{"id":48434,"date":"2024-12-02T17:26:35","date_gmt":"2024-12-02T09:26:35","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48434\/"},"modified":"2024-12-02T17:26:35","modified_gmt":"2024-12-02T09:26:35","slug":"%e6%8e%8c%e6%8f%a1-php-%e5%87%bd%e6%95%b0%e7%9a%84%e5%86%85%e5%ad%98%e7%ae%a1%e7%90%86%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48434\/","title":{"rendered":"\u638c\u63e1 PHP \u51fd\u6570\u7684\u5185\u5b58\u7ba1\u7406\u6280\u5de7"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u638c\u63e1 PHP \u51fd\u6570\u7684\u5185\u5b58\u7ba1\u7406\u6280\u5de7<\/h1>\n<p>\u6b22\u8fce\u5404\u4f4d\u5c0f\u4f19\u4f34\u6765\u5230\u7c73\u4e91\uff0c\u76f8\u805a\u4e8e\u6b64\u90fd\u662f\u7f18\u54c8\u54c8\u54c8\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u638c\u63e1 PHP \u51fd\u6570\u7684\u5185\u5b58\u7ba1\u7406\u6280\u5de7\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\uff0c\u5982\u679c\u4f60\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\u975e\u5e38\u611f\u5174\u8da3\u6216\u8005\u6b63\u5728\u81ea\u5b66\uff0c\u90fd\u53ef\u4ee5\u5173\u6ce8\u6211\uff0c\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\uff01\u5f53\u7136\uff0c\u6709\u4ec0\u4e48\u5efa\u8bae\u4e5f\u6b22\u8fce\u5728\u8bc4\u8bba\u7559\u8a00\u63d0\u51fa\uff01\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730028566671e2416b3d89.jpg\" class=\"aligncenter\" title=\"\u638c\u63e1 PHP \u51fd\u6570\u7684\u5185\u5b58\u7ba1\u7406\u6280\u5de7\u63d2\u56fe\" alt=\"\u638c\u63e1 PHP \u51fd\u6570\u7684\u5185\u5b58\u7ba1\u7406\u6280\u5de7\u63d2\u56fe\" \/><\/p>\n<p><strong>\u638c\u63e1 PHP \u51fd\u6570\u7684\u5185\u5b58\u7ba1\u7406\u6280\u5de7<\/strong><\/p>\n<p><strong>\u5f15\u8a00<\/strong><\/p>\n<p>\u5185\u5b58\u7ba1\u7406\u662f PHP \u4e2d\u81f3\u5173\u91cd\u8981\u7684\u4e00\u4e2a\u90e8\u5206\uff0c\u638c\u63e1\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u63d0\u5347\u5e94\u7528\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u3002\u672c\u6587\u5c06\u63a2\u8ba8 PHP \u4e2d\u5e38\u7528\u7684\u5185\u5b58\u7ba1\u7406\u51fd\u6570\uff0c\u5e76\u901a\u8fc7\u5b9e\u6218\u6848\u4f8b\u5e2e\u52a9\u5927\u5bb6\u7406\u89e3\u5176\u4f7f\u7528\u65b9\u5f0f\u3002<\/p>\n<p><strong>\u5e38\u7528\u7684\u5185\u5b58\u7ba1\u7406\u51fd\u6570<\/strong><\/p>\n<ul>\n<li><strong>memory_get_usage()\uff1a<\/strong>\u83b7\u53d6\u5f53\u524d PHP \u8fdb\u7a0b\u5df2\u5206\u914d\u7684\u5185\u5b58\u91cf\u3002<\/li>\n<li><strong>memory_get_peak_usage()\uff1a<\/strong>\u83b7\u53d6\u5f53\u524d PHP \u8fdb\u7a0b\u5206\u914d\u8fc7\u7684\u6700\u5927\u5185\u5b58\u91cf\u3002<\/li>\n<li><strong>memory_limit()\uff1a<\/strong>\u83b7\u53d6\u6216\u8bbe\u7f6e\u5f53\u524d PHP \u8fdb\u7a0b\u7684\u5185\u5b58\u9650\u5236\u3002<\/li>\n<li><strong>gc_collect_cycles()\uff1a<\/strong>\u5f3a\u5236\u5783\u573e\u56de\u6536\u5668\u8fd0\u884c\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p><strong>1. \u76d1\u63a7\u5185\u5b58\u4f7f\u7528\u60c5\u51b5<\/strong><\/p>\n<pre>$startTime = memory_get_usage();\n\/\/ \u6267\u884c\u4e00\u4e9b\u4ee3\u7801...\n$endTime = memory_get_usage();\n\necho \"\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff1a\", $endTime - $startTime, \"\u5b57\u8282\";<\/pre>\n<p><strong>2. \u8bbe\u7f6e\u5185\u5b58\u9650\u5236<\/strong><\/p>\n<pre>ini_set('memory_limit', '128M'); \/\/ \u8bbe\u7f6e\u5185\u5b58\u9650\u5236\u4e3a 128MB<\/pre>\n<p><strong>3. \u91ca\u653e\u672a\u4f7f\u7528\u7684\u5185\u5b58<\/strong><\/p>\n<pre>unset($large_array); \/\/ \u91ca\u653e\u5927\u578b\u6570\u7ec4\ngc_collect_cycles(); \/\/ \u8fd0\u884c\u5783\u573e\u56de\u6536\u5668<\/pre>\n<p><strong>\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n<ul>\n<li><strong>\u4ec5\u5206\u914d\u5fc5\u8981\u7684\u5185\u5b58\uff1a<\/strong>\u907f\u514d\u5206\u914d\u8fc7\u591a\u7684\u5185\u5b58\uff0c\u4f1a\u5bfc\u81f4\u6d6a\u8d39\u548c\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<li><strong>\u4f7f\u7528\u53d8\u91cf\u53c2\u8003\u800c\u4e0d\u662f\u590d\u5236\uff1a<\/strong>\u4f7f\u7528\u5f15\u7528\u53ef\u4ee5\u907f\u514d\u521b\u5efa\u4e0d\u5fc5\u8981\u7684\u526f\u672c\uff0c\u4ece\u800c\u8282\u7701\u5185\u5b58\u3002<\/li>\n<li><strong>\u4f7f\u7528\u5783\u573e\u56de\u6536\u5668\uff1a<\/strong>PHP \u7684\u5783\u573e\u56de\u6536\u5668\u4f1a\u81ea\u52a8\u91ca\u653e\u672a\u4f7f\u7528\u7684\u5185\u5b58\uff0c\u4f46\u53ef\u4ee5\u5728\u5fc5\u8981\u65f6\u5f3a\u5236\u8fd0\u884c\u3002<\/li>\n<li><strong>\u76d1\u6d4b\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff1a<\/strong>\u5b9a\u671f\u76d1\u6d4b\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff0c\u4ee5\u786e\u4fdd\u5e94\u7528\u4e0d\u4f1a\u8d85\u51fa\u5185\u5b58\u9650\u5236\u3002<\/li>\n<li><strong>\u4f7f\u7528\u9ad8\u6548\u7684\u6570\u636e\u7ed3\u6784\uff1a<\/strong>\u9009\u62e9\u5408\u9002\u7684\u6570\u7ec4\u3001\u5bf9\u8c61\u548c\u6570\u636e\u7ed3\u6784\u53ef\u4ee5\u4f18\u5316\u5185\u5b58\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<p>\u6587\u4e2d\u5173\u4e8ephp,\u5185\u5b58\u7ba1\u7406\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300a\u638c\u63e1 PHP \u51fd\u6570\u7684\u5185\u5b58\u7ba1\u7406\u6280\u5de7\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1 PHP \u51fd\u6570\u7684\u5185\u5b58\u7ba1\u7406\u6280\u5de7 \u6b22\u8fce\u5404\u4f4d\u5c0f\u4f19\u4f34\u6765\u5230\u7c73\u4e91\uff0c\u76f8\u805a\u4e8e\u6b64\u90fd\u662f\u7f18\u54c8\u54c8\u54c8\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u638c\u63e1 PHP \u51fd\u6570\u7684\u5185\u5b58\u7ba1\u7406\u6280\u5de7\u300b\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0\u76f8\u5173\u7684\u77e5\u8bc6\u975e\u5e38\u611f\u5174\u8da3\u6216\u8005\u6b63\u5728\u81ea\u5b66\uff0c\u90fd\u53ef\u4ee5\u5173\u6ce8\u6211\uff0c\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\uff01\u5f53\u7136\uff0c\u6709\u4ec0\u4e48\u5efa\u8bae\u4e5f\u6b22\u8fce\u5728\u8bc4\u8bba\u7559\u8a00\u63d0\u51fa\uff01\u4e00\u8d77\u5b66\u4e60\uff01 \u638c\u63e1 PHP \u51fd\u6570\u7684\u5185\u5b58\u7ba1\u7406\u6280\u5de7 \u5f15\u8a00 \u5185\u5b58\u7ba1\u7406\u662f PHP \u4e2d\u81f3\u5173\u91cd\u8981\u7684\u4e00\u4e2a\u90e8\u5206\uff0c\u638c\u63e1\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u63d0\u5347\u5e94\u7528\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u3002\u672c\u6587\u5c06\u63a2\u8ba8 PHP \u4e2d\u5e38\u7528\u7684\u5185\u5b58\u7ba1\u7406\u51fd\u6570\uff0c\u5e76\u901a\u8fc7\u5b9e\u6218\u6848\u4f8b\u5e2e\u52a9\u5927\u5bb6\u7406\u89e3\u5176\u4f7f\u7528\u65b9\u5f0f\u3002 \u5e38\u7528\u7684\u5185\u5b58\u7ba1\u7406\u51fd\u6570 memory_get_usage()\uff1a\u83b7\u53d6\u5f53\u524d PHP \u8fdb\u7a0b\u5df2\u5206\u914d\u7684\u5185\u5b58\u91cf\u3002 memory_get_peak_usage()\uff1a\u83b7\u53d6\u5f53\u524d PHP \u8fdb\u7a0b\u5206\u914d\u8fc7\u7684\u6700\u5927\u5185\u5b58\u91cf\u3002 memory_limit()\uff1a\u83b7\u53d6\u6216\u8bbe\u7f6e\u5f53\u524d PHP \u8fdb\u7a0b\u7684\u5185\u5b58\u9650\u5236\u3002 gc_collect_cycles()\uff1a\u5f3a\u5236\u5783\u573e\u56de\u6536\u5668\u8fd0\u884c\u3002 \u5b9e\u6218\u6848\u4f8b 1. \u76d1\u63a7\u5185\u5b58\u4f7f\u7528\u60c5\u51b5 $startTime = memory_get_usage(); \/\/ \u6267\u884c\u4e00\u4e9b\u4ee3\u7801&#8230; $endTime = memory_get_usage(); echo &#8220;\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff1a&#8221;, $endTime &#8211; $startTime, &#8220;\u5b57\u8282&#8221;; 2. \u8bbe\u7f6e\u5185\u5b58\u9650\u5236 ini_set(&#8216;memory_limit&#8217;, &#8216;128M&#8217;); \/\/ \u8bbe\u7f6e\u5185\u5b58\u9650\u5236\u4e3a 128MB 3. \u91ca\u653e\u672a\u4f7f\u7528\u7684\u5185\u5b58 unset($large_array); \/\/ \u91ca\u653e\u5927\u578b\u6570\u7ec4 [&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-48434","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48434","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=48434"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48434\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=48434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=48434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=48434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}