{"id":47361,"date":"2024-12-02T17:48:28","date_gmt":"2024-12-02T09:48:28","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47361\/"},"modified":"2024-12-02T17:48:28","modified_gmt":"2024-12-02T09:48:28","slug":"php%e5%87%bd%e6%95%b0%e8%b0%83%e8%af%95%e6%8a%80%e5%b7%a7%e5%85%a8%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47361\/","title":{"rendered":"PHP\u51fd\u6570\u8c03\u8bd5\u6280\u5de7\u5168\u89e3\u6790"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP\u51fd\u6570\u8c03\u8bd5\u6280\u5de7\u5168\u89e3\u6790<\/h1>\n<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP\u51fd\u6570\u8c03\u8bd5\u6280\u5de7\u5168\u89e3\u6790\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01<\/p>\n<p>PHP \u8c03\u8bd5\u51fd\u6570\u53ef\u4ee5\u5feb\u901f\u5b9a\u4f4d\u4ee3\u7801\u95ee\u9898\uff0c\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u30021. var_dump() \u8f93\u51fa\u53d8\u91cf\u503c\uff1b2. print_r() \u63d0\u4f9b\u8be6\u7ec6\u8f93\u51fa\uff0c\u5305\u62ec\u7c7b\u578b\u548c\u503c\uff1b3. error_log() \u5199\u5165\u9519\u8bef\u6d88\u606f\u5230\u9519\u8bef\u65e5\u5fd7\uff1b4. trigger_error() \u89e6\u53d1\u81ea\u5b9a\u4e49\u9519\u8bef\u6d88\u606f\uff1b5. debug_backtrace() \u8f93\u51fa\u8c03\u7528\u5806\u6808\u4fe1\u606f\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 var_dump() \u8c03\u8bd5\u4e00\u4e2a\u8fd4\u56de\u6570\u7ec4\u7684\u51fd\u6570\uff0c\u5982\u679c\u8fd4\u56de\u7a7a\u6570\u7ec4\uff0cerror_log() \u53ef\u8bb0\u5f55\u9519\u8bef\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729912853671c6015b37d7.jpg\" class=\"aligncenter\" title=\"PHP\u51fd\u6570\u8c03\u8bd5\u6280\u5de7\u5168\u89e3\u6790\u63d2\u56fe\" alt=\"PHP\u51fd\u6570\u8c03\u8bd5\u6280\u5de7\u5168\u89e3\u6790\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u8c03\u8bd5\u6280\u5de7\u5168\u89e3\u6790<\/strong><\/p>\n<p>PHP \u8c03\u8bd5\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u60a8\u5feb\u901f\u5b9a\u4f4d\u4ee3\u7801\u4e2d\u7684\u9519\u8bef\u548c\u95ee\u9898\u3002\u638c\u63e1\u8fd9\u4e9b\u6280\u5de7\u53ef\u4ee5\u6781\u5927\u5730\u63d0\u9ad8\u60a8\u7684\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<p><strong>\u4f7f\u7528 <code>var_dump()<\/code><\/strong><\/p>\n<p><code>var_dump()<\/code> \u662f\u6700\u5e38\u7528\u7684\u8c03\u8bd5\u51fd\u6570\u4e4b\u4e00\u3002\u5b83\u5c06\u53d8\u91cf\u7684\u503c\u4ee5\u4eba\u7c7b\u53ef\u8bfb\u7684\u683c\u5f0f\u8f93\u51fa\u5230\u5c4f\u5e55\u4e0a\u3002<\/p>\n<pre>var_dump($variable); \/\/ \u8f93\u51fa\u53d8\u91cf\u7684\u503c<\/pre>\n<p><strong>\u4f7f\u7528 <code>print_r()<\/code><\/strong><\/p>\n<p><code>print_r()<\/code> \u4e0e <code>var_dump()<\/code> \u7c7b\u4f3c\uff0c\u4f46\u5b83\u63d0\u4f9b\u66f4\u8be6\u7ec6\u7684\u8f93\u51fa\uff0c\u5305\u62ec\u53d8\u91cf\u7684\u7c7b\u578b\u548c\u503c\u3002<\/p>\n<pre>print_r($variable); \/\/ \u8f93\u51fa\u53d8\u91cf\u7684\u7c7b\u578b\u548c\u503c<\/pre>\n<p><strong>\u4f7f\u7528 <code>error_log()<\/code><\/strong><\/p>\n<p><code>error_log()<\/code> \u5c06\u9519\u8bef\u6d88\u606f\u5199\u5165\u9519\u8bef\u65e5\u5fd7\u6587\u4ef6\u3002\u8fd9\u5bf9\u4e8e\u8bb0\u5f55\u96be\u4ee5\u5728\u63a7\u5236\u53f0\u4e2d\u770b\u5230\u6216\u5b9a\u4f4d\u7684\u9519\u8bef\u975e\u5e38\u6709\u7528\u3002<\/p>\n<pre>error_log(\"Error occurred: \" . $errorMessage); \/\/ \u8bb0\u5f55\u9519\u8bef\u6d88\u606f<\/pre>\n<p><strong>\u4f7f\u7528 <code>trigger_error()<\/code><\/strong><\/p>\n<p><code>trigger_error()<\/code> \u7528\u4e8e\u89e6\u53d1\u81ea\u5b9a\u4e49\u9519\u8bef\u6d88\u606f\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u60a8\u5728\u7279\u5b9a\u6761\u4ef6\u4e0b\u505c\u6b62\u811a\u672c\u6267\u884c\u3002<\/p>\n<pre>trigger_error(\"Custom error message\", E_USER_ERROR); \/\/ \u89e6\u53d1\u81ea\u5b9a\u4e49\u9519\u8bef\u6d88\u606f<\/pre>\n<p><strong>\u4f7f\u7528 <code>debug_backtrace()<\/code><\/strong><\/p>\n<p><code>debug_backtrace()<\/code> \u8fd4\u56de\u8c03\u7528\u5806\u6808\u7684\u4fe1\u606f\u3002\u8fd9\u6709\u52a9\u4e8e\u60a8\u4e86\u89e3\u51fd\u6570\u662f\u5982\u4f55\u88ab\u8c03\u7528\u7684\uff0c\u4ee5\u53ca\u5728\u4ee3\u7801\u4e2d\u53d1\u751f\u9519\u8bef\u7684\u4f4d\u7f6e\u3002<\/p>\n<pre>var_dump(debug_backtrace()); \/\/ \u8f93\u51fa\u8c03\u7528\u5806\u6808<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p><strong>\u8c03\u8bd5\u4e00\u4e2a\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4<\/strong><\/p>\n<pre>function get_data() {\n    $data = [];\n\n    \/\/ \u4e00\u4e9b\u4ee3\u7801\n\n    return $data;\n}<\/pre>\n<p>\u8981\u8c03\u8bd5\u6b64\u51fd\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 <code>var_dump()<\/code> \u6765\u67e5\u770b <code>$data<\/code> \u7684\u503c\uff1a<\/p>\n<pre>var_dump(get_data());<\/pre>\n<p>\u5982\u679c <code>$data<\/code> \u4e3a\u7a7a\uff0c\u5219\u8868\u660e\u51fd\u6570\u53ef\u80fd\u672a\u6b63\u786e\u8bbe\u7f6e\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 <code>error_log()<\/code> \u6765\u8bb0\u5f55\u8be5\u9519\u8bef\uff1a<\/p>\n<pre>if (empty(get_data())) {\n    error_log(\"get_data() returned an empty array\");\n}<\/pre>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\u7c73\u4e91\uff01\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP\u51fd\u6570\u8c03\u8bd5\u6280\u5de7\u5168\u89e3\u6790 \u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\u300aPHP\u51fd\u6570\u8c03\u8bd5\u6280\u5de7\u5168\u89e3\u6790\u300b\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01 PHP \u8c03\u8bd5\u51fd\u6570\u53ef\u4ee5\u5feb\u901f\u5b9a\u4f4d\u4ee3\u7801\u95ee\u9898\uff0c\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u30021. var_dump() \u8f93\u51fa\u53d8\u91cf\u503c\uff1b2. print_r() \u63d0\u4f9b\u8be6\u7ec6\u8f93\u51fa\uff0c\u5305\u62ec\u7c7b\u578b\u548c\u503c\uff1b3. error_log() \u5199\u5165\u9519\u8bef\u6d88\u606f\u5230\u9519\u8bef\u65e5\u5fd7\uff1b4. trigger_error() \u89e6\u53d1\u81ea\u5b9a\u4e49\u9519\u8bef\u6d88\u606f\uff1b5. debug_backtrace() \u8f93\u51fa\u8c03\u7528\u5806\u6808\u4fe1\u606f\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 var_dump() \u8c03\u8bd5\u4e00\u4e2a\u8fd4\u56de\u6570\u7ec4\u7684\u51fd\u6570\uff0c\u5982\u679c\u8fd4\u56de\u7a7a\u6570\u7ec4\uff0cerror_log() \u53ef\u8bb0\u5f55\u9519\u8bef\u3002 PHP \u51fd\u6570\u8c03\u8bd5\u6280\u5de7\u5168\u89e3\u6790 PHP \u8c03\u8bd5\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u60a8\u5feb\u901f\u5b9a\u4f4d\u4ee3\u7801\u4e2d\u7684\u9519\u8bef\u548c\u95ee\u9898\u3002\u638c\u63e1\u8fd9\u4e9b\u6280\u5de7\u53ef\u4ee5\u6781\u5927\u5730\u63d0\u9ad8\u60a8\u7684\u5f00\u53d1\u6548\u7387\u3002 \u4f7f\u7528 var_dump() var_dump() \u662f\u6700\u5e38\u7528\u7684\u8c03\u8bd5\u51fd\u6570\u4e4b\u4e00\u3002\u5b83\u5c06\u53d8\u91cf\u7684\u503c\u4ee5\u4eba\u7c7b\u53ef\u8bfb\u7684\u683c\u5f0f\u8f93\u51fa\u5230\u5c4f\u5e55\u4e0a\u3002 var_dump($variable); \/\/ \u8f93\u51fa\u53d8\u91cf\u7684\u503c \u4f7f\u7528 print_r() print_r() \u4e0e var_dump() \u7c7b\u4f3c\uff0c\u4f46\u5b83\u63d0\u4f9b\u66f4\u8be6\u7ec6\u7684\u8f93\u51fa\uff0c\u5305\u62ec\u53d8\u91cf\u7684\u7c7b\u578b\u548c\u503c\u3002 print_r($variable); \/\/ \u8f93\u51fa\u53d8\u91cf\u7684\u7c7b\u578b\u548c\u503c \u4f7f\u7528 error_log() error_log() \u5c06\u9519\u8bef\u6d88\u606f\u5199\u5165\u9519\u8bef\u65e5\u5fd7\u6587\u4ef6\u3002\u8fd9\u5bf9\u4e8e\u8bb0\u5f55\u96be\u4ee5\u5728\u63a7\u5236\u53f0\u4e2d\u770b\u5230\u6216\u5b9a\u4f4d\u7684\u9519\u8bef\u975e\u5e38\u6709\u7528\u3002 error_log(&#8220;Error occurred: &#8221; . $errorMessage); \/\/ \u8bb0\u5f55\u9519\u8bef\u6d88\u606f \u4f7f\u7528 trigger_error() trigger_error() \u7528\u4e8e\u89e6\u53d1\u81ea\u5b9a\u4e49\u9519\u8bef\u6d88\u606f\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u60a8\u5728\u7279\u5b9a\u6761\u4ef6\u4e0b\u505c\u6b62\u811a\u672c\u6267\u884c\u3002 trigger_error(&#8220;Custom error message&#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-47361","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47361","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=47361"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47361\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47361"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}