The UberGallery is a very handy PHP tool to create image galleries. After the setup, it will automatically detect the image files in the folder and generate the thumbnail view on the webpage.
// Get the date in string with Y-m-d format
$exp_date_s = "2013-04-22";
$today_s = date("Y-m-d");
// Convert the dates into timestamp
$exp_date = strtotime($exp_date_s);
$today = strtotime($today_s);
// Compare the timestamp
if ($exp_date > $today) {
// Not yet expired
} else {
// Expired
}
Done =)
Reference: Comparing Dates in PHP
// Assume you have a date string which is in d-m-Y format.
$date_string = '18-04-2013';
// Create the DateTime object
$date = date_create_from_format('d-m-Y', $date_string);
// Print the date in Y-m-d format.
print date('Y-m-d', $date->getTimestamp());
Done =)
Reference:
If you find these 2 errors in the error log.
Edit the php.ini and enable the following 2 settings.
allow_url_fopen = On allow_url_include = On
Restart Apache and they should be fixed.
Done =)
Reference:
Sometimes we need to specify the file charset before writing the data to a file. The data strings which we get from the database are in UTF-8 so we have to convert them in proper charset. This could be done be iconv().
For example, i want to write the Traditional Chinese in Big5. The conversion could be done by.
Continue reading
Haven’t worked with CentOS for a long time. Miss the time and the teammates in HKU CECID.
Here are the steps to install Alternative PHP Cache (APC) on CentOS.
1. Install the following packages.
yum install php-pear php-devel httpd-devel pcre-devel gcc make
We can use PHP to detect the browser user agent such that it would redirect user to another URL if the request comes from a mobile device.
1. Create the user_agent.php.
Continue reading
In Drupal, we can use a progress bar when uploading an image or file. But that needs a PHP PECL extension called uploadprogress. The following steps work for Ubuntu Precise (Ubuntu 12.04.1 LTS).
1. Install the php5-dev package.
During Drupal development, sometimes we may need to manipulate some server data in Javascript. In this case, we could create a custom module to retrieve the database data and pass it to browser such that we can it it in Javascript.
1. Implement the hook_init().
function <module-name>_init() {
drupal_add_js(
array(
'eureka' => array( // we should use module name for best practice
'data' => array(
'Name' => 'ykyuen',
'Blog' => 'Eureka!',
'URL' => 'http://eureka.ykyuen.info/',
),
)
),
'setting'
);
}
Not long a ago, i have 2 posted about rendering Blocks and Views in PHP.
We can render the Drupal 7 block by PHP in another way.
Continue reading
