{"id":48378,"date":"2024-12-02T15:50:50","date_gmt":"2024-12-02T07:50:50","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48378\/"},"modified":"2024-12-02T15:50:50","modified_gmt":"2024-12-02T07:50:50","slug":"php%e5%87%bd%e6%95%b0%e5%a6%82%e4%bd%95%e8%8e%b7%e5%8f%96%e5%8f%82%e6%95%b0%e7%9a%84%e6%95%b0%e9%87%8f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48378\/","title":{"rendered":"PHP\u51fd\u6570\u5982\u4f55\u83b7\u53d6\u53c2\u6570\u7684\u6570\u91cf"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP\u51fd\u6570\u5982\u4f55\u83b7\u53d6\u53c2\u6570\u7684\u6570\u91cf<\/h1>\n<p>IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929\u7c73\u4e91\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300aPHP\u51fd\u6570\u5982\u4f55\u83b7\u53d6\u53c2\u6570\u7684\u6570\u91cf\u300b\uff0c\u804a\u804a\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<p>\u8981\u83b7\u53d6 PHP \u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528 func_num_args() \u51fd\u6570\uff0c\u5b83\u8fd4\u56de\u5f53\u524d\u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf\u4f5c\u4e3a\u4e00\u4e2a\u6574\u6570\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730019760671e01b08c494.jpg\" class=\"aligncenter\" title=\"PHP\u51fd\u6570\u5982\u4f55\u83b7\u53d6\u53c2\u6570\u7684\u6570\u91cf\u63d2\u56fe\" alt=\"PHP\u51fd\u6570\u5982\u4f55\u83b7\u53d6\u53c2\u6570\u7684\u6570\u91cf\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u83b7\u53d6 PHP \u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf<\/strong><\/p>\n<p>\u5728 PHP \u4e2d\uff0c\u51fd\u6570\u53ef\u4ee5\u83b7\u53d6\u6570\u91cf\u53ef\u53d8\u7684\u53c2\u6570\u3002\u8981\u83b7\u53d6\u4f20\u9012\u7ed9\u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>func_num_args()<\/code> \u51fd\u6570\u3002<\/p>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>int func_num_args()<\/pre>\n<p>\u6b64\u51fd\u6570\u4f1a\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\uff0c\u8868\u793a\u4f20\u9012\u7ed9\u5f53\u524d\u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf\u3002<\/p>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528 <code>func_num_args()<\/code> \u51fd\u6570\u83b7\u53d6\u4f20\u9012\u7ed9\u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf\uff1a<\/p>\n<pre>&lt;?php\nfunction sum() {\n    \/\/ \u83b7\u53d6\u53c2\u6570\u6570\u91cf\n    $num_args = func_num_args();\n\n    $sum = 0;\n    \/\/ \u904d\u5386\u6bcf\u4e2a\u53c2\u6570\u5e76\u7d2f\u52a0\n    for ($i = 0; $i &lt; $num_args; $i++) {\n        $sum += func_get_arg($i);\n    }\n\n    return $sum;\n}\n\n\/\/ \u8c03\u7528\u51fd\u6570\n$result = sum(1, 2, 3, 4, 5);\n\necho \"\u4f20\u9012\u7ed9 sum() \u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf\uff1a\" . $num_args . \"\\n\";\necho \"\u51fd\u6570\u6c42\u548c\u7ed3\u679c\uff1a\" . $result . \"\\n\";\n?&gt;<\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>\u4f20\u9012\u7ed9 sum() \u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf\uff1a5\n\u51fd\u6570\u6c42\u548c\u7ed3\u679c\uff1a15<\/pre>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aPHP\u51fd\u6570\u5982\u4f55\u83b7\u53d6\u53c2\u6570\u7684\u6570\u91cf\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6587\u7ae0\u77e5\u8bc6\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP\u51fd\u6570\u5982\u4f55\u83b7\u53d6\u53c2\u6570\u7684\u6570\u91cf IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929\u7c73\u4e91\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300aPHP\u51fd\u6570\u5982\u4f55\u83b7\u53d6\u53c2\u6570\u7684\u6570\u91cf\u300b\uff0c\u804a\u804a\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01 \u8981\u83b7\u53d6 PHP \u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528 func_num_args() \u51fd\u6570\uff0c\u5b83\u8fd4\u56de\u5f53\u524d\u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf\u4f5c\u4e3a\u4e00\u4e2a\u6574\u6570\u3002 \u5982\u4f55\u83b7\u53d6 PHP \u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf \u5728 PHP \u4e2d\uff0c\u51fd\u6570\u53ef\u4ee5\u83b7\u53d6\u6570\u91cf\u53ef\u53d8\u7684\u53c2\u6570\u3002\u8981\u83b7\u53d6\u4f20\u9012\u7ed9\u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528 func_num_args() \u51fd\u6570\u3002 \u8bed\u6cd5\uff1a int func_num_args() \u6b64\u51fd\u6570\u4f1a\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\uff0c\u8868\u793a\u4f20\u9012\u7ed9\u5f53\u524d\u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf\u3002 \u5b9e\u6218\u6848\u4f8b\uff1a \u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528 func_num_args() \u51fd\u6570\u83b7\u53d6\u4f20\u9012\u7ed9\u51fd\u6570\u7684\u53c2\u6570\u6570\u91cf\uff1a &lt;?php function sum() { \/\/ \u83b7\u53d6\u53c2\u6570\u6570\u91cf $num_args = func_num_args(); $sum = 0; \/\/ \u904d\u5386\u6bcf\u4e2a\u53c2\u6570\u5e76\u7d2f\u52a0 for ($i = 0; $i &lt; $num_args; $i++) { $sum += func_get_arg($i); } return $sum; } \/\/ \u8c03\u7528\u51fd\u6570 [&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-48378","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48378","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=48378"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48378\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=48378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=48378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=48378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}