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Output JSON from WordPress

Say that you wanted to read data from a MySQL database, using PHP in a Linux environment, and then wanted to connect this data with a PhoneGap application, then you need to find a way to convert the MySQL data to JSON, to provide the interface with the PhoneGap app (which is basically HTML5)

So, as an example, I wrote a PHP script that connects to the MySQL database that underlies my OpenMerchantAccount.com blog, and converts the wp_posts table to JSON

So, I wrote the following code in PHP:

// Check connection
if (mysqli_connect_errno())
echo “Failed to connect to MySQL: ” . mysqli_connect_error();
mysqli_set_charset($con, “utf8″);
$result = mysqli_query($con,”SELECT * FROM wp_posts where post_status=’publish'”);
$rows = array();
while($row = mysqli_fetch_array($result))
$rows[] = $row;
echo json_encode($rows);

Which is accessable via this url: http://www.presentr.info/db2json.php

Then, using a simple PhoneGap app template, I connected it to a HTML5 webpage, which is hosted here


*Note*: You will need to use Google Chrome to visit the above url. 

Categories: Uncategorized
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