Developer's Roundtable Notes

<?php

if( ! array_key_exists( 'swer-paypal-shortcodes', $GLOBALS ) ) { 
    class SWER_paypal_shortcodes{

        function __construct(){
            add_shortcode('paypal', array( $this, 'swer_paypal_shortcode') );
            add_action( 'admin_init', array( &$this, '_admin_init' ) );
        }

        function _admin_init(){
            add_settings_section( 'swer_paypal_shortcode', 'PayPal Shortcode', array( &$this, 'options_header'), 'writing');

            add_settings_field( 'swer_paypal_email', 'Email', array( &$this, 'options_paypal_email'), 'writing', 'swer_paypal_shortcode');
            register_setting( 'writing', 'swer_paypal_email' );

            add_settings_field( 'swer_paypal_currency', 'Currency', array( &$this, 'options_paypal_currency'), 'writing', 'swer_paypal_shortcode');
            register_setting( 'writing', 'swer_paypal_currency' );
            
            add_settings_field( 'swer_paypal_text_add', 'ADD Text', array( &$this, 'options_paypal_text_add'), 'writing', 'swer_paypal_shortcode');
            register_setting( 'writing', 'swer_paypal_text_add' );

            add_settings_field( 'swer_paypal_text_view', 'VIEW Text', array( &$this, 'options_paypal_text_view'), 'writing', 'swer_paypal_shortcode');
            register_setting( 'writing', 'swer_paypal_text_view' );
        }


        function options_header(){
            echo 'Add Item: <code>[paypal type="add" name="Item Name" amount="12.99"]</code>. View Items: <code>[paypal type="view"]</code>';
        }


        function options_paypal_email(){
            $mail = get_option( 'swer_paypal_email' );
            $value = ($mail!='') ? $mail : '';
            echo '<input type="text" name="swer_paypal_email" id="swer_paypal_email" value="'.$value.'"/>';
        }

        function options_paypal_currency(){
            $mail = get_option( 'swer_paypal_currency' );
            $value = ($mail!='') ? $mail : '';
            echo '<input type="text" name="swer_paypal_currency" id="swer_paypal_currency" value="'.$value.'"/>';
        }

        function options_paypal_text_add(){
            $text = get_option( 'swer_paypal_text_add' );
            $value = ( $text!=='' ) ? $text : '';
            echo '<input type="text" name="swer_paypal_text_add" id="swer_paypal_text_add" value="'.$value.'"/>';
        }

        function options_paypal_text_view(){
            $text = get_option( 'swer_paypal_text_view' );
            $value = ( $text!=='' ) ? $text : '';
            echo '<input type="text" name="swer_paypal_text_view" id="swer_paypal_text_view" value="'.$value.'"/>';
        }



     
        // [paypal type="add" name="Item Name" amount="12.99"]
        // [paypal type="view"]
        function swer_paypal_shortcode($atts) {

            extract( shortcode_atts( array(
               'type' => 'paynow',
               'name' => '',
               'amount' => ''
               ), $atts ) );


        switch( $type ):

        	case "add":	
        	case "paynow":
        	$code = '
                <form name="paypal-cart" action="https://www.paypal.com/cgi-bin/webscr" method="post">
                <input type="hidden" name="cmd" value="_xclick" />
        		<input type="hidden" name="business" value="'.get_option('swer_paypal_email',true).'">
        		<input type="hidden" name="currency_code" value="'.get_option('swer_paypal_currency',true).'">
        		<input type="hidden" name="item_name" value="'.$name.'">
        		<input type="hidden" name="amount" value="'.$amount.'">

                <input type="hidden" name="no_shipping" value="2" />
                <input type="hidden" name="no_note" value="1" />
                <input type="hidden" name="bn" value="IC_Sample" />

        		<input type="image" src="https://www.paypal.com/en_US/i/btn/btn_paynowCC_LG.gif" border="0" name="submit" alt="'.get_option('swer_paypal_text_add',true).'">
        		<input type="hidden" name="add" value="1">
        		</form>';
        	break;

        	case "view":
        	$code = '
        		<form name="_xclick" target="paypal" action="https://www.paypal.com/cgi-bin/webscr" method="post">
        		<input type="hidden" name="cmd" value="_cart">
        		<input type="hidden" name="business" value="'.get_option('swer_paypal_email',true).'">
        		<input type="image" src="https://www.paypal.com/en_US/i/btn/view_cart_new.gif" border="0" name="submit" alt="'.get_option('swer_paypal_text_view',true).'">
        		<input type="hidden" name="display" value="1">
        		</form>
        	';
        	break;	
        endswitch;
        return $code;	
        }
     
        
    }
    $GLOBALS['swer-paypal-shortcodes'] = new SWER_paypal_shortcodes();
}

<?php
/**
 * Plugin Name: PayPal Button Shortcode
 * Description: PayPal Buy Now button plugin with shortcode.
 * Version: 1.0
 * Author: Diana Nichols
 * Author URI: http://www.lavenderthreads.com
 */

function paypal_shortcode( $atts ) {

extract( shortcode_atts( 
	array( 
		'amount' => '50', 
		'name' => 'Payment to MyCompany' 
		), 
		$atts 
	));

return '<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
                <div class="paypal-donations">
                    <input type="hidden" name="cmd" value="_xclick">
                    <input type="hidden" name="business" value="email@mydomain.com">
                    <input type="hidden" name="amount" value="' . $amount. '">
					<input type="hidden" name="item_name" value="'.$name.'">
                    <input type="hidden" name="rm" value="0">
                    <input type="hidden" name="currency_code" value="USD">
                    <input type="image" src="https://www.paypal.com/en_US/i/btn/btn_buynow_sm.gif" name="submit" alt="PayPal - The safer, easier way to pay online">
                    <img alt="" src="https://www.paypal.com/en_US/i/scr/pixel.gif" width="1" height="1">
                </div>
            </form>';
}
add_shortcode( 'ppbutton', 'paypal_shortcode' );

[ppbutton name="my product" amount="100"]

function lt_new_excerpt_more($more) {
   global $post;
   return '<br><a class="moretag" href="'. get_permalink($post->ID) . '"> [Read More...]</a>';
}
add_filter('excerpt_more', 'lt_new_excerpt_more');

// copied from https://wordpress.org/plugins/remove-query-strings-from-static-resources/  
function lt_remove_query_strings_1( $src ) {
	$rqs = explode( '?ver', $src );
    return $rqs[0];
}
function lt_remove_query_strings_2( $src ) {
	$rqs = explode( '&ver', $src );
    return $rqs[0];
}
add_filter( 'script_loader_src', 'lt_remove_query_strings_1', 15, 1 );
add_filter( 'style_loader_src', 'lt_remove_query_strings_1', 15, 1 );
add_filter( 'script_loader_src', 'lt_remove_query_strings_2', 15, 1 );
add_filter( 'style_loader_src', 'lt_remove_query_strings_2', 15, 1 );

function lt_add_avatar( $avatar_defaults ) {
    $myavatar = 'path-to-my-image/avatar.jpg';
    $avatar_defaults[$myavatar] = 'New Avatar';
    return $avatar_defaults;
}
add_filter( 'avatar_defaults', ‘lt_add_avatar' );

<?php
/**
 * Plugin Name: MySite.com Functions 
 * Description: Some functions for MySite.com: redirect non-admin users to the front end, add read more links, remove version query strings from URLs
 * Author: Diana Nichols
 * Author URI: http://LavenderThreads.com
 */

<?php
/**
 * Plugin Name: MySite.com Functions 
 * Description: Some functions for MySite.com: redirect non-admin users to the front end, add read more links, remove version query strings from URLs
 * Author: Diana Nichols
 * Author URI: http://LavenderThreads.com
 */

//custom avatar
function dw_addgravatar( $avatar_defaults ) {
    $myavatar = content_url() . '/uploads/avatar.jpg';
    $avatar_defaults[$myavatar] = 'New Avatar';
    return $avatar_defaults;
    }
add_filter( 'avatar_defaults', 'dw_addgravatar' );


// Puts link in excerpts more tag
function lt_new_excerpt_more($more) {
    global $post;
    return '<br><a class="moretag" href="'. get_permalink($post->ID) . '"> [Read More...]</a>';
}
add_filter('excerpt_more', 'lt_new_excerpt_more');


//remove query strings from script urls (for load speed)
//this function was copied from https://wordpress.org/plugins/remove-query-strings-from-static-resources/ 
function lt_remove_query_strings_1( $src ) {
	$rqs = explode( '?ver', $src );
    return $rqs[0];
}
function lt_remove_query_strings_2( $src ) {
	$rqs = explode( '&ver', $src );
    return $rqs[0];
}
add_filter( 'script_loader_src', 'lt_remove_query_strings_1', 15, 1 );
add_filter( 'style_loader_src', 'lt_remove_query_strings_1', 15, 1 );
add_filter( 'script_loader_src', 'lt_remove_query_strings_2', 15, 1 );
add_filter( 'style_loader_src', ';t_remove_query_strings_2', 15, 1 );