{"id":47038,"date":"2024-12-02T16:30:21","date_gmt":"2024-12-02T08:30:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47038\/"},"modified":"2024-12-02T16:30:21","modified_gmt":"2024-12-02T08:30:21","slug":"php-%e9%80%92%e5%bd%92%e5%87%bd%e6%95%b0%e5%a0%86%e6%a0%88%e6%ba%a2%e5%87%ba%e9%97%ae%e9%a2%98%e7%9a%84%e6%b7%b1%e5%85%a5%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47038\/","title":{"rendered":"PHP \u9012\u5f52\u51fd\u6570\u5806\u6808\u6ea2\u51fa\u95ee\u9898\u7684\u6df1\u5165\u89e3\u6790"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u9012\u5f52\u51fd\u6570\u5806\u6808\u6ea2\u51fa\u95ee\u9898\u7684\u6df1\u5165\u89e3\u6790<\/h1>\n<p>\u77e5\u8bc6\u70b9\u638c\u63e1\u4e86\uff0c\u8fd8\u9700\u8981\u4e0d\u65ad\u7ec3\u4e60\u624d\u80fd\u719f\u7ec3\u8fd0\u7528\u3002\u4e0b\u9762\u7c73\u4e91\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u4e2a\u6587\u7ae0\u5f00\u53d1\u5b9e\u6218\uff0c\u624b\u628a\u624b\u6559\u5927\u5bb6\u5b66\u4e60\u300aPHP 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PHP.ini \u6587\u4ef6\u4e2d\u8bbe\u7f6e\u540d\u4e3a <code>recursion_limit<\/code> \u7684\u914d\u7f6e\u6307\u4ee4\uff0c\u4ee5\u9650\u5236\u9012\u5f52\u8c03\u7528\u7684\u6700\u5927\u6df1\u5ea6\u3002<\/li>\n<li><strong>\u4f7f\u7528\u5c3e\u9012\u5f52\uff1a<\/strong>\u5982\u679c\u53ef\u80fd\uff0c\u8bf7\u5c06\u9012\u5f52\u8c03\u7528\u653e\u5728\u51fd\u6570\u7684\u672b\u5c3e\u3002\u8fd9\u5c06\u786e\u4fdd\u4e0d\u4f1a\u521b\u5efa\u65b0\u7684\u5806\u6808\u5e27\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n<p>\u8003\u8651\u4ee5\u4e0b\u793a\u4f8b\u51fd\u6570\uff0c\u5b83\u9012\u5f52\u5730\u8ba1\u7b97\u9636\u4e58\uff1a<\/p>\n<pre>function factorial($n) {\n  if ($n == 0) {\n    return 1;\n  } else {\n    return $n * factorial($n - 1);\n  }\n}<\/pre>\n<p>\u5982\u679c\u6211\u4eec\u5c1d\u8bd5\u8ba1\u7b97\u5f88\u5927\u7684\u9636\u4e58\uff0c\u4f8b\u5982 10000\uff0c\u8fd9\u4e2a\u51fd\u6570\u5c31\u4f1a\u5bfc\u81f4\u5806\u6808\u6ea2\u51fa\u3002\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528\u8fed\u4ee3\uff1a<\/p>\n<pre>function factorial_iterative($n) {\n  $result = 1;\n  for ($i = 1; $i &lt;= $n; $i++) {\n    $result *= $i;\n  }\n  return $result;\n}<\/pre>\n<p><strong>\u7ed3\u8bba\uff1a<\/strong><\/p>\n<p>\u9012\u5f52\u51fd\u6570\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u4f46\u5982\u679c\u4f7f\u7528\u4e0d\u5f53\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5806\u6808\u6ea2\u51fa\u7684\u95ee\u9898\u3002\u901a\u8fc7\u7406\u89e3\u5806\u6808\u6ea2\u51fa\u7684\u539f\u56e0\u5e76\u9075\u5faa\u907f\u514d\u8fc7\u5ea6\u6216\u65e0\u9650\u9012\u5f52\u7684\u6700\u4f73\u5b9e\u8df5\uff0c\u6211\u4eec\u53ef\u4ee5\u9632\u6b62\u8fd9\u4e9b\u95ee\u9898\u5e76\u7f16\u5199\u51fa\u9ad8\u6548\u3001\u7a33\u5b9a\u7684 PHP 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\u6587\u4ef6\u4e2d\u8bbe\u7f6e\u540d\u4e3a recursion_limit \u7684\u914d\u7f6e\u6307\u4ee4\uff0c\u4ee5\u9650\u5236\u9012\u5f52\u8c03\u7528\u7684\u6700\u5927\u6df1\u5ea6\u3002 \u4f7f\u7528\u5c3e\u9012\u5f52\uff1a\u5982\u679c\u53ef\u80fd\uff0c\u8bf7\u5c06\u9012\u5f52\u8c03\u7528\u653e\u5728\u51fd\u6570\u7684\u672b\u5c3e\u3002\u8fd9\u5c06\u786e\u4fdd\u4e0d\u4f1a\u521b\u5efa\u65b0\u7684\u5806\u6808\u5e27\u3002 \u5b9e\u6218\u6848\u4f8b\uff1a \u8003\u8651\u4ee5\u4e0b\u793a\u4f8b\u51fd\u6570\uff0c\u5b83\u9012\u5f52\u5730\u8ba1\u7b97\u9636\u4e58\uff1a function factorial($n) { if ($n == 0) { return 1; } else { return $n * factorial($n &#8211; 1); } } \u5982\u679c\u6211\u4eec\u5c1d\u8bd5\u8ba1\u7b97\u5f88\u5927\u7684\u9636\u4e58\uff0c\u4f8b\u5982 10000\uff0c\u8fd9\u4e2a\u51fd\u6570\u5c31\u4f1a\u5bfc\u81f4\u5806\u6808\u6ea2\u51fa\u3002\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528\u8fed\u4ee3\uff1a function factorial_iterative($n) { $result = 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