{"id":30926,"date":"2024-01-28T22:51:53","date_gmt":"2024-01-23T03:18:03","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e9%80%9a%e8%bf%87%e4%bd%bf%e7%94%a8php%e7%9a%84startswith-endswith%e5%87%bd%e6%95%b0\/"},"modified":"2025-08-12T21:26:07","modified_gmt":"2025-08-12T13:26:07","slug":"%e9%80%9a%e8%bf%87%e4%bd%bf%e7%94%a8php%e7%9a%84startswith-endswith%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e9%80%9a%e8%bf%87%e4%bd%bf%e7%94%a8php%e7%9a%84startswith-endswith%e5%87%bd%e6%95%b0\/","title":{"rendered":"\u901a\u8fc7\u4f7f\u7528PHP\u7684StartsWith\/EndsWith\u51fd\u6570"},"content":{"rendered":"<p>\u6211\u4f1a\u4e0a\u4f20\u4f7f\u7528 PHP \u7248\u672c\u7684 startsWith \u548c endsWith\uff0c\u5728\u8fc7\u53bb\u5199\u8fc7\u73b0\u5728\u4ecd\u7ecf\u5e38\u4f7f\u7528\u7684\u3002<br \/>\n\u6bcf\u6b21\u90fd\u5199 strpos \u4e5f\u4e0d\u662f\u4e2a\u597d\u529e\u6cd5\uff0c\u6240\u4ee5\u6211\u7528\u8fd9\u79cd\u65b9\u5f0f\u5b9e\u73b0\u3002<\/p>\n<h2>\u6211\u5c1d\u8bd5\u5199\u4e00\u4e2astartsWith\u51fd\u6570<\/h2>\n<pre class=\"post-pre\"><code><span class=\"k\">function<\/span> <span class=\"n\">startsWith<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"p\">(<\/span><span class=\"nb\">strpos<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"o\">===<\/span> <span class=\"mi\">0<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u6211\u8a66\u8457\u5beb\u51fa\u4e86\u201cendsWith\u201d\u3002<\/h2>\n<p>\u5982\u679c\u4e0d\u4f7f\u7528strrpos\u7f16\u5199\u7684\u8bdd\uff0c\u4e5f\u60f3\u5199\u4e00\u4e2a\u7c7b\u4f3c\u7684EndsWith\u51fd\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">function<\/span> <span class=\"n\">endsWith<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"p\">(<\/span><span class=\"nb\">strlen<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">)<\/span> <span class=\"o\">&gt;<\/span> <span class=\"nb\">strlen<\/span><span class=\"p\">(<\/span><span class=\"nv\">$needle<\/span><span class=\"p\">))<\/span> <span class=\"o\">?<\/span> <span class=\"p\">(<\/span><span class=\"nb\">substr<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">,<\/span> <span class=\"o\">-<\/span><span class=\"nb\">strlen<\/span><span class=\"p\">(<\/span><span class=\"nv\">$needle<\/span><span class=\"p\">))<\/span> <span class=\"o\">==<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"o\">:<\/span> <span class=\"kc\">false<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u771f\u662f\u5199\u5f97\u592a\u96be\u61c2\u4e86\u554a&#8230;\u6211\u6709\u4e9b\u6cae\u4e27\u7684\u5fc3\u60c5&#8230;\u5982\u679chaystack\u7684\u957f\u5ea6\u6bd4needle\u5927\uff0c\u5c31\u4ecehaystack\u7684\u672b\u5c3e\u63d0\u53d6\u51fa\u4e0eneedle\u957f\u5ea6\u76f8\u540c\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u6bd4\u8f83\uff0c\u5982\u679c\u76f8\u540c\u5219\u8fd4\u56deTRUE\uff0c\u5426\u5219\u8fd4\u56deFALSE\u3002<\/p>\n<p>\u6211\u4e2a\u4eba\u4f7f\u7528\u7684\u51fd\u6570\u662f\u5c06strlen\u51fd\u6570\u6539\u4e3amb_strlen\u51fd\u6570\uff0c\u4ee5\u4fbf\u652f\u6301\u591a\u5b57\u8282\u5b57\u7b26\u3002\u4f46\u662f\u5728\u6211\u7684\u73af\u5883\u4e2d\uff0c\u5373\u4f7f\u5c06mb_strlen\u6539\u56destrlen\u4e5f\u80fd\u6b63\u5e38\u8fd0\u884c\u7684\u6837\u5b50\u2026\u3002<\/p>\n<blockquote><p>\u5982\u679c\u4f7f\u7528UTF8\u5904\u7406\u5b57\u7b26\u7684\u73af\u5883\uff0c\u53ef\u4ee5\u653e\u5fc3\u4f7f\u7528strlen\u3002<\/p><\/blockquote>\n<h3>\u770b\u4e00\u4e0b strrpos\u3002<\/h3>\n<blockquote><p>PHP: strrpos<\/p>\n<p>(PHP 4, PHP 5, PHP 7)<\/p>\n<p>strrpos \u2014 \u5728\u5b57\u7b26\u4e32\u4e2d\u67e5\u627e\u5b50\u5b57\u7b26\u4e32\u6700\u540e\u51fa\u73b0\u7684\u4f4d\u7f6e<\/p>\n<p>\u63cf\u8ff0<\/p>\n<p>strrpos<br \/>\nint strrpos ( string $haystack , string $needle [, int $offset = 0 ] )<\/p>\n<p>\u5728\u5b57\u7b26\u4e32 haystack \u4e2d\u67e5\u627e\u5b50\u5b57\u7b26\u4e32 needle \u6700\u540e\u51fa\u73b0\u7684\u4f4d\u7f6e\u3002<\/p><\/blockquote>\n<p>\u7531\u4e8estrrpos\u51fd\u6570\u8fd4\u56de\u503c\u662f\u76f8\u5bf9\u4e8e\u5b57\u7b26\u4e32\u5f00\u5934\u7684\u4f4d\u7f6e\uff0c\u6240\u4ee5\u5982\u679c\u8981\u5c06\u5176\u7528\u4f5cendsWith\u51fd\u6570\u4f7f\u7528\uff0c\u9700\u8981\u7a0d\u52a0\u5904\u7406\u3002<\/p>\n<h3>\u5c1d\u8bd5\u4f7f\u7528strrpos\u51fd\u6570\u6765\u7f16\u5199<\/h3>\n<pre class=\"post-pre\"><code><span class=\"k\">function<\/span> <span class=\"n\">endsWith<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"p\">(<\/span><span class=\"nb\">strrpos<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"o\">===<\/span> <span class=\"nb\">strlen<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">)<\/span> <span class=\"o\">-<\/span> <span class=\"nb\">strlen<\/span><span class=\"p\">(<\/span><span class=\"nv\">$needle<\/span><span class=\"p\">));<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6bd4\u8d77\u4e4b\u524d\u4f7f\u7528 substr \u7684\u65b9\u6cd5\uff0c\u73b0\u5728\u7684\u65b9\u5f0f\u66f4\u52a0\u7b80\u6d01\u6e05\u6670\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">function<\/span> <span class=\"n\">endsWith<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"p\">(<\/span><span class=\"nb\">strrpos<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"o\">===<\/span> <span class=\"nb\">strlen<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">)<\/span> <span class=\"o\">-<\/span> <span class=\"nb\">strlen<\/span><span class=\"p\">(<\/span><span class=\"nv\">$needle<\/span><span class=\"p\">));<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">foreach<\/span><span class=\"p\">(<\/span><span class=\"k\">array<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"e\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"ge\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"oge\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"hoge\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"hog\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"hogehoge\"<\/span><span class=\"p\">)<\/span> <span class=\"k\">as<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">echo<\/span> <span class=\"nf\">endsWith<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"hoge\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"o\">?<\/span> <span class=\"s2\">\"TRUE\"<\/span> <span class=\"o\">:<\/span> <span class=\"s2\">\"FALSE\"<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"k\">echo<\/span> <span class=\"s2\">\"<\/span><span class=\"se\">\\n<\/span><span class=\"s2\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"kc\">TRUE<\/span>\r\n<span class=\"kc\">TRUE<\/span>\r\n<span class=\"kc\">TRUE<\/span>\r\n<span class=\"kc\">TRUE<\/span>\r\n<span class=\"kc\">FALSE<\/span>\r\n<span class=\"kc\">FALSE<\/span>\r\n<\/code><\/pre>\n<p>\u4f60\u7684\u52a8\u4f5c\u5df2\u7ecf\u53d8\u5f97\u6709\u89c4\u5f8b\u4e86\uff01<\/p>\n<h3>\u8bd5\u8bd5\u770b\u653e\u5165\u4e00\u4e9b\u591a\u5b57\u8282\u5b57\u7b26<\/h3>\n<pre class=\"post-pre\"><code><span class=\"k\">function<\/span> <span class=\"n\">endsWith<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"p\">(<\/span><span class=\"nb\">strrpos<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"o\">==<\/span> <span class=\"nb\">strlen<\/span><span class=\"p\">(<\/span><span class=\"nv\">$haystack<\/span><span class=\"p\">)<\/span> <span class=\"o\">-<\/span> <span class=\"nb\">strlen<\/span><span class=\"p\">(<\/span><span class=\"nv\">$needle<\/span><span class=\"p\">));<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">foreach<\/span><span class=\"p\">(<\/span><span class=\"k\">array<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"e\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"ge\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"\u3052ge\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"e\u3052ge\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"ge\u3052ge\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"hog\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"hoge\u3052ge\"<\/span><span class=\"p\">)<\/span> <span class=\"k\">as<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">echo<\/span> <span class=\"nf\">endsWith<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"hoge\u3052ge\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$needle<\/span><span class=\"p\">)<\/span> <span class=\"o\">?<\/span> <span class=\"s2\">\"TRUE\"<\/span> <span class=\"o\">:<\/span> <span class=\"s2\">\"FALSE\"<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"k\">echo<\/span> <span class=\"s2\">\"<\/span><span class=\"se\">\\n<\/span><span class=\"s2\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"kc\">TRUE<\/span>\r\n<span class=\"kc\">TRUE<\/span>\r\n<span class=\"kc\">TRUE<\/span>\r\n<span class=\"kc\">TRUE<\/span>\r\n<span class=\"kc\">TRUE<\/span>\r\n<span class=\"kc\">FALSE<\/span>\r\n<span class=\"kc\">TRUE<\/span>\r\n<\/code><\/pre>\n<p>\u4e0d\u77e5\u9053\u4e3a\u4ec0\u4e48\u6211\u611f\u89c9\u4e0d\u592a\u6ee1\u610f\uff0c\u4f46\u7ed3\u679c\u8fd8\u662f\u7b26\u5408\u671f\u671b\uff01<\/p>\n<p>\u7531\u4e8e\u5bf9\u591a\u5b57\u8282\u5b57\u7b26\u76f8\u5173\u7684\u95ee\u9898\u6709\u70b9\u62c5\u5fc3\uff0c\u6240\u4ee5\u7a0d\u540e\u4f1a\u8fdb\u884c\u8c03\u67e5\u5e76\u6dfb\u52a0\u4fe1\u606f\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4f1a\u4e0a\u4f20\u4f7f\u7528 PHP \u7248\u672c\u7684 startsWith \u548c endsWith\uff0c\u5728\u8fc7\u53bb\u5199\u8fc7\u73b0\u5728\u4ecd\u7ecf\u5e38\u4f7f\u7528\u7684\u3002 \u6bcf\u6b21\u90fd [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-30926","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u901a\u8fc7\u4f7f\u7528PHP\u7684StartsWith\/EndsWith\u51fd\u6570 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u901a\u8fc7\u4f7f\u7528PHP\u7684StartsWith\/EndsWith\u51fd\u6570\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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