{"id":1851,"date":"2010-07-21T16:54:35","date_gmt":"2010-07-21T08:54:35","guid":{"rendered":"http:\/\/ygs.im\/?p=1851"},"modified":"2010-07-21T16:54:35","modified_gmt":"2010-07-21T08:54:35","slug":"php-substr%e6%88%aa%e5%8f%96%e4%b8%ad%e6%96%87%e4%b9%b1%e7%a0%81%e7%9a%84%e8%a7%a3%e5%86%b3%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/ygs.im\/?p=1851","title":{"rendered":"PHP substr \u622a\u53d6\u4e2d\u6587\u4e71\u7801\u7684\u89e3\u51b3\u65b9\u6cd5"},"content":{"rendered":"\n<p>\u6587\u7ae0\u9875\u9762\u7684 description \u662f\u4f7f\u7528 substr \u51fd\u6570\u6765\u622a\u53d6220\u5b57\u7b26\u7684\uff0c\u4f46\u662f\u6700\u540e\u4e00\u4e2a\u6c49\u5b57\u603b\u662f\u4e71\u7801\uff0c\u800c\u4e14\u622a\u53d6\u51fa\u6765\u7684\u957f\u5ea6\u4e5f\u4e0d\u6b63\u786e\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u795e\u5947\u7684 Google \u627e\u5230\u65b9\u6cd5\uff0c\u53ef\u80fd\u662f\u56e0\u4e3a <code>substr(string,start,length)<\/code>\uff0c\u4f1a\u5c06\u6c49\u5b57\u4ee5\u5b57\u7b26\u7684\u5f62\u5f0f\u622a\u65ad\uff0c\u800c\u9020\u6210\u4e71\u7801<\/p>\n\n\n\n<p>\u89e3\u51b3\u65b9\u6848\uff1a\u4f7f\u7528 PHP \u6269\u5c55\u5e93\u4e2d\u7684 mb_substr \u65b9\u6cd5\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u65b9\u6cd5\u5b9a\u4e49\uff1a<br><code>string mb_substr ( string str, int start &#91;, int length &#91;, string encoding]] )<\/code><\/code><\/pre>\n\n\n\n<p>\u6ce8\u610f\uff1a\u5728\u4f7f\u7528 mb_substr()\/mb_strcut \u6700\u540e\u8981\u52a0\u5165\u591a\u4e00\u4e2a\u53c2\u6570\uff0c\u4ee5\u8bbe\u5b9a\u5b57\u7b26\u4e32\u7684\u7f16\u7801\uff0c<\/p>\n\n\n\n<p>\u4f8b\u5982\uff1a<br>echo mb_substr(&#8216;\u539f\u672c\u4f1a\u51fa\u73b0\u4e71\u7801\u7684\u6c49\u5b57\uff01&#8217;, 0, 7, &#8216;utf-8&#8217;);<\/p>\n\n\n\n<p>\u518d\u5982\uff1a<br>$description = mb_substr(strip_tags($post-&gt;post_content),0,220,&#8217;utf-8&#8242;);<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u9875\u9762\u7684 description \u662f\u4f7f\u7528 substr \u51fd\u6570\u6765\u622a\u53d6220\u5b57\u7b26\u7684\uff0c\u4f46\u662f\u6700\u540e\u4e00\u4e2a\u6c49\u5b57\u603b\u662f\u4e71\u7801\uff0c\u800c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-1851","post","type-post","status-publish","format-standard","hentry","category-note"],"_links":{"self":[{"href":"https:\/\/ygs.im\/index.php?rest_route=\/wp\/v2\/posts\/1851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ygs.im\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ygs.im\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ygs.im\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ygs.im\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1851"}],"version-history":[{"count":0,"href":"https:\/\/ygs.im\/index.php?rest_route=\/wp\/v2\/posts\/1851\/revisions"}],"wp:attachment":[{"href":"https:\/\/ygs.im\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ygs.im\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ygs.im\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}