{"id":47379,"date":"2024-12-02T10:26:18","date_gmt":"2024-12-02T02:26:18","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47379\/"},"modified":"2024-12-02T10:26:18","modified_gmt":"2024-12-02T02:26:18","slug":"php%e5%87%bd%e6%95%b0%e9%94%99%e8%af%af%e7%9a%84%e5%bf%ab%e9%80%9f%e5%ae%9a%e4%bd%8d%e4%b8%8e%e5%a4%84%e7%90%86%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47379\/","title":{"rendered":"php\u51fd\u6570\u9519\u8bef\u7684\u5feb\u901f\u5b9a\u4f4d\u4e0e\u5904\u7406\u6307\u5357"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>php\u51fd\u6570\u9519\u8bef\u7684\u5feb\u901f\u5b9a\u4f4d\u4e0e\u5904\u7406\u6307\u5357<\/h1>\n<p>\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aphp\u51fd\u6570\u9519\u8bef\u7684\u5feb\u901f\u5b9a\u4f4d\u4e0e\u5904\u7406\u6307\u5357\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729914872671c67f877d85.jpg\" class=\"aligncenter\" title=\"php\u51fd\u6570\u9519\u8bef\u7684\u5feb\u901f\u5b9a\u4f4d\u4e0e\u5904\u7406\u6307\u5357\u63d2\u56fe\" alt=\"php\u51fd\u6570\u9519\u8bef\u7684\u5feb\u901f\u5b9a\u4f4d\u4e0e\u5904\u7406\u6307\u5357\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u9519\u8bef\u7684\u5feb\u901f\u5b9a\u4f4d\u4e0e\u5904\u7406\u6307\u5357<\/strong><\/p>\n<p>PHP \u51fd\u6570\u9519\u8bef\u662f\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u5e38\u89c1\u7684\u75db\u70b9\u3002\u6709\u6548\u5b9a\u4f4d\u548c\u5904\u7406\u8fd9\u4e9b\u9519\u8bef\u5bf9\u4e8e\u4fdd\u6301\u4ee3\u7801\u7a33\u5b9a\u6027\u548c\u8ddf\u8e2a\u95ee\u9898\u81f3\u5173\u91cd\u8981\u3002\u672c\u6307\u5357\u5c06\u4ecb\u7ecd\u5feb\u901f\u5b9a\u4f4d\u548c\u5904\u7406 PHP \u51fd\u6570\u9519\u8bef\u7684\u6709\u6548\u65b9\u6cd5\u3002<\/p>\n<p><strong>\u8c03\u8bd5\u5de5\u5177\uff1a<\/strong><\/p>\n<ul>\n<li><strong>var_dump() \u548c print_r()\uff1a<\/strong> \u7528\u4e8e\u8f93\u51fa\u53d8\u91cf\u503c\uff0c\u53ef\u5e2e\u52a9\u8bc6\u522b\u53c2\u6570\u95ee\u9898\u3002<\/li>\n<li><strong>error_log()\uff1a<\/strong> \u53d1\u9001\u9519\u8bef\u6d88\u606f\u5230\u65e5\u5fd7\u6587\u4ef6\u6216 syslog\u3002<\/li>\n<li><strong>debug_backtrace()\uff1a<\/strong> \u663e\u793a\u8c03\u7528\u6808\uff0c\u6709\u52a9\u4e8e\u5b9a\u4f4d\u9519\u8bef\u53d1\u751f\u7684\u4f4d\u7f6e\u3002<\/li>\n<\/ul>\n<p><strong>\u9a8c\u8bc1\u8f93\u5165\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u7c7b\u578b\u8f6c\u6362\uff1a<\/strong> \u4f7f\u7528 <code>settype()<\/code> \u6216 <code>intval()<\/code> \u51fd\u6570\u6765\u786e\u4fdd\u51fd\u6570\u63a5\u6536\u6b63\u786e\u7684\u6570\u636e\u7c7b\u578b\u3002<\/li>\n<li><strong>\u8303\u56f4\u68c0\u67e5\uff1a<\/strong> \u786e\u4fdd\u53c2\u6570\u503c\u5728\u9884\u671f\u8303\u56f4\u5185\uff0c\u4ee5\u907f\u514d\u8d85\u51fa\u8303\u56f4\u9519\u8bef\u3002<\/li>\n<li><strong>\u53d8\u91cf\u68c0\u67e5\uff1a<\/strong> \u68c0\u67e5\u53d8\u91cf\u662f\u5426\u5df2\u521d\u59cb\u5316\u5e76\u5305\u542b\u6709\u6548\u503c\u3002<\/li>\n<\/ul>\n<p><strong>\u5f02\u5e38\u5904\u7406\uff1a<\/strong><\/p>\n<ul>\n<li><strong>try&#8230;catch \u5757\uff1a<\/strong> \u5305\u56f4\u53ef\u80fd\u5f15\u53d1\u5f02\u5e38\u7684\u4ee3\u7801\uff0c\u4ee5\u4f18\u96c5\u5730\u5904\u7406\u9519\u8bef\u5e76\u63d0\u4f9b\u6709\u7528\u7684\u6d88\u606f\u3002<\/li>\n<li><strong>\u81ea\u5b9a\u4e49\u5f02\u5e38\uff1a<\/strong> \u521b\u5efa\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\uff0c\u63d0\u4f9b\u7279\u5b9a\u4e8e\u5e94\u7528\u7a0b\u5e8f\u7684\u9519\u8bef\u4fe1\u606f\u3002<\/li>\n<li><strong>\u9519\u8bef\u7801\uff1a<\/strong> \u5b9a\u4e49\u9519\u8bef\u7801\u4ee5\u6807\u8bc6\u4e0d\u540c\u7c7b\u578b\u7684\u9519\u8bef\uff0c\u4ee5\u4fbf\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u505a\u51fa\u9002\u5f53\u54cd\u5e94\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u51fd\u6570 <code>calculate_area(length, width)<\/code>\uff0c\u5b83\u8ba1\u7b97\u77e9\u5f62\u9762\u79ef\u3002\u9519\u8bef\u53ef\u80fd\u53d1\u751f\u5728\u63d0\u4f9b\u65e0\u6548\u53c2\u6570\u3001\u957f\u5ea6\u6216\u5bbd\u5ea6\u4e3a\u8d1f\u6570\u6216\u8d85\u51fa\u8303\u56f4\u65f6\u3002<\/p>\n<p><strong>\u9519\u8bef\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>function calculate_area($length, $width) {\n    if ($length &lt; 0 || $width &lt; 0) {\n        throw new InvalidArgumentException(\"Length and width must be non-negative.\");\n    }\n    return $length * $width;\n}\n\ntry {\n    $area = calculate_area(5, -2);\n} catch (InvalidArgumentException $e) {\n    echo \"\u9519\u8bef\uff1a \" . $e-&gt;getMessage();\n}<\/pre>\n<p><strong>\u8f93\u51fa\uff1a<\/strong><\/p>\n<pre>\u9519\u8bef\uff1a \u53c2\u6570\u5fc5\u987b\u662f\u975e\u8d1f\u7684\u3002<\/pre>\n<p><strong>\u5176\u4ed6\u63d0\u793a\uff1a<\/strong><\/p>\n<ul>\n<li>\u542f\u7528\u663e\u793a\u9519\u8bef\uff0c\u901a\u8fc7 <code>ini_set('display_errors', 1);<\/code>\u3002<\/li>\n<li>\u8bb0\u5f55\u9519\u8bef\u4fe1\u606f\u4ee5\u8fdb\u884c\u5206\u6790\u548c\u8ddf\u8e2a\u3002<\/li>\n<li>\u4f7f\u7528\u7b2c\u4e09\u65b9\u8c03\u8bd5\u5de5\u5177\uff08\u4f8b\u5982 Xdebug\uff09\u6765\u83b7\u5f97\u66f4\u8be6\u7ec6\u7684\u9519\u8bef\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aphp\u51fd\u6570\u9519\u8bef\u7684\u5feb\u901f\u5b9a\u4f4d\u4e0e\u5904\u7406\u6307\u5357\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>php\u51fd\u6570\u9519\u8bef\u7684\u5feb\u901f\u5b9a\u4f4d\u4e0e\u5904\u7406\u6307\u5357 \u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aphp\u51fd\u6570\u9519\u8bef\u7684\u5feb\u901f\u5b9a\u4f4d\u4e0e\u5904\u7406\u6307\u5357\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002 PHP \u51fd\u6570\u9519\u8bef\u7684\u5feb\u901f\u5b9a\u4f4d\u4e0e\u5904\u7406\u6307\u5357 PHP \u51fd\u6570\u9519\u8bef\u662f\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u5e38\u89c1\u7684\u75db\u70b9\u3002\u6709\u6548\u5b9a\u4f4d\u548c\u5904\u7406\u8fd9\u4e9b\u9519\u8bef\u5bf9\u4e8e\u4fdd\u6301\u4ee3\u7801\u7a33\u5b9a\u6027\u548c\u8ddf\u8e2a\u95ee\u9898\u81f3\u5173\u91cd\u8981\u3002\u672c\u6307\u5357\u5c06\u4ecb\u7ecd\u5feb\u901f\u5b9a\u4f4d\u548c\u5904\u7406 PHP \u51fd\u6570\u9519\u8bef\u7684\u6709\u6548\u65b9\u6cd5\u3002 \u8c03\u8bd5\u5de5\u5177\uff1a var_dump() \u548c print_r()\uff1a \u7528\u4e8e\u8f93\u51fa\u53d8\u91cf\u503c\uff0c\u53ef\u5e2e\u52a9\u8bc6\u522b\u53c2\u6570\u95ee\u9898\u3002 error_log()\uff1a \u53d1\u9001\u9519\u8bef\u6d88\u606f\u5230\u65e5\u5fd7\u6587\u4ef6\u6216 syslog\u3002 debug_backtrace()\uff1a \u663e\u793a\u8c03\u7528\u6808\uff0c\u6709\u52a9\u4e8e\u5b9a\u4f4d\u9519\u8bef\u53d1\u751f\u7684\u4f4d\u7f6e\u3002 \u9a8c\u8bc1\u8f93\u5165\uff1a \u7c7b\u578b\u8f6c\u6362\uff1a \u4f7f\u7528 settype() \u6216 intval() \u51fd\u6570\u6765\u786e\u4fdd\u51fd\u6570\u63a5\u6536\u6b63\u786e\u7684\u6570\u636e\u7c7b\u578b\u3002 \u8303\u56f4\u68c0\u67e5\uff1a \u786e\u4fdd\u53c2\u6570\u503c\u5728\u9884\u671f\u8303\u56f4\u5185\uff0c\u4ee5\u907f\u514d\u8d85\u51fa\u8303\u56f4\u9519\u8bef\u3002 \u53d8\u91cf\u68c0\u67e5\uff1a \u68c0\u67e5\u53d8\u91cf\u662f\u5426\u5df2\u521d\u59cb\u5316\u5e76\u5305\u542b\u6709\u6548\u503c\u3002 \u5f02\u5e38\u5904\u7406\uff1a try&#8230;catch \u5757\uff1a \u5305\u56f4\u53ef\u80fd\u5f15\u53d1\u5f02\u5e38\u7684\u4ee3\u7801\uff0c\u4ee5\u4f18\u96c5\u5730\u5904\u7406\u9519\u8bef\u5e76\u63d0\u4f9b\u6709\u7528\u7684\u6d88\u606f\u3002 \u81ea\u5b9a\u4e49\u5f02\u5e38\uff1a \u521b\u5efa\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\uff0c\u63d0\u4f9b\u7279\u5b9a\u4e8e\u5e94\u7528\u7a0b\u5e8f\u7684\u9519\u8bef\u4fe1\u606f\u3002 \u9519\u8bef\u7801\uff1a \u5b9a\u4e49\u9519\u8bef\u7801\u4ee5\u6807\u8bc6\u4e0d\u540c\u7c7b\u578b\u7684\u9519\u8bef\uff0c\u4ee5\u4fbf\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u505a\u51fa\u9002\u5f53\u54cd\u5e94\u3002 \u5b9e\u6218\u6848\u4f8b\uff1a \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u51fd\u6570 calculate_area(length, width)\uff0c\u5b83\u8ba1\u7b97\u77e9\u5f62\u9762\u79ef\u3002\u9519\u8bef\u53ef\u80fd\u53d1\u751f\u5728\u63d0\u4f9b\u65e0\u6548\u53c2\u6570\u3001\u957f\u5ea6\u6216\u5bbd\u5ea6\u4e3a\u8d1f\u6570\u6216\u8d85\u51fa\u8303\u56f4\u65f6\u3002 \u9519\u8bef\u793a\u4f8b\uff1a function calculate_area($length, $width) { if ($length &lt; 0 || $width &lt; 0) { [&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-47379","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47379","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=47379"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47379\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47379"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47379"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47379"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}