{"id":48163,"date":"2024-12-02T12:50:01","date_gmt":"2024-12-02T04:50:01","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48163\/"},"modified":"2024-12-02T12:50:01","modified_gmt":"2024-12-02T04:50:01","slug":"php%e4%b8%ad%e5%a6%82%e4%bd%95%e6%8d%95%e8%8e%b7%e5%92%8c%e5%a4%84%e7%90%86%e5%bc%82%e5%b8%b8%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48163\/","title":{"rendered":"PHP\u4e2d\u5982\u4f55\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP\u4e2d\u5982\u4f55\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\uff1f<\/h1>\n<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP\u4e2d\u5982\u4f55\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\uff1f\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p>PHP\u4e2d\u5f02\u5e38\u5904\u7406\u673a\u5236\u5141\u8bb8\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4ee5\u9884\u671f\u65b9\u5f0f\u5904\u7406\u9519\u8bef\u548c\u5f02\u5e38\uff0c\u786e\u4fdd\u5176\u7a33\u5b9a\u6027\u3002\u901a\u8fc7try-catch\u8bed\u53e5\uff0c\u7528\u6237\u53ef\u4ee5\u6355\u83b7\u5f02\u5e38\uff08\u4f8b\u5982\u901a\u8fc7get_class\u83b7\u53d6\u7c7b\u578b\u3001\u901a\u8fc7getMessage\u83b7\u53d6\u9519\u8bef\u6d88\u606f\uff09\u5e76\u8fdb\u884c\u5904\u7406\uff08\u5982\u629b\u51fa\u65b0\u5f02\u5e38\u3001\u91cd\u65b0\u629b\u51fa\u5f02\u5e38\uff09\u3002\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\u4f7f\u7528\u7279\u5b9a\u5f02\u5e38\u7c7b\u578b\u8868\u793a\u4e0d\u540c\u9519\u8bef\u3001\u5728try\u5757\u4e2d\u653e\u7f6e\u53ef\u80fd\u629b\u51fa\u5f02\u5e38\u7684\u4ee3\u7801\u3001\u5728catch\u5757\u4e2d\u5177\u4f53\u5904\u7406\u5f02\u5e38\u7c7b\u578b\uff0c\u4ee5\u53ca\u5bf9\u672a\u5904\u7406\u5f02\u5e38\u8fdb\u884c\u62a5\u544a\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1729993852671d9c7c06bec.jpg\" class=\"aligncenter\" title=\"PHP\u4e2d\u5982\u4f55\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\uff1f\u63d2\u56fe\" alt=\"PHP\u4e2d\u5982\u4f55\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u4e2d\u5982\u4f55\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38<\/strong><\/p>\n<p>\u5f02\u5e38\u5904\u7406\u662f PHP \u4e2d\u5904\u7406\u9519\u8bef\u548c\u5f02\u5e38\u60c5\u51b5\u7684\u673a\u5236\u3002\u5b83\u5141\u8bb8\u60a8\u4ee5\u9884\u671f\u7684\u65b9\u5f0f\u5904\u7406\u9519\u8bef\u548c\u5f02\u5e38\uff0c\u786e\u4fdd\u5e94\u7528\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\u548c\u7528\u6237\u53cb\u597d\u6027\u3002<\/p>\n<p><strong>\u6355\u83b7\u5f02\u5e38<\/strong><\/p>\n<p>\u8981\u6355\u83b7\u5f02\u5e38\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>try-catch<\/code> \u8bed\u53e5\u3002<code>try<\/code> \u5757\u5305\u542b\u53ef\u80fd\u629b\u51fa\u5f02\u5e38\u7684\u4ee3\u7801\uff0c\u800c <code>catch<\/code> \u5757\u5219\u6355\u83b7\u629b\u51fa\u7684\u5f02\u5e38\u5e76\u5bf9\u5176\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<pre>try {\n    \/\/ \u53ef\u80fd\u4f1a\u5f15\u53d1\u5f02\u5e38\u7684\u4ee3\u7801\n} catch (Exception $e) {\n    \/\/ \u6355\u83b7\u5f02\u5e38\u5e76\u5904\u7406\n}<\/pre>\n<p><strong>\u5b9e\u6218\u793a\u4f8b\uff1a\u6587\u4ef6\u8bfb\u53d6<\/strong><\/p>\n<p>\u8003\u8651\u4ee5\u4e0b\u793a\u4f8b\uff0c\u8be5\u793a\u4f8b\u8bd5\u56fe\u8bfb\u53d6\u4e00\u4e2a\u4e0d\u5b58\u5728\u7684\u6587\u4ef6\uff1a<\/p>\n<pre>$filename = 'non-existent-file.txt';\n$file = fopen($filename, 'r'); \/\/ \u53ef\u80fd\u4f1a\u5f15\u53d1 FileNotFoundException\n\nif ($file) {\n    \/\/ \u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u5185\u5bb9\n}<\/pre>\n<p>\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5219 <code>fopen()<\/code> \u51fd\u6570\u5c06\u629b\u51fa <code>FileNotFoundException<\/code> \u5f02\u5e38\u3002\u8981\u6355\u83b7\u548c\u5904\u7406\u6b64\u5f02\u5e38\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 <code>try-catch<\/code> \u8bed\u53e5\uff1a<\/p>\n<pre>try {\n    $filename = 'non-existent-file.txt';\n    $file = fopen($filename, 'r');\n\n    if ($file) {\n        \/\/ \u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u5185\u5bb9\n    }\n} catch (FileNotFoundException $e) {\n    \/\/ \u5904\u7406FileNotFoundException\u5f02\u5e38\n    \/\/ \u4f8b\u5982\uff0c\u5411\u7528\u6237\u663e\u793a\u9519\u8bef\u6d88\u606f\n}<\/pre>\n<p><strong>\u5904\u7406\u5f02\u5e38<\/strong><\/p>\n<p>\u5728 <code>catch<\/code> \u5757\u4e2d\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5904\u7406\u5f02\u5e38\uff1a<\/p>\n<ul>\n<li><strong>\u83b7\u53d6\u9519\u8bef\u6d88\u606f\uff1a<\/strong>\u4f7f\u7528 <code>$e-&gt;getMessage()<\/code> \u68c0\u7d22\u9519\u8bef\u6d88\u606f\u3002<\/li>\n<li><strong>\u83b7\u53d6\u5f02\u5e38\u7c7b\u578b\uff1a<\/strong>\u4f7f\u7528 <code>get_class($e)<\/code> \u68c0\u7d22\u5f02\u5e38\u7684\u7c7b\u578b\u3002<\/li>\n<li><strong>\u629b\u51fa\u65b0\u5f02\u5e38\uff1a<\/strong>\u4f7f\u7528 <code>throw<\/code> \u5173\u952e\u5b57\u629b\u51fa\u65b0\u5f02\u5e38\u3002<\/li>\n<li><strong>\u91cd\u65b0\u629b\u51fa\u5f02\u5e38\uff1a<\/strong>\u4f7f\u7528 <code>throw $e;<\/code> \u91cd\u65b0\u629b\u51fa\u6355\u83b7\u7684\u5f02\u5e38\u3002<\/li>\n<\/ul>\n<p><strong>\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528\u7279\u5b9a\u5f02\u5e38\u7c7b\u578b\u6765\u8868\u793a\u4e0d\u540c\u7684\u9519\u8bef\u60c5\u51b5\u3002<\/li>\n<li>\u5728 <code>try<\/code> \u5757\u4e2d\u653e\u7f6e\u53ef\u80fd\u629b\u51fa\u5f02\u5e38\u7684\u4ee3\u7801\u3002<\/li>\n<li>\u5728 <code>catch<\/code> \u5757\u4e2d\u5177\u4f53\u5904\u7406\u6bcf\u4e2a\u5f02\u5e38\u7c7b\u578b\u3002<\/li>\n<li>\u4f7f\u7528\u65e5\u5fd7\u8bb0\u5f55\u6216\u5176\u4ed6\u673a\u5236\u5bf9\u672a\u5904\u7406\u7684\u5f02\u5e38\u8fdb\u884c\u62a5\u544a\u3002<\/li>\n<\/ul>\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\u4e2d\u5982\u4f55\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\uff1f \u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7\u300aPHP\u4e2d\u5982\u4f55\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\uff1f\u300b\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0\u6587\u7ae0\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01 PHP\u4e2d\u5f02\u5e38\u5904\u7406\u673a\u5236\u5141\u8bb8\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4ee5\u9884\u671f\u65b9\u5f0f\u5904\u7406\u9519\u8bef\u548c\u5f02\u5e38\uff0c\u786e\u4fdd\u5176\u7a33\u5b9a\u6027\u3002\u901a\u8fc7try-catch\u8bed\u53e5\uff0c\u7528\u6237\u53ef\u4ee5\u6355\u83b7\u5f02\u5e38\uff08\u4f8b\u5982\u901a\u8fc7get_class\u83b7\u53d6\u7c7b\u578b\u3001\u901a\u8fc7getMessage\u83b7\u53d6\u9519\u8bef\u6d88\u606f\uff09\u5e76\u8fdb\u884c\u5904\u7406\uff08\u5982\u629b\u51fa\u65b0\u5f02\u5e38\u3001\u91cd\u65b0\u629b\u51fa\u5f02\u5e38\uff09\u3002\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\u4f7f\u7528\u7279\u5b9a\u5f02\u5e38\u7c7b\u578b\u8868\u793a\u4e0d\u540c\u9519\u8bef\u3001\u5728try\u5757\u4e2d\u653e\u7f6e\u53ef\u80fd\u629b\u51fa\u5f02\u5e38\u7684\u4ee3\u7801\u3001\u5728catch\u5757\u4e2d\u5177\u4f53\u5904\u7406\u5f02\u5e38\u7c7b\u578b\uff0c\u4ee5\u53ca\u5bf9\u672a\u5904\u7406\u5f02\u5e38\u8fdb\u884c\u62a5\u544a\u3002 PHP \u4e2d\u5982\u4f55\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38 \u5f02\u5e38\u5904\u7406\u662f PHP \u4e2d\u5904\u7406\u9519\u8bef\u548c\u5f02\u5e38\u60c5\u51b5\u7684\u673a\u5236\u3002\u5b83\u5141\u8bb8\u60a8\u4ee5\u9884\u671f\u7684\u65b9\u5f0f\u5904\u7406\u9519\u8bef\u548c\u5f02\u5e38\uff0c\u786e\u4fdd\u5e94\u7528\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\u548c\u7528\u6237\u53cb\u597d\u6027\u3002 \u6355\u83b7\u5f02\u5e38 \u8981\u6355\u83b7\u5f02\u5e38\uff0c\u53ef\u4ee5\u4f7f\u7528 try-catch \u8bed\u53e5\u3002try \u5757\u5305\u542b\u53ef\u80fd\u629b\u51fa\u5f02\u5e38\u7684\u4ee3\u7801\uff0c\u800c catch \u5757\u5219\u6355\u83b7\u629b\u51fa\u7684\u5f02\u5e38\u5e76\u5bf9\u5176\u8fdb\u884c\u5904\u7406\u3002 try { \/\/ \u53ef\u80fd\u4f1a\u5f15\u53d1\u5f02\u5e38\u7684\u4ee3\u7801 } catch (Exception $e) { \/\/ \u6355\u83b7\u5f02\u5e38\u5e76\u5904\u7406 } \u5b9e\u6218\u793a\u4f8b\uff1a\u6587\u4ef6\u8bfb\u53d6 \u8003\u8651\u4ee5\u4e0b\u793a\u4f8b\uff0c\u8be5\u793a\u4f8b\u8bd5\u56fe\u8bfb\u53d6\u4e00\u4e2a\u4e0d\u5b58\u5728\u7684\u6587\u4ef6\uff1a $filename = &#8216;non-existent-file.txt&#8217;; $file = fopen($filename, &#8216;r&#8217;); \/\/ \u53ef\u80fd\u4f1a\u5f15\u53d1 FileNotFoundException if ($file) { \/\/ \u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u5185\u5bb9 } \u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5219 fopen() \u51fd\u6570\u5c06\u629b\u51fa FileNotFoundException \u5f02\u5e38\u3002\u8981\u6355\u83b7\u548c\u5904\u7406\u6b64\u5f02\u5e38\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 try-catch \u8bed\u53e5\uff1a try { $filename [&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-48163","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48163","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=48163"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48163\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=48163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=48163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=48163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}