[PHP] How to know if string is encoded as UTF8 (Unicode?)
The method below was presented in php.net site and it works as intended for the most of time. Here is code to convert the string if string is encoded as UTF8.
[JavaScript] How to stop browser back button
This code is not mine and it is copied from Stack Overflow as usual. More detailed information about history.pushState can be seen HERE. Here is another link for popstate.
[PHP] Allow access to PHP file for AJAX call only from files on local server
It is worthwhile to check with phpinfo() function if sever variables are all available for your server to implement the code as below.
[PHP] How to list files in a directory
The glob() function is used to get an array of filenames or directories. Then, array_multisort() function is sorting filenames according to the file’s created time. Lastly, it can be presented as intended with foreach looping.
[DB] How to select random rows from a table
It is needed to select some records randomly to take sample data from a table. MySQL can accomplish this task by using rand() function in order by clause as below. In case selecting 20 users randomly. In case it has to be ordered by name
[PHP] How to Upload a file
Not like any other post variables, file element information is posted as two dimensional array. So, getting post data for a file element can be accomplished as below.
[PHP] mail accented or special characters in subject field
The problem I had was that email with French subject was sent with no subject. Because subject field is one part of header in email, accented characters in header seemed to cause problem. First attempt to fix this problem was to encode the subject field in unicode as below but the issue persisted. [code language=”PHP”] […]
[PHP] How to retrieve credit card payment reports from Bambora
First of all, make sure if API access passcode under “administration -> account settings -> order settings” is generated and obtainable. Payment reports are retrieved by transaction dates. So, it should be cross checked with local DB transaction data in order to get one transaction information out of order number, customer’s name or other information […]
[PHP] How to upload a file to other server using POST method with CURL
For me, it was required to send a uploaded file on application server to web server So, I googled, tested and implemented this solution. Basically, this is not purely my work as usual as. First, make sure CURL is installed on your PHP. Installation might be different according your setup. From Server will have a page like […]
[DB] How to sort non-numeric field numerically in MySQL
It is common to store numeric values on Varchar or non-numeric field for developer’s convenience. However, it can cause a problem when sorting. For example, 10 comes prior to 9 when sorted. Here are three tricks thatcan be found on various websites as below. 1. Casting It is possible to sort while casting non-numeric value […]