{"id":150104,"date":"2020-09-02T06:17:45","date_gmt":"2020-09-01T22:17:45","guid":{"rendered":"http:\/\/4563.org\/?p=150104"},"modified":"2020-09-02T06:17:45","modified_gmt":"2020-09-01T22:17:45","slug":"php-%e4%b8%ad%e5%a6%82%e4%bd%95%e5%ae%9a%e4%bd%8d%e5%86%85%e5%ad%98%e6%b3%84%e9%9c%b2%e7%9a%84%e4%bb%a3%e7%a0%81%e6%89%80%e5%9c%a8%e8%a1%8c%e5%91%a2%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=150104","title":{"rendered":"PHP \u4e2d\u5982\u4f55\u5b9a\u4f4d\u5185\u5b58\u6cc4\u9732\u7684\u4ee3\u7801\u6240\u5728\u884c\u5462\uff1f"},"content":{"rendered":"
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PHP \u4e2d\u5982\u4f55\u5b9a\u4f4d\u5185\u5b58\u6cc4\u9732\u7684\u4ee3\u7801\u6240\u5728\u884c\u5462\uff1f <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : JJstyle <\/span> <\/i> 22<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

phper \u4eec\u5e94\u8be5\u90fd\u4f1a\u81ea\u52a8\u5185\u5b58\u6cc4\u9732\u4e3b\u8981\u7531\u4e8e\u5faa\u73af\u5e94\u7528\u5bfc\u81f4\u7684\uff0c\u6bd4\u5982\u5982\u4e0b\u4ee3\u7801\u5c06\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u9732\uff1a<\/p>\n

function fun1() {   $a = ['hello'];   $a[] = &$a; }  func1(); <\/code><\/pre>\n
\u81ea\u5df1\u7684\u4ee3\u7801\u8fd8\u597d\uff0c\u53ef\u4ee5\u68c0\u67e5\u68c0\u67e5\uff0c\u7531\u4e8e\u4f7f\u7528\u4e86\u7b2c\u4e09\u65b9\u4f9d\u8d56\uff0c\u600e\u4e48\u5728\u4f9d\u8d56\u7684\u6587\u4ef6\u4e2d\u5b9a\u4f4d\u5230\u6709\u8fd9\u79cd\u6709\u5185\u5b58\u6cc4\u9732\u7684\u4ee3\u7801\u5462\uff1f\u5c0f\u5f1f\u5b9e\u5728\u60f3\u4e0d\u51fa\u6709\u4ec0\u4e48\u597d\u7684\u529e\u6cd5<\/p>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (18<\/span>)        <\/div>\n
 <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : leven87 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 memory_get_usage ? \u4e0d\u61c2
    \u77e5\u540d\u4e00\u4e9b\u7684\u7b2c\u4e09\u65b9\u5e94\u7528\uff0c\u90fd\u6709 github \u6216\u8005\u8bba\u575b\u5427\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : sagaxu <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5faa\u73af\u5f15\u7528\u4e0d\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u9732                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : JJstyle <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @sagaxu \u4f60\u53ef\u4ee5\u6267\u884c\u6211\u4e0a\u9762\u7684\u90a3\u6bb5\u4ee3\u7801\u8bd5\u8bd5\u5185\u5b58\u4f7f\u7528                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : ben1024 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 xdebug \u76d1\u542c\u51fd\u6570 memory_get_usage(true)\/1024\/1024\/8 \u7684\u5185\u5b58\u503c?                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : wangritian <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 apache\/php-fpm\/swoole \u5e94\u8be5\u90fd\u6709\u4e00\u4e2a\u53eb max_request \u7684\u53c2\u6570\uff0c\u6267\u884c\u4e00\u5b9a\u91cf\u8bf7\u6c42\u540e\u91cd\u542f\u8fdb\u7a0b\uff0c\u54ea\u6015\u4ee3\u7801\u6709\u5185\u5b58\u6cc4\u6f0f\u4e5f\u4f1a\u8fd8\u7ed9\u7cfb\u7edf                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : cholerae <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e0d\u61c2 php\uff0c\u4e0d\u8fc7\u641c\u4e86\u4e00\u4e0b\u770b php 5.3 \u5f00\u59cb\u5c31\u6709\u80fd\u56de\u6536\u73af\u7684 gc \u4e86\uff0c\u4e3a\u5565\u8fd9\u4e2a\u4ee3\u7801\u4f1a\u5185\u5b58\u6cc4\u6f0f\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : JJstyle <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @wangritian \u662f\u4e00\u6bb5\u811a\u672c\uff0c\u5728 cli \u4e0b\u8fd0\u884c\u7684\uff0c\u5176\u5b9e\u6211\u53ea\u662f\u8ba8\u8bba\u4e00\u4e2a\u65b9\u6cd5\uff0c\u6bd5\u7adf\u6211\u53ef\u4ee5\u53d1\u73b0\u5f53\u5185\u5b58\u8fbe\u5230\u4e00\u5b9a\u91cf\u65f6\u9000\u51fa\uff0crnhou \u8ba9 supervisor \u5e2e\u6211\u91cd\u542f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : JJstyle <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @JJstyle #7 rnhou => \u7136\u540e                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : JJstyle <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @cholerae \u6211\u770b\u4e86\u4e00\u4e0b php \u7684\u6587\u6863\uff0c\u5927\u6982\u662f php5.3 \u540e\uff0c\u53ea\u6709\u5f53\u6839\u7f13\u51b2\u533a\u6ee1\u4e86\u624d\u4f1a \u6e05\u9664\u5faa\u73af\u5f15\u7528\u4ea7\u751f\u7684\u5783\u573e                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : superwhite <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 php7.2 win,PHP7.3 centOs,\u8bd5\u4e86\u4f60\u7684\u4ee3\u7801\uff0c\u4e0d\u4f1a\u5185\u5b58\u6cc4\u9732                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : CismonX <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5728 PHP \u7684 debug build \u4e2d\uff0cPHP \u8fdb\u7a0b\u9000\u51fa\u65f6 Zend MM \u4f1a\u6253\u5370\u51fa\u672a\u91ca\u653e\u7684\u5185\u5b58\u7684\u76f8\u5173\u4fe1\u606f\uff08\u4ec5\u9650\u90a3\u4e9b\u7528 emalloc \u7cfb\u5217\u51fd\u6570\u5206\u914d\u7684\u7531 Zend MM \u7ba1\u7406\u7684\u5185\u5b58\uff09\uff0c\u5305\u62ec\u5176\u5730\u5740\u3001\u5206\u914d\u8fd9\u5757\u5185\u5b58\u7684\u76f8\u5173\u51fd\u6570\u7b49<\/p>\n
    \u5f53\u7136\uff0c\u5b9e\u9645\u8c03\u8bd5\u7684\u65f6\u5019\u8fd9\u4e9b\u4fe1\u606f\u53ef\u80fd\u4e0d\u591f\uff0c\u9700\u8981 valgrind \u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : wangbenjun5 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @wangritian \u6b63\u89e3\uff0c\u9664\u975e\u5199\u5e38\u9a7b\u8fdb\u7a0b\u7684\u5e94\u7528\uff0c\u4e0d\u7136\u4e0d\u7528\u64cd\u5fc3\u5185\u5b58\u6cc4\u9732\u95ee\u9898\uff0c\u5982\u679c\u8981\u5199\u5e38\u9a7b\u8fdb\u7a0b\u5e94\u7528\uff0c\u4e3a\u4f55\u4e0d\u7528 go                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : JJstyle <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @wangbenjun5 \u5e2e\u670b\u53cb\u7ef4\u62a4\u4e00\u4e2a\u4e2a\u4eba\u9879\u76ee\uff0c\u6070\u597d\u6211\u5bf9 php \u719f\u6089                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : zjsxwc <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u770b\u6765\u53ea\u80fd\u624b\u52a8 gc \u4e86<\/p>\n
     1 <?php
     2 
     3 
     4 function fun1()
     5 {
     6 $a = [‘hello’];
     7 $a[] = &$a;
     8 }
     9 
     10 while(true) {
     11 fun1(); 
     12 gc_collect_cycles();
     13 echo memory_get_usage() . “n”;
     14 sleep(1);
     15 }                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : zjsxwc <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 php \u78b0\u5230\u5185\u5b58\u201c\u6cc4\u9732\u201d\u95ee\u9898\uff0c\u6709\u51e0\u4e2a\u65b9\u9762
    1. \u201c\u5168\u5c40\u53d8\u91cf\u201d \u6216\u8005 \u201c\u5e38\u9a7b\u4f9d\u8d56\u6ce8\u5165\u5bb9\u5668\u5bf9\u8c61\u201d \u7684\u81a8\u80c0\u5bfc\u81f4\u5185\u5b58\u4e0d\u591f\uff0c\u6bd4\u5982 orm \u4e2d EntityManager \u6ca1\u6709\u53ca\u65f6 clear \u8ffd\u8e2a\u7684\u4e0d\u518d\u88ab\u4f7f\u7528\u7684\u6570\u636e\u5e93\u5b9e\u4f53\u5bf9\u8c61\u3002
    2. \u4ee3\u7801\u903b\u8f91\u201c\u6b7b\u5faa\u73af\u201d \u5bfc\u81f4\u5185\u5b58\u4e0d\u591f\u3002
    3. \u4f7f\u7528\u4e86\u5b58\u5728\u5185\u5b58\u6cc4\u9732 bug \u7684 c\/c++\u62d3\u5c55\u3002<\/p>\n
    \u5f53\u63a5\u4e0a\u6211\u7684\u56de\u7b54\uff0c\u5f53 php \u5185\u5b58\u8fbe\u5230\u8bbe\u7f6e\u503c\u65f6\uff0c\u6bd4\u5982 32M \u65f6\u4f1a\u81ea\u52a8\u89e6\u53d1\u5783\u573e\u56de\u6536\uff0c\u6240\u4ee5\u6ca1\u6709\u5fc5\u8981\u624b\u52a8 gc_collect_cycles();<\/p>\n
    php 7.3 \u4e4b\u540e\u6709\u4e2a gc_status();\u53ef\u4ee5\u770b gc \u72b6\u6001<\/p>\n
    “`
    [email protected]:~$ cat 2.php
    <?php<\/p>\n
    function fun1()
    {
     $a = [‘hello’];
     $a[] = &$a;
    }<\/p>\n
    while(true) {
    var_dump(gc_status());
     fun1();
    var_dump(gc_status());
     gc_collect_cycles();
     echo memory_get_usage() . “n”;
     sleep(1);
    }
    [email protected]:~$ ‘\/home\/zjsxwc\/php74\/bin\/php’ 2.php 
    array(4) {
     [“runs”]=>
     int(0)
     [“collected”]=>
     int(0)
     [“threshold”]=>
     int(10001)
     [“roots”]=>
     int(0)
    }
    array(4) {
     [“runs”]=>
     int(0)
     [“collected”]=>
     int(0)
     [“threshold”]=>
     int(10001)
     [“roots”]=>
     int(1)
    }
    365496
    array(4) {
     [“runs”]=>
     int(1)
     [“collected”]=>
     int(1)
     [“threshold”]=>
     int(10001)
     [“roots”]=>
     int(0)
    }
    array(4) {
     [“runs”]=>
     int(1)
     [“collected”]=>
     int(1)
     [“threshold”]=>
     int(10001)
     [“roots”]=>
     int(1)
    }
    365496<\/p>\n
    “`                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : wangritian <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @wangbenjun5 +1 \u6211\u4e5f\u662f web \u9879\u76ee\u7528 php-swoole\uff0c\u5c0f\u5de5\u5177\u6216\u8005\u4e2d\u95f4\u4ef6\u7528 go\/python                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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     \u8cc7\u6df1\u5927\u4f6c : gouchaoer2 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 php \u6709\u68c0\u6d4b\u5faa\u73af\u5f15\u7528\u7684\u673a\u5236\uff0c\u53ea\u662f\u5185\u5b58\u6da8\u5230\u4e00\u5b9a\u5927\u5c0f\u624d\u4f1a\u89e6\u53d1                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : jimduan <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 php5.3 \u540e\u7684 gc\uff0c \u5df2\u7ecf\u81ea\u52a8\u5e2e\u6211\u4eec\u89e3\u51b3\u4e86\uff01 
    \u53ea\u9700\u8981\u66f4\u591a\u7684\u5173\u6ce8\uff0c \u4e1a\u52a1\u573a\u666f\u4e2d\u662f\u5426\u4e00\u6b21\u6027\u62c9\u53d6\u8fc7\u591a\u7684\u6570\u636e\u8fdb\u884c\u8ba1\u7b97\u5bfc\u81f4 OOM \uff1b\u5e38\u9a7b\u5185\u5b58\u811a\u672c\u662f\u5426\u8bf7\u6c42\u4e86\u5f88\u591a\u8d44\u6e90\u6ca1\u6709\u91ca\u653e<\/p>\n
    PHP \u7684\u5783\u573e\u56de\u6536\u673a\u5236\uff0d\u7406\u89e3 PHP \u5982\u4f55\u89e3\u51b3\u5faa\u73af\u5f15\u7528\u5bfc\u81f4\u7684\u5185\u5b58\u6cc4\u6f0f\u95ee\u9898
    http:\/\/blog.100dos.com\/2017\/04\/07\/php-garbage-collection-collect-cycles\/<\/p>\n
    \u8bf7\u624b\u52a8\u91ca\u653e\u4f60\u7684\u8d44\u6e90(Please release resources manually)
    https:\/\/www.laruence.com\/2012\/07\/25\/2662.html                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    PHP \u4e2d\u5982\u4f55\u5b9a\u4f4d\u5185\u5b58\u6cc4\u9732\u7684\u4ee3\u7801\u6240…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/150104"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=150104"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/150104\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=150104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=150104"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=150104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}