{"id":47718,"date":"2024-12-02T10:41:39","date_gmt":"2024-12-02T02:41:39","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47718\/"},"modified":"2024-12-02T10:41:39","modified_gmt":"2024-12-02T02:41:39","slug":"php-%e5%87%bd%e6%95%b0%e5%bc%95%e7%94%a8%e5%8f%82%e6%95%b0%e7%9a%84%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47718\/","title":{"rendered":"PHP \u51fd\u6570\u5f15\u7528\u53c2\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u51fd\u6570\u5f15\u7528\u53c2\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7<\/h1>\n<p>\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aPHP \u51fd\u6570\u5f15\u7528\u53c2\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7\u300b\uff0c\u8986\u76d6\u4e86\u6587\u7ae0\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002<\/p>\n<p>PHP \u51fd\u6570\u5f15\u7528\u53c2\u6570\u4f18\u5316\u6280\u5de7\uff1a\u4f7f\u7528\u5f15\u7528\u53c2\u6570\uff08&amp;\uff09\u4f20\u9012\u5927\u6570\u636e\u5bf9\u8c61\u6216\u6570\u7ec4\uff0c\u907f\u514d\u6602\u8d35\u7684\u62f7\u8d1d\u64cd\u4f5c\u3002\u660e\u786e\u6587\u6863\u5316\u5f15\u7528\u53c2\u6570\u7684\u884c\u4e3a\uff0c\u8c28\u614e\u4f7f\u7528\uff0c\u4ec5\u5728\u5fc5\u8981\u65f6\u4f7f\u7528\u3002\u4f18\u5148\u5c06\u5f15\u7528\u53c2\u6570\u4f5c\u4e3a\u51fd\u6570\u7684\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u3002\u4f7f\u7528 PHP 7+ \u7684\u53ea\u8bfb\u5f15\u7528\uff08readonly\uff09\uff0c\u9632\u6b62\u51fd\u6570\u610f\u5916\u4fee\u6539\u539f\u59cb\u53d8\u91cf\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729932082671cab32a8958.jpg\" class=\"aligncenter\" title=\"PHP \u51fd\u6570\u5f15\u7528\u53c2\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7\u63d2\u56fe\" alt=\"PHP \u51fd\u6570\u5f15\u7528\u53c2\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u5f15\u7528\u53c2\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7<\/strong><\/p>\n<p><strong>\u7b80\u4ecb<\/strong><\/p>\n<p>\u5728 PHP \u4e2d\uff0c\u51fd\u6570\u53c2\u6570\u901a\u5e38\u4f1a\u4ee5\u503c\u4f20\u9012\u7684\u65b9\u5f0f\u8fdb\u884c\u4f20\u9012\u3002\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5bf9\u5927\u6570\u636e\u91cf\u5bf9\u8c61\u6216\u6570\u7ec4\u8fdb\u884c\u503c\u4f20\u9012\uff0c\u4f1a\u9020\u6210\u6027\u80fd\u95ee\u9898\u3002\u5f15\u7528\u53c2\u6570\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u4f46\u5fc5\u987b\u5c0f\u5fc3\u4f7f\u7528\uff0c\u5426\u5219\u4f1a\u5bfc\u81f4\u610f\u5916\u7684\u526f\u4f5c\u7528\u3002<\/p>\n<p><strong>\u5f15\u7528\u53c2\u6570\u7684\u539f\u7406<\/strong><\/p>\n<p>\u5f15\u7528\u53c2\u6570\u901a\u8fc7 <code>&amp;<\/code> \u7b26\u53f7\u4f20\u9012\uff0c\u5b9e\u9645\u4e0a\u662f\u5c06\u539f\u59cb\u53d8\u91cf\u7684\u5730\u5740\u4f20\u9012\u7ed9\u51fd\u6570\u3002\u8fd9\u610f\u5473\u7740\u51fd\u6570\u5bf9\u53c2\u6570\u7684\u4efb\u4f55\u4fee\u6539\u90fd\u4f1a\u53cd\u6620\u5728\u539f\u59cb\u53d8\u91cf\u4e0a\u3002<\/p>\n<p><strong>\u4f18\u70b9<\/strong><\/p>\n<ul>\n<li>\u907f\u514d\u5bf9\u5927\u578b\u6570\u636e\u7ed3\u6784\u8fdb\u884c\u6602\u8d35\u7684\u62f7\u8d1d\u64cd\u4f5c\u3002<\/li>\n<li>\u63d0\u5347\u51fd\u6570\u6267\u884c\u6548\u7387\u3002<\/li>\n<\/ul>\n<p><strong>\u7f3a\u70b9<\/strong><\/p>\n<ul>\n<li>\u5982\u679c\u51fd\u6570\u610f\u5916\u4fee\u6539\u4e86\u539f\u59cb\u53d8\u91cf\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4e0d\u53ef\u9884\u6599\u7684\u526f\u4f5c\u7528\u3002<\/li>\n<li>\u5f15\u7528\u7684\u4f7f\u7528\u53ef\u80fd\u4f1a\u4f7f\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u964d\u4f4e\u3002<\/li>\n<\/ul>\n<p><strong>\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n<ul>\n<li>\u8c28\u614e\u4f7f\u7528\u5f15\u7528\u53c2\u6570\uff0c\u4ec5\u5728\u9700\u8981\u65f6\u4f7f\u7528\u3002<\/li>\n<li>\u660e\u786e\u6587\u6863\u5316\u5f15\u7528\u53c2\u6570\u7684\u884c\u4e3a\u3002<\/li>\n<li>\u5c3d\u91cf\u5c06\u5f15\u7528\u53c2\u6570\u4f5c\u4e3a\u51fd\u6570\u7684\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u3002<\/li>\n<li>\u4f7f\u7528 PHP 7+ \u4e2d\u7684\u53ea\u8bfb\u5f15\u7528\uff08<code>readonly<\/code>\uff09\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u4fee\u6539\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p><strong>\u793a\u4f8b 1\uff1a\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u4f18\u5316\u5b57\u7b26\u4e32\u53cd\u8f6c<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u7684\u53cd\u8f6c\u5b57\u7b26\u4e32\u51fd\u6570\uff1a<\/p>\n<pre>function reverseStringByReference(&amp; $string) { \n  $length = strlen($string); \n  for ($i = 0; $i &lt; $length \/ 2; ++$i) \n  { \n    $temp = $string[$i]; \n    $string[$i] = $string[$length - $i - 1]; \n    $string[$length - $i - 1] = $temp;\n  } \n} <\/pre>\n<p><strong>\u793a\u4f8b 2\uff1a\u4f7f\u7528\u53ea\u8bfb\u5f15\u7528\u907f\u514d\u610f\u5916\u4fee\u6539<\/strong><\/p>\n<p>PHP 7+ \u5f15\u5165\u4e86\u53ea\u8bfb\u5f15\u7528\uff0c\u4ee5\u9632\u6b62\u5728\u51fd\u6570\u4e2d\u610f\u5916\u4fee\u6539\u5f15\u7528\u53d8\u91cf\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u53ea\u8bfb\u5f15\u7528\u8ba1\u7b97\u6570\u7ec4\u5143\u7d20\u603b\u548c\u7684\u51fd\u6570\uff1a<\/p>\n<pre>function sumArrayElementsReadOnly(array $numbers) { \n  $sum = 0; \n  foreach ($numbers as $number) \n  { \n    $sum += $number; \n  } \n  return $sum; \n} <\/pre>\n<p>\u901a\u8fc7\u9075\u5faa\u8fd9\u4e9b\u6700\u4f73\u5b9e\u8df5\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u4f7f\u7528 PHP \u51fd\u6570\u5f15\u7528\u53c2\u6570\u6765\u63d0\u5347\u6027\u80fd\uff0c\u540c\u65f6\u907f\u514d\u5e38\u89c1\u7684\u9677\u9631\u3002<\/p>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6587\u7ae0\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u51fd\u6570\u5f15\u7528\u53c2\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7 \u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aPHP \u51fd\u6570\u5f15\u7528\u53c2\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7\u300b\uff0c\u8986\u76d6\u4e86\u6587\u7ae0\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002 PHP \u51fd\u6570\u5f15\u7528\u53c2\u6570\u4f18\u5316\u6280\u5de7\uff1a\u4f7f\u7528\u5f15\u7528\u53c2\u6570\uff08&amp;\uff09\u4f20\u9012\u5927\u6570\u636e\u5bf9\u8c61\u6216\u6570\u7ec4\uff0c\u907f\u514d\u6602\u8d35\u7684\u62f7\u8d1d\u64cd\u4f5c\u3002\u660e\u786e\u6587\u6863\u5316\u5f15\u7528\u53c2\u6570\u7684\u884c\u4e3a\uff0c\u8c28\u614e\u4f7f\u7528\uff0c\u4ec5\u5728\u5fc5\u8981\u65f6\u4f7f\u7528\u3002\u4f18\u5148\u5c06\u5f15\u7528\u53c2\u6570\u4f5c\u4e3a\u51fd\u6570\u7684\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u3002\u4f7f\u7528 PHP 7+ \u7684\u53ea\u8bfb\u5f15\u7528\uff08readonly\uff09\uff0c\u9632\u6b62\u51fd\u6570\u610f\u5916\u4fee\u6539\u539f\u59cb\u53d8\u91cf\u3002 PHP \u51fd\u6570\u5f15\u7528\u53c2\u6570\u7684\u6027\u80fd\u4f18\u5316\u6280\u5de7 \u7b80\u4ecb \u5728 PHP \u4e2d\uff0c\u51fd\u6570\u53c2\u6570\u901a\u5e38\u4f1a\u4ee5\u503c\u4f20\u9012\u7684\u65b9\u5f0f\u8fdb\u884c\u4f20\u9012\u3002\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5bf9\u5927\u6570\u636e\u91cf\u5bf9\u8c61\u6216\u6570\u7ec4\u8fdb\u884c\u503c\u4f20\u9012\uff0c\u4f1a\u9020\u6210\u6027\u80fd\u95ee\u9898\u3002\u5f15\u7528\u53c2\u6570\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u4f46\u5fc5\u987b\u5c0f\u5fc3\u4f7f\u7528\uff0c\u5426\u5219\u4f1a\u5bfc\u81f4\u610f\u5916\u7684\u526f\u4f5c\u7528\u3002 \u5f15\u7528\u53c2\u6570\u7684\u539f\u7406 \u5f15\u7528\u53c2\u6570\u901a\u8fc7 &amp; \u7b26\u53f7\u4f20\u9012\uff0c\u5b9e\u9645\u4e0a\u662f\u5c06\u539f\u59cb\u53d8\u91cf\u7684\u5730\u5740\u4f20\u9012\u7ed9\u51fd\u6570\u3002\u8fd9\u610f\u5473\u7740\u51fd\u6570\u5bf9\u53c2\u6570\u7684\u4efb\u4f55\u4fee\u6539\u90fd\u4f1a\u53cd\u6620\u5728\u539f\u59cb\u53d8\u91cf\u4e0a\u3002 \u4f18\u70b9 \u907f\u514d\u5bf9\u5927\u578b\u6570\u636e\u7ed3\u6784\u8fdb\u884c\u6602\u8d35\u7684\u62f7\u8d1d\u64cd\u4f5c\u3002 \u63d0\u5347\u51fd\u6570\u6267\u884c\u6548\u7387\u3002 \u7f3a\u70b9 \u5982\u679c\u51fd\u6570\u610f\u5916\u4fee\u6539\u4e86\u539f\u59cb\u53d8\u91cf\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4e0d\u53ef\u9884\u6599\u7684\u526f\u4f5c\u7528\u3002 \u5f15\u7528\u7684\u4f7f\u7528\u53ef\u80fd\u4f1a\u4f7f\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u964d\u4f4e\u3002 \u6700\u4f73\u5b9e\u8df5 \u8c28\u614e\u4f7f\u7528\u5f15\u7528\u53c2\u6570\uff0c\u4ec5\u5728\u9700\u8981\u65f6\u4f7f\u7528\u3002 \u660e\u786e\u6587\u6863\u5316\u5f15\u7528\u53c2\u6570\u7684\u884c\u4e3a\u3002 \u5c3d\u91cf\u5c06\u5f15\u7528\u53c2\u6570\u4f5c\u4e3a\u51fd\u6570\u7684\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u3002 \u4f7f\u7528 PHP 7+ \u4e2d\u7684\u53ea\u8bfb\u5f15\u7528\uff08readonly\uff09\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u4fee\u6539\u3002 \u5b9e\u6218\u6848\u4f8b \u793a\u4f8b 1\uff1a\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u4f18\u5316\u5b57\u7b26\u4e32\u53cd\u8f6c \u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u5f15\u7528\u53c2\u6570\u7684\u53cd\u8f6c\u5b57\u7b26\u4e32\u51fd\u6570\uff1a function reverseStringByReference(&amp; $string) { $length = strlen($string); for ($i = 0; $i &lt; $length \/ 2; ++$i) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-47718","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47718","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=47718"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47718\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}