WordPress plugin to make the displayed WordPress functions names in your posts content clickable and linked to their reference page in the codex using a shortcode.

readme.txt

=== Functions 2 Links ===
Contributors: sebmeric
Tags: codex, developer, development, reference, documentation, manual
Requires at least: 5.0
Tested up to: 5.4
Stable tag: 0.1b
License: GPLv2 or later

Make the displayed WordPress functions names in your posts content clickable and linked to their reference page in the codex using a shortcode.

== Description ==

Make your displayed WordPress functions names in your posts content clickable and linked to their reference page in the codex using a shortcode.

Use [F2L type="wpf" name="the_content"] to get <code><a href="https://developer.wordpress.org/reference/functions/the_content/" title="Check on WordPress Code Reference...">the_content</a></code>.

Default types are "wpf" for WordPress functions, "wph" for WordPress hooks, "wpc" for WordPress classes and "wpm" for WordPress methods.

WordPress dev : add your own types by hooking in the F2L_types filter ! For example you can create a "phpf" type to forge links to the php.net manual :

<?php
function F2L_types( $type, $name, $content ) {
    if ( 'phpf' === $type ) {
        $content = '<code><a href="https://www.php.net/manual/fr/function.' . str_replace( '_', '-', $name ) . '.php" title="' . esc_attr__( 'Check on php.net...', 'txt-domain' ) . '" rel="external noopener noreferrer">' . $name . '</a></code>';
    }
    return $content;
}
add_filter( 'F2L_types', 'F2L_types', 10, 3 );
?>

== Installation ==

Upload the F2L plugin to your blog, activate it, and start using the shortcode in your post content.

== Changelog ==

= 0.1b =
*Release Date - 26 March 2020*

* First release as beta version

f2l-new-type.php

<?php
// as an example, this is the way to add a type to forge links to php.net manual
function F2L_types( $type, $name, $content ) {
    if ( 'phpf' === $type ) {
        $content = '<code><a href="https://www.php.net/manual/fr/function.' . str_replace( '_', '-', $name ) . '.php" title="' . esc_attr__( 'Check on php.net...', 'txt-domain' ) . '" rel="external noopener noreferrer">' . $name . '</a></code>';
    }
    return $content;
}
add_filter( 'F2L_types', 'F2L_types', 10, 3 );

f2l.php

<?php
/**
 * Plugin Name: Functions 2 Links
 * Plugin URI: https://gist.github.com/smeric/0b511224d7a36362b30c7ed9251690a3
 * Description: Use [F2L type="wpf" name="the_content"] to get <code><a href="https://developer.wordpress.org/reference/functions/the_content/" title="Check on WordPress Code Reference...">the_content</a></code>. Default types are "wpf" for WordPress functions, "wph" for WordPress hooks, "wpc" for WordPress classes and "wpm" for WordPress methods. WordPress dev : add your own types by hooking in the F2L_types filter !
 * Version: 0.1b
 * Author: Sébastien Méric
 * Author URI: https://sebastien-meric.com/
 */

add_shortcode( 'F2L', function( $atts, $content = '' ) {
    extract( shortcode_atts( array(
        'name' => '',
        'type' => '',
    ), $atts, 'F2L' ) );

    if ( 'wpf' === $type ) {
        $content = '<code><a href="https://developer.wordpress.org/reference/functions/' . $name . '/" title="' . esc_attr__( 'Check on WordPress Code Reference...', 'functionality-plugin' ) . '" rel="external noopener noreferrer">' . $name . '</a></code>';
    }
    elseif ( 'wph' === $type ) {
        $content = '<code><a href="https://developer.wordpress.org/reference/hooks/' . $name . '/" title="' . esc_attr__( 'Check on WordPress Code Reference...', 'functionality-plugin' ) . '" rel="external noopener noreferrer">' . $name . '</a></code>';
    }
    elseif ( 'wpc' === $type ) {
        $content = '<code><a href="https://developer.wordpress.org/reference/classes/' . $name . '/" title="' . esc_attr__( 'Check on WordPress Code Reference...', 'functionality-plugin' ) . '" rel="external noopener noreferrer">' . $name . '</a></code>';
    }
    elseif ( 'wpm' === $type ) {
        $content = '<code><a href="https://developer.wordpress.org/reference/methods/' . $name . '/" title="' . esc_attr__( 'Check on WordPress Code Reference...', 'functionality-plugin' ) . '" rel="external noopener noreferrer">' . $name . '</a></code>';
    }

    $content = apply_filters( 'F2L_types', $type, $name, $content );

    return $content;
});