dongxing7083 2017-07-13 15:48
浏览 42

前端开发人员试图理解Wordpress / PHP代码中的奇怪语法

I'm a front end designer starting to dabble in backend stuff.

I am starting to create a wordpress site for a side business of mine and am using a couple of different plugins. In order for me to successfully use this plugin, I have to edit one of the plugins template files. When I use a certain option in the plugin (Pulling a image down from amazon, tumblr, ebay, instagram, etc...), it pulls down the correct image but inserts a hard coded width and height in the html.

This is great for rendering of the page quick, but I want to change the width and height of the image in the html.

Here's the kicker. In the php, there is a template file in the plugin where i see it pulls this from. It's 50% regular html code and 50% php in the template file.

(So in the plugin settings, if you choose this option, it pulls from that image template.)

In the template, there is a section for the image tag. Which places the <img xxxxxx src=xxxx width=xxxxx height=xxxxx alt=xxxxxx> code into the html.

Here is how the code reads.

 * Template:    Image and Prices
 * Stylesheets: basic.css, image.css
 * Scripts:     popover.js

$price_l = isset($item['attributes']['ListPrice']) ? $item['attributes']['ListPrice'] : false;
$price_c = isset($item['offer']) && isset($item['offer']['price']) ? $item['offer']['price'] : false;
$price_l_numeric = floatval(preg_replace('#[^\d.]#', '', $price_l));
$price_c_numeric = floatval(preg_replace('#[^\d.]#', '', $price_c));

<div class="easyazon-block-information">
    <?php if($image_atts) { ?>
    <div class="easyazon-block-image-container">
        <?php printf('<a %s><img %s /></a>', easyazon_collapse_attributes($link_atts), easyazon_collapse_attributes($image_atts)); ?>
    <?php } ?>

    <div class="easyazon-block-information-title"><?php printf('<a %s>%s</a>', easyazon_collapse_attributes($link_atts), esc_html($item['title'])); ?></div>

    <div class="easyazon-block-information-prices">
        <?php if($price_l && (false === $price_c || $price_l_numeric >= $price_c_numeric)) { ?>
        <div class="easyazon-block-information-price"><?php printf('<td class="easyazon-block-information-price-label">%s:</td> <td class="easyazon-block-information-price-value"><a %s>%s</a></td>', __('List Price'), easyazon_collapse_attributes($link_atts), esc_html($price_l)); ?></div>
        <?php } ?>

        <?php if($price_c && 'N/A' !== $price_c) { ?>
        <div class="easyazon-block-information-price"><?php printf('<td class="easyazon-block-information-price-label">%s:</td> <td class="easyazon-block-information-price-value"><a %s>%s</a></td>', __('Price'), easyazon_collapse_attributes($link_atts), esc_html($price_c)); ?></div>
        <?php } ?>

        <?php if($item['offer'] && $item['offer']['saved'] && 'N/A' !== $item['offer']['saved']) { ?>
        <div class="easyazon-block-information-price"><?php printf('<td class="easyazon-block-information-price-label">%s:</td> <td class="easyazon-block-information-price-value"><a %s>%s</a></td>', __('You Save'), easyazon_collapse_attributes($link_atts), esc_html($item['offer']['saved'])); ?></div>
        <?php } ?>

    <?php if($cta_atts) { ?>
    <div class="easyazon-block-information-cta">
        <?php $cta_atts['class'][] = 'easyazon-block-cta'; ?>
        <?php printf('<a %s><img %s /></a>', easyazon_collapse_attributes($link_atts), easyazon_collapse_attributes($cta_atts)); ?>
    <?php } ?>

    <div class="easyazon-block-information-price-disclaimer">
        <small class="easyazon-price-disclaimer" data-content="<?php printf(__('Prices are accurate as of %1$s. Product prices and availability are subject to change. Any price and availablility information displayed on Amazon at the time of purchase will apply to the purchase of any products.'), date('F j, Y \a\t g:i A', $item['fetched'] + get_option('gmt_offset') * HOUR_IN_SECONDS)); ?>"><?php _e('Price Disclaimer'); ?></small>

What does the s% mean? How does this code pull in all this information for the image. Is it located somewhere else in the plugin? There's lots of other folder. I couldn't personally find it, maybe I didn't look hard enough?

  • 写回答

1条回答 默认 最新

  • dpwtr666638 2017-07-13 23:40

    The %s is a type specifier which means it will treat it as a string. It uses the format argument with these specifies that act as slots that the following arguments will be slotted into.

    $format = 'some digit %d and some string %s'; echo sprintf($format, $digit, $string);

    本回答被题主选为最佳回答 , 对您是否有帮助呢?



  • ¥88 用uniapp写一个多端的程序,用到高德地图,用高德的JSAPI吗?
  • ¥20 关于#c++#的问题:水果店管理系统
  • ¥30 dbLinq最新版linq sqlite
  • ¥20 对D盘进行分盘之前没有将visual studio2022卸载掉,现在该如何下载回来
  • ¥15 完成虚拟机环境配置,还有安装kettle
  • ¥15 2024年全国大学生数据分析大赛A题:直播带货与电商产品的大数据分析 问题5. 请设计一份优惠券的投放策略,需要考虑优惠券的数量、优惠券的金额、投放时间段和投放商品种类等因素。求具体的python代码
  • ¥15 有人会搭建生鲜配送自营+平台的管理系统吗
  • ¥15 用matlab写代码
  • ¥30 motoradmin系统的多对多配置
  • ¥15 求组态王串口自定义通信配置方法或代码?