{"id":47978,"date":"2024-12-02T14:50:05","date_gmt":"2024-12-02T06:50:05","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47978\/"},"modified":"2024-12-02T14:50:05","modified_gmt":"2024-12-02T06:50:05","slug":"php-%e5%87%bd%e6%95%b0%e6%80%8e%e4%b9%88%e4%bc%a0%e9%80%92%e5%8f%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47978\/","title":{"rendered":"PHP \u51fd\u6570\u600e\u4e48\u4f20\u9012\u53c2\u6570"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u51fd\u6570\u600e\u4e48\u4f20\u9012\u53c2\u6570<\/h1>\n<p><span style=\"color: #222222;, sans-serif;background-color: #FFFFFF\">\u5404\u4f4d\u5c0f\u4f19\u4f34\u4eec\uff0c\u5927\u5bb6\u597d\u5440\uff01\u770b\u770b\u4eca\u5929\u6211\u53c8\u7ed9\u5404\u4f4d\u5e26\u6765\u4e86\u4ec0\u4e48\u6587\u7ae0\uff1f\u672c\u6587\u6807\u9898<span style=\"color: #222222;, sans-serif;background-color: #FFFFFF\">\u662f<\/span><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP \u51fd\u6570\u600e\u4e48\u4f20\u9012\u53c2\u6570\u300b<\/span>\uff0c\u5f88\u660e\u663e\u662f\u5173\u4e8e<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u7684\u6587\u7ae0\u54c8\u54c8\u54c8\uff0c\u5176\u4e2d\u5185\u5bb9\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u5982\u679c\u80fd\u5e2e\u5230\u4f60\uff0c\u89c9\u5f97\u5f88\u4e0d\u9519\u7684\u8bdd\uff0c\u6b22\u8fce\u5404\u4f4d\u591a\u591a\u70b9\u8bc4\u548c\u5206\u4eab\uff01<\/span><\/p>\n<p>PHP \u51fd\u6570\u53c2\u6570\u4f20\u9012\u901a\u8fc7\u6309\u503c\u4f20\u9012\uff08\u503c\u526f\u672c\uff09\u548c\u6309\u5f15\u7528\u4f20\u9012\uff08\u503c\u5730\u5740\uff09\u6765\u5b9e\u73b0\uff1a\u6309\u503c\u4f20\u9012\uff1a\u590d\u5236\u53c2\u6570\u503c\u4f20\u9012\u5230\u51fd\u6570\uff0c\u5bf9\u526f\u672c\u7684\u4fee\u6539\u4e0d\u5f71\u54cd\u539f\u59cb\u503c\u3002\u6309\u5f15\u7528\u4f20\u9012\uff1a\u4f20\u9012\u53c2\u6570\u7684\u5b58\u50a8\u5730\u5740\uff0c\u5bf9\u5730\u5740\u6307\u5411\u7684\u503c\u7684\u4fee\u6539\u4f1a\u5f71\u54cd\u539f\u59cb\u53d8\u91cf\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729947210671ce64abd3a1.jpg\" class=\"aligncenter\" title=\"PHP \u51fd\u6570\u600e\u4e48\u4f20\u9012\u53c2\u6570\u63d2\u56fe\" alt=\"PHP \u51fd\u6570\u600e\u4e48\u4f20\u9012\u53c2\u6570\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u4e2d\u53c2\u6570\u4f20\u9012\u6307\u5357<\/strong><\/p>\n<p>\u51fd\u6570\u53c2\u6570\u4f20\u9012\u662f\u5c06\u503c\u4ece\u8c03\u7528\u4ee3\u7801\u4f20\u9012\u5230\u51fd\u6570\u4e2d\u7684\u8fc7\u7a0b\u3002PHP \u51fd\u6570\u901a\u8fc7\u4e24\u79cd\u4e3b\u8981\u65b9\u5f0f\u4f20\u9012\u53c2\u6570\uff1a<\/p>\n<ul>\n<li><strong>\u6309\u503c\u4f20\u9012 (pass-by-value)<\/strong>\uff1a\u4e00\u4efd\u53c2\u6570\u503c\u7684\u526f\u672c\u88ab\u4f20\u9012\u5230\u51fd\u6570\u4e2d\u3002\u5bf9\u526f\u672c\u6240\u505a\u7684\u4efb\u4f55\u4fee\u6539\u90fd\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u503c\u3002<\/li>\n<li><strong>\u6309\u5f15\u7528\u4f20\u9012 (pass-by-reference)<\/strong>\uff1a\u4f20\u9012\u7684\u662f\u53c2\u6570\u5b9e\u9645\u5b58\u50a8\u4f4d\u7f6e\u7684\u5730\u5740\u3002\u5bf9\u5730\u5740\u6240\u6307\u5411\u503c\u7684\u4efb\u4f55\u4fee\u6539\u90fd\u4f1a\u5f71\u54cd\u539f\u59cb\u53d8\u91cf\u3002<\/li>\n<\/ul>\n<p><strong>\u6309\u503c\u4f20\u9012<\/strong><\/p>\n<pre>function addNumbers($a, $b) {\n  $a = $a + $b;\n}\n\n$x = 5;\n$y = 10;\naddNumbers($x, $y);\necho $x; \/\/ \u8f93\u51fa\uff1a5<\/pre>\n<p>\u5728\u6309\u503c\u4f20\u9012\u4e2d\uff0c<code>$a<\/code> \u548c <code>$b<\/code> \u662f\u539f\u59cb\u503c <code>$x<\/code> \u548c <code>$y<\/code> \u7684\u526f\u672c\u3002\u5728\u51fd\u6570\u4e2d\u5bf9\u526f\u672c\u8fdb\u884c\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u53d8\u91cf\u3002<\/p>\n<p><strong>\u6309\u5f15\u7528\u4f20\u9012<\/strong><\/p>\n<pre>function incrementVariable(&amp;$a) {\n  $a++;\n}\n\n$x = 5;\nincrementVariable($x);\necho $x; \/\/ \u8f93\u51fa\uff1a6<\/pre>\n<p>\u5728\u6309\u5f15\u7528\u4f20\u9012\u4e2d\uff0c<code>&amp;$a<\/code> \u662f\u4e00\u4e2a\u5bf9 <code>$x<\/code> \u7684\u5f15\u7528\u3002\u5728\u51fd\u6570\u4e2d\u4fee\u6539\u6b64\u5f15\u7528\u6307\u5411\u7684\u503c\u4f1a\u5f71\u54cd\u539f\u59cb\u53d8\u91cf\u3002<\/p>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p><strong>\u793a\u4f8b 1\uff1a\u9a8c\u8bc1\u7528\u6237\u8f93\u5165<\/strong><\/p>\n<pre>function validateInput($email) {\n  \/\/ \u9a8c\u8bc1\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u683c\u5f0f\n  return filter_var($email, FILTER_VALIDATE_EMAIL);\n}<\/pre>\n<p>\u5728\u6b64\u6848\u4f8b\u4e2d\uff0c<code>$email<\/code> \u53c2\u6570\u6309\u503c\u4f20\u9012\u3002\u8fd9\u610f\u5473\u7740\u9a8c\u8bc1\u51fd\u6570\u5bf9\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u8fdb\u884c\u68c0\u67e5\u540e\uff0c\u539f\u59cb <code>$email<\/code> \u53d8\u91cf\u4e0d\u4f1a\u53d7\u5230\u5f71\u54cd\u3002<\/p>\n<p><strong>\u793a\u4f8b 2\uff1a\u66f4\u65b0\u6570\u636e\u5e93\u4e2d\u7684\u8bb0\u5f55<\/strong><\/p>\n<pre>function updateRecord(&amp;$record) {\n  \/\/ \u4f7f\u7528 SQL \u8bed\u53e5\u66f4\u65b0\u6570\u636e\u5e93\n  \/\/ ...\n}<\/pre>\n<p>\u5728\u6b64\u6848\u4f8b\u4e2d\uff0c<code>&amp;$record<\/code> \u53c2\u6570\u6309\u5f15\u7528\u4f20\u9012\u3002\u8fd9\u786e\u4fdd\u5728\u6570\u636e\u5e93\u4e2d\u66f4\u65b0\u8bb0\u5f55\u540e\uff0c\u539f\u59cb <code>$record<\/code> \u53d8\u91cf\u4e5f\u80fd\u53cd\u6620\u8fd9\u4e9b\u66f4\u6539\u3002<\/p>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aPHP \u51fd\u6570\u600e\u4e48\u4f20\u9012\u53c2\u6570\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u51fd\u6570\u600e\u4e48\u4f20\u9012\u53c2\u6570 \u5404\u4f4d\u5c0f\u4f19\u4f34\u4eec\uff0c\u5927\u5bb6\u597d\u5440\uff01\u770b\u770b\u4eca\u5929\u6211\u53c8\u7ed9\u5404\u4f4d\u5e26\u6765\u4e86\u4ec0\u4e48\u6587\u7ae0\uff1f\u672c\u6587\u6807\u9898\u662f\u300aPHP \u51fd\u6570\u600e\u4e48\u4f20\u9012\u53c2\u6570\u300b\uff0c\u5f88\u660e\u663e\u662f\u5173\u4e8e\u6587\u7ae0\u7684\u6587\u7ae0\u54c8\u54c8\u54c8\uff0c\u5176\u4e2d\u5185\u5bb9\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230\u7b49\u7b49\uff0c\u5982\u679c\u80fd\u5e2e\u5230\u4f60\uff0c\u89c9\u5f97\u5f88\u4e0d\u9519\u7684\u8bdd\uff0c\u6b22\u8fce\u5404\u4f4d\u591a\u591a\u70b9\u8bc4\u548c\u5206\u4eab\uff01 PHP \u51fd\u6570\u53c2\u6570\u4f20\u9012\u901a\u8fc7\u6309\u503c\u4f20\u9012\uff08\u503c\u526f\u672c\uff09\u548c\u6309\u5f15\u7528\u4f20\u9012\uff08\u503c\u5730\u5740\uff09\u6765\u5b9e\u73b0\uff1a\u6309\u503c\u4f20\u9012\uff1a\u590d\u5236\u53c2\u6570\u503c\u4f20\u9012\u5230\u51fd\u6570\uff0c\u5bf9\u526f\u672c\u7684\u4fee\u6539\u4e0d\u5f71\u54cd\u539f\u59cb\u503c\u3002\u6309\u5f15\u7528\u4f20\u9012\uff1a\u4f20\u9012\u53c2\u6570\u7684\u5b58\u50a8\u5730\u5740\uff0c\u5bf9\u5730\u5740\u6307\u5411\u7684\u503c\u7684\u4fee\u6539\u4f1a\u5f71\u54cd\u539f\u59cb\u53d8\u91cf\u3002 PHP \u51fd\u6570\u4e2d\u53c2\u6570\u4f20\u9012\u6307\u5357 \u51fd\u6570\u53c2\u6570\u4f20\u9012\u662f\u5c06\u503c\u4ece\u8c03\u7528\u4ee3\u7801\u4f20\u9012\u5230\u51fd\u6570\u4e2d\u7684\u8fc7\u7a0b\u3002PHP \u51fd\u6570\u901a\u8fc7\u4e24\u79cd\u4e3b\u8981\u65b9\u5f0f\u4f20\u9012\u53c2\u6570\uff1a \u6309\u503c\u4f20\u9012 (pass-by-value)\uff1a\u4e00\u4efd\u53c2\u6570\u503c\u7684\u526f\u672c\u88ab\u4f20\u9012\u5230\u51fd\u6570\u4e2d\u3002\u5bf9\u526f\u672c\u6240\u505a\u7684\u4efb\u4f55\u4fee\u6539\u90fd\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u503c\u3002 \u6309\u5f15\u7528\u4f20\u9012 (pass-by-reference)\uff1a\u4f20\u9012\u7684\u662f\u53c2\u6570\u5b9e\u9645\u5b58\u50a8\u4f4d\u7f6e\u7684\u5730\u5740\u3002\u5bf9\u5730\u5740\u6240\u6307\u5411\u503c\u7684\u4efb\u4f55\u4fee\u6539\u90fd\u4f1a\u5f71\u54cd\u539f\u59cb\u53d8\u91cf\u3002 \u6309\u503c\u4f20\u9012 function addNumbers($a, $b) { $a = $a + $b; } $x = 5; $y = 10; addNumbers($x, $y); echo $x; \/\/ \u8f93\u51fa\uff1a5 \u5728\u6309\u503c\u4f20\u9012\u4e2d\uff0c$a \u548c $b \u662f\u539f\u59cb\u503c $x \u548c $y \u7684\u526f\u672c\u3002\u5728\u51fd\u6570\u4e2d\u5bf9\u526f\u672c\u8fdb\u884c\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u53d8\u91cf\u3002 \u6309\u5f15\u7528\u4f20\u9012 function incrementVariable(&amp;$a) { $a++; } $x = 5; incrementVariable($x); [&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-47978","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47978","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=47978"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47978\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}