Author's posts
Oct 11
Make Out Aakash Tablet
The device will be sold to Government of India at $49. The Government of India even distributed 500 free tablets to students from different parts of India who had come to attend the press conference for release of Aakash tablet by HRD minister Kabil Sibal in the capital. The Aakash tablet will be available for students at a subsidized price, which would bring down its value to $35 (Rs. 17,00) making it the cheapest tablet ever.
Permanent link to this article: https://blog.openshell.in/2011/10/make-out-aakash-tablet/
Oct 03
session-start – headers already sent
This happens when you try to start session more than once. [php] The solution for above problem is 1) in php.ini file set session.autostart to 0 session.auto_start = 0 2) Placing a .htaccess file in the root of your web directory with the following value: php_flag session.auto_start 0 3) In your code use this line …
Permanent link to this article: https://blog.openshell.in/2011/10/1263/
Sep 23
PHP characters limitation
Characters limitation will helps to display limited number of characters to display. [php] function limit_characters( $str, $n ) { if ( strlen ( $str ) <= $n ) { return $str; } else { return substr ( $str, 0, $n ) . ‘…’; } } [/php]
Permanent link to this article: https://blog.openshell.in/2011/09/php-characters-limitation/
Sep 23
Resize image in specified height & width while upload
Resizing images in specified height & width while uploading files to the server. [php] /* Create a thumbnail of $srcFile and save it to $destFile. The thumbnail will be $width pixels. */ function createThumbnail($srcFile, $destFile, $new_w, $new_h, $quality = 75) { $thumbnail = ”; if (file_exists($srcFile) && isset($destFile)) { $size = getimagesize($srcFile); $old_x = $size[0]; …
Permanent link to this article: https://blog.openshell.in/2011/09/resize-image-in-specified-height-width-while-upload/
Sep 20
PHP Automatic Session Logout
Automatic logout script if users have inactive more than 15 minutes [php] <?php session_start(); $inactive = 900; // Set timeout period in seconds if (isset($_SESSION[‘timeout’])) { $session_life = time() – $_SESSION[‘timeout’]; if ($session_life > $inactive) { session_destroy(); header("Location: logoutpage.php"); } } $_SESSION[‘timeout’] = time(); ?> [/php]
Permanent link to this article: https://blog.openshell.in/2011/09/php-automatic-session-logout/
Sep 19
PHP MYSQL ORDER BY Multiple Columns
If you want to Order 2 or more columns in SQL Query. When ordering by more than one column, the second column is only used if the values are identical with the onces in the first column. Example [sql] ‘Order by Column ORDER BY COLUMN1, COLUMN2 [/sql] Order 2 or more columns with different orders …
Permanent link to this article: https://blog.openshell.in/2011/09/php-mysql-order-by-multiple-columns/
Aug 15
String Function in PHP
nl2br(): The nl2br() function adds the tag if it finds the carriage return (n) in the text. If you text is long and at many places carriage return is present, even then the nl2br() tag will replace all the occurrence of the carriage return with tag. Here is the syntax of the nl2br() tag: [php] …
Permanent link to this article: https://blog.openshell.in/2011/08/string-function-in-php/
Aug 15
String Functions in PHP [heredoc syntax]
The heredoc syntax: In addition of the single quote and double quote syntaxex, PHP provides another way to specify a string called heredoc syntax. This syntax turns out to be a extremely useful for specifiying large chunks of variable-interpolated text, because it spares you from the need to escape internal quotation marks. It is especially …
Permanent link to this article: https://blog.openshell.in/2011/08/string-functions-in-php-heredoc-syntax/
Aug 10
Setting up dual ip address in ubuntu
Hi, here is a simple way to setup dual ip in your ubuntu system if you already have eth0 as 192.168.0.10 then if you want 192.168.1.10 then use the following command to bring up a alias but this is temporary sudo ifconfig eth0:0 192.168.1.11 up To have a permanent dual ip update the /etc/network/interfaces file like the below …
Permanent link to this article: https://blog.openshell.in/2011/08/setting-up-dual-ip-address-in-ubuntu/
Aug 10
Using Dialup modems in ubuntu
hi all, Everyone will be familiar with configuring wired and wireless network in Ubuntu. But still at some point of time we may have the need to use dialup modem in ubuntu. here is a simple way to configure dialup modems in ubuntu. The following command will install gnome-ppp which is a gui based configuration tool for …
Permanent link to this article: https://blog.openshell.in/2011/08/using-dialup-modems-in-ubuntu/