{"id":48047,"date":"2024-12-02T11:11:18","date_gmt":"2024-12-02T03:11:18","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48047\/"},"modified":"2024-12-02T11:11:18","modified_gmt":"2024-12-02T03:11:18","slug":"php-%e5%87%bd%e6%95%b0%e5%a6%82%e4%bd%95%e8%b0%83%e7%94%a8%e5%a4%96%e9%83%a8%e5%87%bd%e6%95%b0%e5%b9%b6%e5%af%b9%e5%85%b6%e8%bf%94%e5%9b%9e%e5%80%bc%e8%bf%9b%e8%a1%8c%e7%b1%bb%e5%9e%8b%e6%a3%80","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48047\/","title":{"rendered":"PHP \u51fd\u6570\u5982\u4f55\u8c03\u7528\u5916\u90e8\u51fd\u6570\u5e76\u5bf9\u5176\u8fd4\u56de\u503c\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u51fd\u6570\u5982\u4f55\u8c03\u7528\u5916\u90e8\u51fd\u6570\u5e76\u5bf9\u5176\u8fd4\u56de\u503c\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5<\/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\u8c03\u7528\u5916\u90e8\u51fd\u6570\u5e76\u5bf9\u5176\u8fd4\u56de\u503c\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\u300b\uff0c\u804a\u804a\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<p>PHP \u53ef\u901a\u8fc7 call_user_func_array() \u51fd\u6570\u8c03\u7528\u5916\u90e8\u51fd\u6570\uff0c\u5e76\u4f7f\u7528 is_*() \u51fd\u6570\u5bb6\u65cf\u8fdb\u884c\u8fd4\u56de\u7c7b\u578b\u68c0\u67e5\uff0c\u5305\u62ec\uff1ais_int(): \u68c0\u67e5\u662f\u5426\u4e3a\u6574\u578bis_float(): \u68c0\u67e5\u662f\u5426\u4e3a\u6d6e\u70b9\u578bis_string(): \u68c0\u67e5\u662f\u5426\u4e3a\u5b57\u7b26\u4e32is_array(): \u68c0\u67e5\u662f\u5426\u4e3a\u6570\u7ec4<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729951537671cf731db2ea.jpg\" class=\"aligncenter\" title=\"PHP \u51fd\u6570\u5982\u4f55\u8c03\u7528\u5916\u90e8\u51fd\u6570\u5e76\u5bf9\u5176\u8fd4\u56de\u503c\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\u63d2\u56fe\" alt=\"PHP \u51fd\u6570\u5982\u4f55\u8c03\u7528\u5916\u90e8\u51fd\u6570\u5e76\u5bf9\u5176\u8fd4\u56de\u503c\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\uff1a\u8c03\u7528\u5916\u90e8\u51fd\u6570\u5e76\u8fdb\u884c\u8fd4\u56de\u503c\u7c7b\u578b\u68c0\u67e5<\/strong><\/p>\n<p><strong>\u7b80\u4ecb<\/strong><\/p>\n<p>\u6709\u65f6\u5019\uff0c\u6211\u4eec\u9700\u8981\u8c03\u7528 PHP \u4e4b\u5916\u7684\u5916\u90e8\u51fd\u6570\u5e93\u6216\u6269\u5c55\uff0c\u5e76\u5e0c\u671b\u5bf9\u8fd4\u56de\u7ed3\u679c\u7684\u7c7b\u578b\u8fdb\u884c\u68c0\u67e5\u4ee5\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u3002PHP \u4e3a\u6b64\u63d0\u4f9b\u4e86\u7c7b\u578b\u68c0\u67e5\u529f\u80fd\u3002<\/p>\n<p><strong>\u8bed\u6cd5<\/strong><\/p>\n<p><code>call_user_func_array(callable $callback, array $parameters): mixed<\/code><\/p>\n<ul>\n<li><strong>$callback<\/strong>\uff1a\u8981\u8c03\u7528\u7684\u5916\u90e8\u51fd\u6570\u6216\u7c7b\u7684\u9759\u6001\u65b9\u6cd5<\/li>\n<li><strong>$parameters<\/strong>\uff1a\u4f20\u9012\u7ed9\u5916\u90e8\u51fd\u6570\u7684\u53c2\u6570\u6570\u7ec4<\/li>\n<\/ul>\n<p><strong>\u7c7b\u578b\u68c0\u67e5<\/strong><\/p>\n<p>\u4e3a\u4e86\u68c0\u67e5\u8fd4\u56de\u7c7b\u578b\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 <code>is_*()<\/code> \u51fd\u6570\u5bb6\u65cf\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u7c7b\u578b\u68c0\u67e5\u51fd\u6570\uff1a<\/p>\n<ul>\n<li><code>is_int()<\/code>: \u68c0\u67e5\u662f\u5426\u4e3a\u6574\u578b<\/li>\n<li><code>is_float()<\/code>: \u68c0\u67e5\u662f\u5426\u4e3a\u6d6e\u70b9\u578b<\/li>\n<li><code>is_string()<\/code>: \u68c0\u67e5\u662f\u5426\u4e3a\u5b57\u7b26\u4e32<\/li>\n<li><code>is_array()<\/code>: \u68c0\u67e5\u662f\u5426\u4e3a\u6570\u7ec4<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a <code>my_external_function()<\/code> \u7684\u5916\u90e8\u51fd\u6570\uff0c\u5b83\u63a5\u53d7\u4e00\u4e2a\u5b57\u7b26\u4e32\u53c2\u6570\u5e76\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\u3002\u6211\u4eec\u53ef\u4ee5\u6309\u5982\u4e0b\u65b9\u5f0f\u8c03\u7528\u5b83\u5e76\u68c0\u67e5\u8fd4\u56de\u7c7b\u578b\uff1a<\/p>\n<pre>&lt;?php\n\nfunction my_callback($string)\n{\n    return my_external_function($string);\n}\n\n$result = call_user_func_array(\"my_callback\", [\"Hello, world!\"]);\n\nif (is_int($result)) {\n    echo \"\u8fd4\u56de\u503c\u662f\u6574\u6570\";\n} else {\n    echo \"\u8fd4\u56de\u503c\u7c7b\u578b\u4e0d\u6b63\u786e\";\n}<\/pre>\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u5982\u679c <code>my_external_function()<\/code> \u8fd4\u56de\u4e00\u4e2a\u6574\u6570\uff0c\u5b83\u4f1a\u6253\u5370&#8221;\u8fd4\u56de\u503c\u662f\u6574\u6570&#8221;\uff1b\u5426\u5219\uff0c\u5b83\u4f1a\u6253\u5370&#8221;\u8fd4\u56de\u503c\u7c7b\u578b\u4e0d\u6b63\u786e&#8221;\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aPHP \u51fd\u6570\u5982\u4f55\u8c03\u7528\u5916\u90e8\u51fd\u6570\u5e76\u5bf9\u5176\u8fd4\u56de\u503c\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u7c73\u4e91\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u51fd\u6570\u5982\u4f55\u8c03\u7528\u5916\u90e8\u51fd\u6570\u5e76\u5bf9\u5176\u8fd4\u56de\u503c\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5 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\u8c03\u7528\u5916\u90e8\u51fd\u6570\u5e76\u5bf9\u5176\u8fd4\u56de\u503c\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\u300b\uff0c\u804a\u804a\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01 PHP \u53ef\u901a\u8fc7 call_user_func_array() \u51fd\u6570\u8c03\u7528\u5916\u90e8\u51fd\u6570\uff0c\u5e76\u4f7f\u7528 is_*() \u51fd\u6570\u5bb6\u65cf\u8fdb\u884c\u8fd4\u56de\u7c7b\u578b\u68c0\u67e5\uff0c\u5305\u62ec\uff1ais_int(): \u68c0\u67e5\u662f\u5426\u4e3a\u6574\u578bis_float(): \u68c0\u67e5\u662f\u5426\u4e3a\u6d6e\u70b9\u578bis_string(): \u68c0\u67e5\u662f\u5426\u4e3a\u5b57\u7b26\u4e32is_array(): \u68c0\u67e5\u662f\u5426\u4e3a\u6570\u7ec4 PHP \u51fd\u6570\uff1a\u8c03\u7528\u5916\u90e8\u51fd\u6570\u5e76\u8fdb\u884c\u8fd4\u56de\u503c\u7c7b\u578b\u68c0\u67e5 \u7b80\u4ecb \u6709\u65f6\u5019\uff0c\u6211\u4eec\u9700\u8981\u8c03\u7528 PHP \u4e4b\u5916\u7684\u5916\u90e8\u51fd\u6570\u5e93\u6216\u6269\u5c55\uff0c\u5e76\u5e0c\u671b\u5bf9\u8fd4\u56de\u7ed3\u679c\u7684\u7c7b\u578b\u8fdb\u884c\u68c0\u67e5\u4ee5\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u3002PHP \u4e3a\u6b64\u63d0\u4f9b\u4e86\u7c7b\u578b\u68c0\u67e5\u529f\u80fd\u3002 \u8bed\u6cd5 call_user_func_array(callable $callback, array $parameters): mixed $callback\uff1a\u8981\u8c03\u7528\u7684\u5916\u90e8\u51fd\u6570\u6216\u7c7b\u7684\u9759\u6001\u65b9\u6cd5 $parameters\uff1a\u4f20\u9012\u7ed9\u5916\u90e8\u51fd\u6570\u7684\u53c2\u6570\u6570\u7ec4 \u7c7b\u578b\u68c0\u67e5 \u4e3a\u4e86\u68c0\u67e5\u8fd4\u56de\u7c7b\u578b\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 is_*() \u51fd\u6570\u5bb6\u65cf\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u7c7b\u578b\u68c0\u67e5\u51fd\u6570\uff1a is_int(): \u68c0\u67e5\u662f\u5426\u4e3a\u6574\u578b is_float(): \u68c0\u67e5\u662f\u5426\u4e3a\u6d6e\u70b9\u578b is_string(): \u68c0\u67e5\u662f\u5426\u4e3a\u5b57\u7b26\u4e32 is_array(): \u68c0\u67e5\u662f\u5426\u4e3a\u6570\u7ec4 \u5b9e\u6218\u6848\u4f8b \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a my_external_function() \u7684\u5916\u90e8\u51fd\u6570\uff0c\u5b83\u63a5\u53d7\u4e00\u4e2a\u5b57\u7b26\u4e32\u53c2\u6570\u5e76\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\u3002\u6211\u4eec\u53ef\u4ee5\u6309\u5982\u4e0b\u65b9\u5f0f\u8c03\u7528\u5b83\u5e76\u68c0\u67e5\u8fd4\u56de\u7c7b\u578b\uff1a &lt;?php function my_callback($string) { return my_external_function($string); } $result = call_user_func_array(&#8220;my_callback&#8221;, [&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-48047","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48047","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=48047"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48047\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=48047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=48047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=48047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}