This plugin lets you include custom fields inside a post, page, or text widget. It creates a shortcode that lets you include RAW HTML inside posts from the post’s custom fields.
Where is this useful?
- Advanced / power users might find this handy when visual editor mangles their HTML and custom markup.
- Trusted editors might need to include non-standard embeds (third party iframe embeds, etc.)
- If you need to include a site-wide pseudo-widget (repeating fact box, ad), this can work.
- You can display custom fields in a widget (enable feature in options first.)
Usage Example
| Create a custom field in the post
(ex: “my table” or “table”):
|
Then, inside a WP post put this shortcode:
[include table] or [include "my table"]
|
If needed, you can perform global includes from other posts with: [include global="my table"]
Recursive
Warning/extra feature: shortcodes can be recursive on some versions of WP. If you have these custom fields:
| Name | Value |
|---|---|
| One | First sentence. |
| Two | Second sentence. |
| Three | Test ing. |
Putting [include three] in a WP post might produce:
“Test First sentence. Second sentence. ing.”
Integrate external programs
Any program with MySQL access can thus be easily integrated via custom fields. Here’s a tiny program that takes STDIN and dumps it into a custom field. Simply save this as wordpress-meta.php, chmod +x wordpress-meta.php and (after you make sure wp-config.php is available to it) you can do the following:
| uptime | ./wordpress-meta.php "Machine Uptime" | Will look for any posts with "Machine Uptime" meta key, and update it with readout from uptime command. |
| perl someprogram.pl | ./wordpress-meta.php 1012 special | Takes input from a perl program, and puts it in post ID # 1012, meta key "special" |
(You can download this utility from github)
<?php
require( "wp-config.php" );
if( $argc == 1 ) {
echo "\nThis program redirects STDIN into a WordPress custom field.\n";
echo "If a post ID is not specified, program will attempt to find\n";
echo "a matching post with a unique key (make sure key is unique)\n\n";
echo "\nUsage: ls | ./wordpress-meta.php [post_ID] \"[post meta name]\"\n\n";
echo "\tWhere post_ID is a number, and meta name is a key\n";
echo "\tIf meta name/key is a complex string, put it in quotes\n";
echo "\t\tex: cat /ads/current.txt | ./wordpress-meta.php \"global ads\"\n";
echo "\t\tex: uptime | ./wordpress-meta.php 1433 uptime\n\n";
die;
}
if( $argc > 3 )
die( "Error: too many args. Try putting custom field name in quotes." );
if( $argc == 2 && is_numeric($argv[1]) )
die( "Error: custom field name missing, only got a number.\n" );
// assume no error after this point :/
if( $argc == 2 ) {
$meta_key = $argv[1];
$query = new WP_Query(array(
'post_type' => 'any',
'post_status' => 'any',
'posts_per_page' => 1,
'meta_key' => $meta_key
));
if( empty( $query->posts ) ) {
die( "Post not found with that meta key\n" );
}
$post_id = $query->posts[0]->ID;
} elseif( $argc == 3 ) {
if( is_numeric($argv[1]) ) {
$post_id = $argv[1];
$meta_key = $argv[2];
} else {
$post_id = $argv[2];
$meta_key = $argv[1];
}
}
$text = '';
$fp = fopen( 'php://stdin', 'r');
while( !feof( $fp ) ) $text .= fgets( $fp, 4096 );
fclose( $fp );
update_post_meta( $post_id, $meta_key, $text );
printf(
"Updated, post id = %s, meta_key='%s', length=%s\n",
$post_id, $meta_key, strlen( $text )
);
?>
Download
Get the WP plugin from https://github.com/pp19dd/Include-custom-field