{"id":48137,"date":"2024-12-02T17:10:32","date_gmt":"2024-12-02T09:10:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48137\/"},"modified":"2024-12-02T17:10:32","modified_gmt":"2024-12-02T09:10:32","slug":"php-%e5%87%bd%e6%95%b0%e7%9a%84%e4%bd%bf%e7%94%a8%e8%bf%87%e7%a8%8b%e4%b8%ad%e7%9a%84%e8%b0%83%e8%af%95%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48137\/","title":{"rendered":"PHP \u51fd\u6570\u7684\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u7684\u8c03\u8bd5\u6280\u5de7"},"content":{"rendered":"

<\/b> <\/p>\n

PHP \u51fd\u6570\u7684\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u7684\u8c03\u8bd5\u6280\u5de7<\/h1>\n

\u5b66\u4e60\u77e5\u8bc6\u8981\u5584\u4e8e\u601d\u8003\uff0c\u601d\u8003\uff0c\u518d\u601d\u8003\uff01\u4eca\u5929\u7c73\u4e91\u5c0f\u7f16\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300aPHP \u51fd\u6570\u7684\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u7684\u8c03\u8bd5\u6280\u5de7\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u5305\u542b<\/span>\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u6216\u51c6\u5907\u5b66\u4e60\u6587\u7ae0<\/span>\uff0c\u5c31\u90fd\u4e0d\u8981\u9519\u8fc7\u672c\u6587\u5566~\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff0c\u80fd\u5e2e\u52a9\u5230\u4f60\u5c31\u66f4\u597d\u4e86\uff01<\/span><\/p>\n

\"PHP<\/p>\n

PHP \u51fd\u6570\u8c03\u8bd5\u6280\u5de7<\/strong><\/p>\n

\u5728\u5f00\u53d1 PHP \u7a0b\u5e8f\u65f6\uff0c\u5bf9\u51fd\u6570\u8fdb\u884c\u8c03\u8bd5\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5feb\u901f\u5b9a\u4f4d\u5e76\u89e3\u51b3\u95ee\u9898\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5b9e\u7528\u7684\u8c03\u8bd5\u6280\u5de7\u3002<\/p>\n

1. \u4f7f\u7528 var_dump()<\/code><\/strong><\/p>\n

var_dump()<\/code> \u51fd\u6570\u53ef\u4ee5\u5c06\u53d8\u91cf\u7684\u8be6\u7ec6\u4fe1\u606f\u8f93\u51fa\u5230\u5c4f\u5e55\u4e0a\uff0c\u5305\u62ec\u53d8\u91cf\u7c7b\u578b\u3001\u503c\u548c\u7ed3\u6784\u3002\u8fd9\u5bf9\u4e8e\u8c03\u8bd5\u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u975e\u5e38\u6709\u7528\u3002<\/p>\n

function sum($a, $b) {\n    return $a + $b;\n}\n\n$sum = sum(1, 2);\nvar_dump($sum); \/\/ \u8f93\u51fa\uff1aint(3)<\/pre>\n
2. \u4f7f\u7528 print_r()<\/code><\/strong><\/p>\n
print_r()<\/code> \u51fd\u6570\u7c7b\u4f3c\u4e8e var_dump()<\/code>\uff0c\u4f46\u53ef\u4ee5\u4ee5\u66f4\u7f8e\u89c2\u7684\u683c\u5f0f\u8f93\u51fa\u53d8\u91cf\u3002\u5b83\u9002\u7528\u4e8e\u8c03\u8bd5\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5982\u6570\u7ec4\u548c\u5bf9\u8c61\u3002<\/p>\n
function getArray() {\n    return [1, 2, 3];\n}\n\n$array = getArray();\nprint_r($array); \/\/ \u8f93\u51fa\uff1aArray ( [0] => 1 [1] => 2 [2] => 3 )<\/pre>\n
3. \u4f7f\u7528 error_log()<\/code><\/strong><\/p>\n
error_log()<\/code> \u51fd\u6570\u53ef\u4ee5\u5c06\u6d88\u606f\u5199\u5165\u9519\u8bef\u65e5\u5fd7\u6587\u4ef6\u4e2d\u3002\u8fd9\u5bf9\u4e8e\u8bb0\u5f55\u51fd\u6570\u8c03\u7528\u7684\u8be6\u7ec6\u4fe1\u606f\u975e\u5e38\u6709\u7528\uff0c\u7279\u522b\u662f\u5f53\u65e0\u6cd5\u4f7f\u7528 var_dump()<\/code> \u6216 print_r()<\/code> \u65f6\u3002<\/p>\n
function logError($message) {\n    error_log($message, 3, '\/tmp\/error.log');\n}\n\nlogError('Error message'); \/\/ \u5199\u5165\u65e5\u5fd7\u6587\u4ef6 \/tmp\/error.log<\/pre>\n
\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u51fd\u6570 calculateDiscount()<\/code>\uff0c\u7528\u4e8e\u8ba1\u7b97\u8d2d\u7269\u8f66\u7684\u603b\u6298\u6263\u3002\u5982\u679c\u51fd\u6570\u6ca1\u6709\u6309\u7167\u9884\u671f\u5de5\u4f5c\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8c03\u8bd5\u6b65\u9aa4\uff1a<\/p>\n
    \n
  1. \u4f7f\u7528 var_dump()<\/code> \u68c0\u67e5\u51fd\u6570\u53c2\u6570\u662f\u5426\u6b63\u786e\u3002<\/li>\n
  2. \u4f7f\u7528 print_r()<\/code> \u6253\u5370\u51fd\u6570\u8fd4\u56de\u503c\u4ee5\u4e86\u89e3\u5176\u5185\u5bb9\u3002<\/li>\n
  3. \u4f7f\u7528 error_log()<\/code> \u8bb0\u5f55\u51fd\u6570\u8c03\u7528\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5305\u62ec\u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u3002<\/li>\n<\/ol>\n
    \u901a\u8fc7\u4ed4\u7ec6\u5ba1\u67e5\u8f93\u51fa\u7ed3\u679c\uff0c\u6211\u4eec\u53ef\u4ee5\u5feb\u901f\u8bc6\u522b\u51fa\u95ee\u9898\u7684\u6839\u6e90\u5e76\u91c7\u53d6\u9002\u5f53\u7684\u63aa\u65bd\u3002<\/p>\n
    \u4eca\u5929\u5173\u4e8e\u300aPHP \u51fd\u6570\u7684\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u7684\u8c03\u8bd5\u6280\u5de7\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8ephp,\u8c03\u8bd5\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    PHP \u51fd\u6570\u7684\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u7684\u8c03\u8bd5\u6280\u5de7 \u5b66\u4e60\u77e5\u8bc6\u8981\u5584\u4e8e\u601d\u8003\uff0c\u601d\u8003\uff0c\u518d\u601d\u8003\uff01\u4eca\u5929\u7c73\u4e91\u5c0f\u7f16\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300aPHP \u51fd\u6570\u7684\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u7684\u8c03\u8bd5\u6280\u5de7\u300b\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u5305\u542b\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u6216\u51c6\u5907\u5b66\u4e60\u6587\u7ae0\uff0c\u5c31\u90fd\u4e0d\u8981\u9519\u8fc7\u672c\u6587\u5566~\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff0c\u80fd\u5e2e\u52a9\u5230\u4f60\u5c31\u66f4\u597d\u4e86\uff01 PHP \u51fd\u6570\u8c03\u8bd5\u6280\u5de7 \u5728\u5f00\u53d1 PHP \u7a0b\u5e8f\u65f6\uff0c\u5bf9\u51fd\u6570\u8fdb\u884c\u8c03\u8bd5\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5feb\u901f\u5b9a\u4f4d\u5e76\u89e3\u51b3\u95ee\u9898\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5b9e\u7528\u7684\u8c03\u8bd5\u6280\u5de7\u3002 1. \u4f7f\u7528 var_dump() var_dump() \u51fd\u6570\u53ef\u4ee5\u5c06\u53d8\u91cf\u7684\u8be6\u7ec6\u4fe1\u606f\u8f93\u51fa\u5230\u5c4f\u5e55\u4e0a\uff0c\u5305\u62ec\u53d8\u91cf\u7c7b\u578b\u3001\u503c\u548c\u7ed3\u6784\u3002\u8fd9\u5bf9\u4e8e\u8c03\u8bd5\u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u975e\u5e38\u6709\u7528\u3002 function sum($a, $b) { return $a + $b; } $sum = sum(1, 2); var_dump($sum); \/\/ \u8f93\u51fa\uff1aint(3) 2. \u4f7f\u7528 print_r() print_r() \u51fd\u6570\u7c7b\u4f3c\u4e8e var_dump()\uff0c\u4f46\u53ef\u4ee5\u4ee5\u66f4\u7f8e\u89c2\u7684\u683c\u5f0f\u8f93\u51fa\u53d8\u91cf\u3002\u5b83\u9002\u7528\u4e8e\u8c03\u8bd5\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5982\u6570\u7ec4\u548c\u5bf9\u8c61\u3002 function getArray() { return [1, 2, 3]; } $array = getArray(); print_r($array); \/\/ \u8f93\u51fa\uff1aArray ( [0] => 1 [1] […]<\/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-48137","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48137","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=48137"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48137\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=48137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=48137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=48137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}