{"id":4234,"date":"2023-11-03T01:30:42","date_gmt":"2023-11-03T00:30:42","guid":{"rendered":"https:\/\/tulipemedia.com\/?p=4234"},"modified":"2025-05-15T17:59:43","modified_gmt":"2025-05-15T15:59:43","slug":"%e9%95%bf%e5%ba%a6%e6%8f%90%e5%8f%96%e6%91%98%e5%bd%95wordpress%e5%87%bd%e6%95%b0php%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/tulipemedia.com\/zh\/longueur-extrait-excerpt-wordpress-fonction-code-php\/","title":{"rendered":"\u66f4\u6539 WordPress \u4e2d\u7684\u9ed8\u8ba4\u6458\u5f55\u957f\u5ea6"},"content":{"rendered":"

\u901a\u8fc7 the_excerpt() \u51fd\u6570\u7684 WordPress \u6458\u5f55\u662f WordPress \u535a\u5ba2\u4e2d\u7684\u5e16\u5b50\u7684\u7b80\u8981\u6458\u8981\uff0c\u8be5\u5e16\u5b50\u51fa\u73b0\u5728\u8c03\u7528\u7684\u4f4d\u7f6e\uff0c\u901a\u5e38\u5728\u5b58\u6863\u9875\u9762\uff08\u7c7b\u522b\u3001\u6807\u7b7e\u3001\u4f5c\u8005\u9875\u9762\uff09\u3001\u7ed3\u679c\u641c\u7d22\u4e0a\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5728\u4e3b\u9875\u4e0a\u60a8\u7f51\u7ad9\u7684\u9875\u9762\uff0c\u8fd8\u5305\u62ec RSS \u63d0\u8981\u4ee5\u53ca\u6709\u65f6\u901a\u8fc7\u7279\u5b9a\u6269\u5c55\u53d1\u9001\u5230\u793e\u4ea4\u7f51\u7edc\u7684\u5185\u5bb9\u3002<\/p>\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cWordPress \u4f7f\u7528\u6700\u591a 55 \u4e2a\u5355\u8bcd\u4f5c\u4e3a\u7247\u6bb5\u957f\u5ea6\u3002\u8bf7\u6ce8\u610f\uff0c\u67d0\u4e9b\u4e3b\u9898\u5141\u8bb8\u60a8\u901a\u8fc7\u201c\u4e2a\u6027\u5316\u201d\u529f\u80fd\u5b9a\u4e49\u6b64\u63d0\u53d6\uff0c\u4f46\u5176\u4ed6\u4e3b\u9898\u4e0d\u5141\u8bb8\uff0c\u6709\u65f6\u60a8\u4ecd\u7136\u9700\u8981\u901a\u8fc7\u4e00\u6bb5\u4ee3\u7801\u5bf9\u5176\u8fdb\u884c\u4e2a\u6027\u5316\u3002<\/p>\n

\u901a\u8fc7\u5b57\u6570\u7edf\u8ba1\u81ea\u5b9a\u4e49\u6458\u5f55\u957f\u5ea6\u7684\u529f\u80fd<\/h2>\n

\u8981\u589e\u52a0\u6216\u51cf\u5c11\u6b64\u63d0\u53d6\u7684\u5927\u5c0f\uff0c\u53ef\u4ee5\u5c06\u4e00\u4e9b\u5c0f\u6280\u5de7\u6dfb\u52a0\u5230\u4e3b\u9898\u7684functions.php\u6587\u4ef6\u4e2d\uff0c\u6216\u8005\u901a\u8fc7\u8bf8\u5982 \u4ee3\u7801\u7247\u6bb5<\/a>.<\/p>\n

\u51fd\u6570custom_excerpt_length($length) {<\/em>
\n\u8fd4\u56de 100\uff1b \/\/ \u5c06\u6b64\u6570\u5b57\u66f4\u6539\u4e3a\u6240\u9700\u7684\u5f02\u5e38\u957f\u5ea6<\/em>
\n}<\/em>
\nadd_filter('excerpt_length', 'custom_excerpt_length', 999);<\/em><\/p>\n

\u5728\u6b64\u4ee3\u7801\u7247\u6bb5\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a\u201ccustom_excerpt_length\u201d\u7684\u65b0\u51fd\u6570\uff0c\u5b83\u8c03\u7528 WordPress \u957f\u5ea6\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u5b9a\u4e49 WordPress \u5e16\u5b50\u6216\u9875\u9762\u6458\u5f55\u7684\u957f\u5ea6\uff0c\u4f8b\u5982\uff0c\u6211\u4eec\u901a\u8fc7\u201creturn\u201d\u6307\u4ee4\u5c06\u5176\u8bbe\u7f6e\u4e3a\u201c100\u201d\u4e2a\u5355\u8bcd\uff0c\u4e4b\u540e\u6211\u4eec\u6dfb\u52a0\u5e26\u6709\u53c2\u6570 999 \u7684\u65b0\u8fc7\u6ee4\u5668\uff0c\u4ee5\u786e\u4fdd\u5b83\u4f4d\u4e8e\u4e0e\u63d0\u53d6\u7684\u201c\u957f\u5ea6\u201d\u51fd\u6570\u6709\u77db\u76fe\u6307\u4ee4\u7684\u4efb\u4f55\u5176\u4ed6\u53ef\u80fd\u7684\u8fc7\u6ee4\u5668\u4e4b\u540e\u3002<\/p>\n

\u4f46\u8981\u5c0f\u5fc3\uff0c\u4e3a\u4e86\u5728\u4e3b\u9898\u65b9\u9762\u8003\u8651\u5230\u8fd9\u4e00\u70b9\uff0c\u8bf7\u786e\u4fdd\u60a8\u7684\u4e3b\u9898\u8c03\u7528\u8be5\u51fd\u6570 \u4f8b\u5916<\/em> \u901a\u8fc7\u4ee3\u7801\u60a8\u5e0c\u671b\u6587\u7ae0\u6458\u5f55\u51fa\u73b0\u5728\u5faa\u73af\u4e2d\u7684\u67d0\u4e2a\u4f4d\u7f6e <?php echo get_excerpt(); ?><\/em><\/p>\n

\u8fd8\u6709\u53e6\u4e00\u79cd\u65b9\u6cd5\u53ef\u4ee5\u6839\u636e\u6bb5\u843d\u6570\u81ea\u5b9a\u4e49 WordPress \u51fa\u7248\u7269\u6458\u5f55\u7684\u957f\u5ea6\u3002<\/p>\n

\u901a\u8fc7\u6bb5\u843d\u6570\u81ea\u5b9a\u4e49\u6458\u5f55\u957f\u5ea6\u7684\u529f\u80fd<\/h2>\n

\u5982\u679c\u60a8\u60f3\u907f\u514d\u5728\u4e2d\u95f4\u5207\u65ad\u53e5\u5b50\uff0c\u6b64\u529f\u80fd\u7279\u522b\u6709\u7528\u3002\u4e3a\u6b64\uff0c\u8bf7\u5c06\u8fd9\u6bb5\u4ee3\u7801\u590d\u5236\u5e76\u7c98\u8d34\u5230\u60a8\u7684\u201cfunctions.php\u201d\u6587\u4ef6\u4e2d\uff0c\u6216\u8005\u901a\u8fc7\u4ee3\u7801\u7247\u6bb5\u6269\u5c55\u6216\u4efb\u4f55\u5176\u4ed6\u5141\u8bb8\u5c06 PHP \u51fd\u6570\u6dfb\u52a0\u5230\u60a8\u7684 WordPress \u5b89\u88c5\u4e2d\u7684\u63d2\u4ef6\uff1a<\/p>\n

\u6dfb\u52a0\u8fc7\u6ee4\u5668<\/span>(<\/span> 'wp_trim_\u6458\u5f55'<\/span>,<\/span> '\u6211\u7684\u81ea\u5b9a\u4e49\u5f02\u5e38'<\/span>,<\/span> 10<\/span>,<\/span> 2<\/span> )<\/span>;
\n<\/span>\u529f\u80fd<\/span> \u6211\u7684\u81ea\u5b9a\u4e49\u5f02\u5e38<\/span>(<\/span>$\u6587\u672c<\/span>,<\/span> $raw_\u6458\u5f55<\/span>)<\/span> {
\n<\/span>\u5982\u679c<\/span>(<\/span> !<\/span> $raw_\u6458\u5f55<\/span> )<\/span> {
\n<\/span>$\u542b\u91cf<\/span> =<\/span> \u5e94\u7528\u8fc7\u6ee4\u5668<\/span>(<\/span> '\u5185\u5bb9'<\/span>,<\/span> \u83b7\u53d6\u5185\u5bb9<\/span>(<\/span>)<\/span> )<\/span>;
\n<\/span>$\u6587\u672c<\/span> =<\/span> \u540d\u8bcd<\/span>(<\/span> $\u542b\u91cf<\/span>,<\/span> 0<\/span>,<\/span> \u65af\u7279\u6ce2\u65af<\/span>(<\/span> $\u542b\u91cf<\/span>,<\/span> &#039;<\/p>&#039;<\/span> )<\/span> +<\/span> 4<\/span> )<\/span>;
\n<\/span>}
\n<\/span>\u8fd4\u56de<\/span> $\u6587\u672c<\/span>;<\/span><\/em><\/p>\n

\u4f7f\u7528 wp_trim_excerpt \u51fd\u6570\uff0cWordPress \u4f1a\u4ee5\u5355\u8bcd\u6216\u5b57\u7b26\u7684\u5f62\u5f0f\u8986\u76d6\u6458\u5f55\u7684\u957f\u5ea6\uff0c\u5e76\u5c06\u7b2c\u4e00\u6bb5\u89c6\u4e3a\u6458\u5f55\uff0c\u751a\u81f3\u53ef\u4ee5\u4e0e Elementor \u914d\u5408\u4f7f\u7528\u3002<\/p>","protected":false},"excerpt":{"rendered":"

L’extrait WordPress via la fonction the_excerpt() est un bref r\u00e9sum\u00e9 d’une publication de votre blog WordPress qui appara\u00eet l\u00e0 o\u00f9 elle est appel\u00e9e, g\u00e9n\u00e9ralement sur les pages d’archives (cat\u00e9gories, tag, pages d’auteur), les r\u00e9sultats de recherche et, dans certains cas, sur la page d’accueil de votre site, mais aussi dans le flux RSS et dans […]<\/p>\n","protected":false},"author":17,"featured_media":1033,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[164],"class_list":["post-4234","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-snippets","tag-tips-wordpress"],"_links":{"self":[{"href":"https:\/\/tulipemedia.com\/zh\/wp-json\/wp\/v2\/posts\/4234","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tulipemedia.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tulipemedia.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tulipemedia.com\/zh\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/tulipemedia.com\/zh\/wp-json\/wp\/v2\/comments?post=4234"}],"version-history":[{"count":2,"href":"https:\/\/tulipemedia.com\/zh\/wp-json\/wp\/v2\/posts\/4234\/revisions"}],"predecessor-version":[{"id":4255,"href":"https:\/\/tulipemedia.com\/zh\/wp-json\/wp\/v2\/posts\/4234\/revisions\/4255"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tulipemedia.com\/zh\/wp-json\/wp\/v2\/media\/1033"}],"wp:attachment":[{"href":"https:\/\/tulipemedia.com\/zh\/wp-json\/wp\/v2\/media?parent=4234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tulipemedia.com\/zh\/wp-json\/wp\/v2\/categories?post=4234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tulipemedia.com\/zh\/wp-json\/wp\/v2\/tags?post=4234"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}