{"id":741,"date":"2023-02-02T11:22:31","date_gmt":"2023-02-02T03:22:31","guid":{"rendered":"http:\/\/blog.nonot.cn\/?p=741"},"modified":"2024-07-08T12:43:35","modified_gmt":"2024-07-08T04:43:35","slug":"php-%e4%bb%8e%e5%ad%97%e7%ac%a6%e4%b8%b2-php-%e4%b8%ad%e5%88%a0%e9%99%a4%e5%89%8d-3-%e4%b8%aa%e5%ad%97%e7%ac%a6%e5%92%8c%e5%90%8e-3-%e4%b8%aa%e5%ad%97%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/blog.nonot.cn\/index.php\/2023\/02\/02\/php-%e4%bb%8e%e5%ad%97%e7%ac%a6%e4%b8%b2-php-%e4%b8%ad%e5%88%a0%e9%99%a4%e5%89%8d-3-%e4%b8%aa%e5%ad%97%e7%ac%a6%e5%92%8c%e5%90%8e-3-%e4%b8%aa%e5%ad%97%e7%ac%a6\/","title":{"rendered":"php &#8211; \u4ece\u5b57\u7b26\u4e32 PHP \u4e2d\u5220\u9664\u524d 3 \u4e2a\u5b57\u7b26\u548c\u540e 3 \u4e2a\u5b57\u7b26"},"content":{"rendered":"<p>\u6211\u9700\u8981\u5220\u9664\u5b57\u7b26\u4e32\u7684\u524d 3 \u4e2a\u5b57\u6bcd\u548c\u5b57\u7b26\u4e32\u7684\u540e 3 \u4e2a\u5b57\u6bcd\u3002\u6211\u77e5\u9053\u6211\u53ef\u4ee5\u4f7f\u7528 substr() \u4ece\u67d0\u4e2a\u5b57\u7b26\u5f00\u59cb\uff0c\u4f46\u662f\u5982\u679c\u6211\u9700\u8981\u53bb\u9664\u7b2c\u4e00\u4e2a\u548c\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\uff0c\u6211\u4e0d\u786e\u5b9a\u6211\u662f\u5426\u771f\u7684\u53ef\u4ee5\u4f7f\u7528\u5b83\u3002\u6709\u4ec0\u4e48\u5efa\u8bae\u4e48\uff1f<\/p>\n<p>\u6700\u4f73\u7b54\u6848<\/p>\n<p>\u5c06\u8d1f\u503c\u4f5c\u4e3a length \u53c2\u6570(\u7b2c\u4e09\u4e2a\u53c2\u6570)\u4f20\u9012\u7ed9 substr() \uff0c\u6bd4\u5982:<\/p>\n<p>$result = substr($string, 3, -3);<br \/>\n\u6240\u4ee5\u8fd9\u4e2a:<\/p>\n<p>&lt;?php<br \/>\n$string = &#8220;Sean Bright&#8221;;<br \/>\n$string = substr($string, 3, -3);<br \/>\necho $string;<br \/>\n?&gt;<br \/>\n\u8f93\u51fa:<\/p>\n<p>n Bri<br \/>\n\u5173\u4e8ephp &#8211; \u4ece\u5b57\u7b26\u4e32 PHP \u4e2d\u5220\u9664\u524d 3 \u4e2a\u5b57\u7b26\u548c\u540e 3 \u4e2a\u5b57\u7b26\uff0c\u6211\u4eec\u5728Stack Overflow\u4e0a\u627e\u5230\u4e00\u4e2a\u7c7b\u4f3c\u7684\u95ee\u9898\uff1a https:\/\/stackoverflow.com\/questions\/7045618\/<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u9700\u8981\u5220\u9664\u5b57\u7b26\u4e32\u7684\u524d 3 \u4e2a\u5b57\u6bcd\u548c\u5b57\u7b26\u4e32\u7684\u540e 3 \u4e2a\u5b57\u6bcd\u3002\u6211&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-741","post","type-post","status-publish","format-standard","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/blog.nonot.cn\/index.php\/wp-json\/wp\/v2\/posts\/741","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.nonot.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.nonot.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.nonot.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.nonot.cn\/index.php\/wp-json\/wp\/v2\/comments?post=741"}],"version-history":[{"count":1,"href":"https:\/\/blog.nonot.cn\/index.php\/wp-json\/wp\/v2\/posts\/741\/revisions"}],"predecessor-version":[{"id":1129,"href":"https:\/\/blog.nonot.cn\/index.php\/wp-json\/wp\/v2\/posts\/741\/revisions\/1129"}],"wp:attachment":[{"href":"https:\/\/blog.nonot.cn\/index.php\/wp-json\/wp\/v2\/media?parent=741"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.nonot.cn\/index.php\/wp-json\/wp\/v2\/categories?post=741"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.nonot.cn\/index.php\/wp-json\/wp\/v2\/tags?post=741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}