Wordpress use results of an external query in functions.php
Question
I have a custom php page outside of wordpress, this page is connecting also to a external database, and get resultat form a sql query on a variable
i use require('../wp-blog-header.php') and require('../wp-load.php') to integrate with wordpress.
now i need to use this variable on the functions.php of my wordpress theme.
i do on my external page :
<head>
<connect to my database>
<my query>
<get resulte on $variable>
<require('../wp-blog-header.php')>
<require('../wp-load.php')>
but when i use $variable on my functions.php it do not work ?
2 answers
solution1
0 2014-03-16 09:05:22
You need to include wp-load.php alone. It will load wp-include (and wpdb), plugins and your theme (functions.php). To use the database directly you would do this:
global $wpdb;
$wpdb->get_results('select ...');
If you need to access variable declared in functions.php, it's straight forward:
say.php
<?php
include 'var.php';
print_r( $moo );
?>
var.php
<?php
$moo= 'cow';
?>
output of say.php
$ php say.php
cow
Loading (include or require) functions.php after wp-load.php will result in redeclaration of the functions defined within functions.php (it will be loaded twice), causing PHP to crash.
solution2
0 2014-03-16 11:56:01
Unless you are using wordpress features in your external query there is no need to include wordpress files.
Your external.php could look something like
function handy_prefix_my_processing_function()
{
//connect to database...
//Do something with data...
$result = $results
//return the result
return $result;
}
then in functions.php
function handy_prefix_get_my_variable()
{
//Load the external file and make its functions available
include_once( 'external.php' );
//Get my result
$result = handy_prefix_my_processing_function();
//Do something with the result....
}
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