如何在特定的Wordpress页面上运行JavaScript函数？
如何在特定的Wordpress页面上运行JavaScript函数？
提问于 2018-07-14 06:46:04
我试图在特定的Wordpress页面上运行以下脚本，但它不起作用。该脚本可以工作，但当不应用于特定页面时。是的，页面id是正确的。我做错什么了？提前谢谢。
<?php if (is_page('page-id-48857') ):?>
<script>
jQuery(document).ready(function ($) {
$(function () {
var $content = $('#jsonContent');
var data = {
rss_url: 'https://inside.calpoly.edu/feed'
};
$.get('https://api.rss2json.com/v1/api.json', data, function (response) {
if (response.status == 'ok') {
var output = '';
$.each(response.items, function (k, item) {
output += '<div class="post-card category-medium published">';
//output += '<h3 class="date">' + $.format.date(item.pubDate, "dd<br>MMM") + "</h4>";
var tagIndex = item.description.indexOf('<img'); // Find where the img tag starts
var srcIndex = item.description.substring(tagIndex).indexOf('src=') + tagIndex; // Find where the src attribute starts
var srcStart = srcIndex + 5; // Find where the actual image URL starts; 5 for the length of 'src="'
var srcEnd = item.description.substring(srcStart).indexOf('"') + srcStart; // Find where the URL ends
var src = item.description.substring(srcStart, srcEnd); // Extract just the URL
output += '<p class="post-meta">';
//output += '<span class="published">' + item.pubDate + '</span>';
output += '<a href="https://inside.calpoly.edu/" target="_blank">@inside.calpoly.edu</span></a>';
output += '</p>';
output += '<h2 class="entry-title">' + item.title + '</h2>';
//output += '<div class="post-meta"><span>By ' + item.author + '</span></div>';
var yourString = item.description.replace(/<img[^>]*>/g,""); //replace with your string.
var maxLength = 300 // maximum number of characters to extract
//trim the string to the maximum length
var trimmedString = yourString.substr(0, maxLength);
//re-trim if we are in the middle of a word
trimmedString = trimmedString.substr(0, Math.min(trimmedString.length, trimmedString.lastIndexOf(" ")))
output += '<div class="excerpt">'+trimmedString + '</div>';
output += '<a href="'+ item.link + '" class="more-link cpc-button activeghostdark small">Read More</a>';
output += '<a class="entry-featured-image-url" href="'+ item.link + '"><img src="' + src + '"></a>';
output += '</div>';
return k < 1;
});
$content.html(output);
}
});
});
</script>
<?php endif; ?>回答 1
Stack Overflow用户
回答已采纳
发布于 2018-07-14 07:09:00
您正在向is_page()函数传递无效的ID。
根据您的代码示例，您应该使用一个整数作为您的帖子ID，而不是字符串，也不是'page-id‘部分。
https://developer.wordpress.org/reference/functions/is_page/
下面是一些示例用法：
// When any single Page is being displayed.
is_page();
// When Page 42 (ID) is being displayed.
is_page( 42 );
// When the Page with a post_title of "Contact" is being displayed.
is_page( 'Contact' );
// When the Page with a post_name (slug) of "about-me" is being displayed.
is_page( 'about-me' );在您的情况下，您应该使用：
<?php if (is_page(48857) ):?>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51333685
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