WordPress SSI

There’s not always a plugin for WordPress, not one that has all the content you want, that special one off, maybe stuff about your files or business info. Generate text from a PowerShell script and insert it into a WordPress page using a simple shortcode.

• Called with a simple shortcode;

• The file must reside in the wp-content\includes folder.

• Copy and paste the following function at the bottom of the functions.php file of your theme.

/**
 * Server-side include shortcode.
 *
 * Usage: [ssi file="example.html"]
 */
function ssi_include_shortcode( $atts ) {
    $atts = shortcode_atts( array(
        'file'     => '',
		'encoding' => 'UTF-8'
    ), $atts, 'ssi' );
	
	$file = 'includes/' . trim( $atts['file'], '"\'' );
    $file = str_replace( array( "\xe2\x80\x9c", "\xe2\x80\x9d", "\xe2\x80\x98", "\xe2\x80\x99" ),
                         array( '"', '"', "'", "'" ),
                         $file );

    $path = trailingslashit( WP_CONTENT_DIR ) . ltrim( $file, '/' );

    $content = @file_get_contents( $path );

    // Detect encoding and convert to UTF-8
    $bom = substr( $content, 0, 2 );
    $encoding = 'UTF-8';

    if ( $bom === "\xFF\xFE" ) {
        // UTF-16 LE with BOM
        $encoding = 'UTF-16LE';
        $content = substr( $content, 2 ); // Strip UTF-16 LE BOM
    } elseif ( $bom === "\xFE\xFF" ) {
        // UTF-16 BE with BOM
        $encoding = 'UTF-16BE';
        $content = substr( $content, 2 );
    } elseif ( substr( $content, 0, 3 ) === "\xEF\xBB\xBF" ) {
        // UTF-8 with BOM
        $encoding = 'UTF-8';
        $content = substr( $content, 3 );
    }

    $content = mb_convert_encoding( $content, $atts['encoding'], $encoding );

    return apply_filters( 'ssi_include_content', $content, $path );
//    return $path;
}

add_shortcode( 'ssi', 'ssi_include_shortcode' );
add_shortcode( 'ssi_include', 'ssi_include_shortcode' );