading... Please wait.
* Pflichtangabe
There are no comments available yet.

PHP cURL Tutorial: Using cURL to Make HTTP Requests

cURL is a powerful PHP extension that allows you to communicate with different servers using various protocols, including HTTP, HTTPS, FTP, and more. ...

TheMax

Autor : TheMax
Category: PHP-Tutorials

Midjourney Tutorial - Instructions for beginners

There is an informative video about Midjourney, the tool for creating digital images using artificial intelligence, entitled "Midjourney tutorial in German - instructions for beginners" ...

Mike94

Autor : Mike94
Category: KI Tutorials

Basics of views in MySQL

Views in a MySQL database offer the option of creating a virtual table based on the result of an SQL query. This virtual table can be queried like a normal table without changing the underlying data. ...

admin

Autor : admin
Category: mySQL-Tutorials

Publish a tutorial

Share your knowledge with other developers worldwide

Share your knowledge with other developers worldwide

You are a professional in your field and want to share your knowledge, then sign up now and share it with our PHP community

learn more

Publish a tutorial