\u751f\u6210\u5668\u4f1a\u5bf9PHP\u5e94\u7528\u7684\u6027\u80fd\u6709\u975e\u5e38\u5927\u7684\u5f71\u54cd<\/p><\/li>
PHP\u4ee3\u7801\u8fd0\u884c\u65f6\u8282\u7701\u5927\u91cf\u7684\u5185\u5b58<\/p><\/li>
\u6bd4\u8f83\u9002\u5408\u8ba1\u7b97\u5927\u91cf\u7684\u6570\u636e<\/p><\/li><\/ul>
\u90a3\u4e48\uff0c\u8fd9\u4e9b\u795e\u5947\u7684\u529f\u80fd\u7a76\u7adf\u662f\u5982\u4f55\u505a\u5230\u7684\uff1f\u6211\u4eec\u5148\u6765\u4e3e\u4e2a\u4f8b\u5b50\u3002<\/p>
\u6982\u5ff5\u5f15\u5165<\/h2>
\u9996\u5148\uff0c\u653e\u4e0b\u751f\u6210\u5668\u6982\u5ff5\u7684\u5305\u88b1\uff0c\u6765\u770b\u4e00\u4e2a\u7b80\u5355\u7684PHP\u51fd\u6570\uff1a<\/p>
\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u89c1\u7684PHP\u51fd\u6570\uff0c\u6211\u4eec\u5728\u5904\u7406\u4e00\u4e9b\u6570\u7ec4\u7684\u65f6\u5019\u7ecf\u5e38\u4f1a\u4f7f\u7528\u3002\u8fd9\u91cc\u7684\u4ee3\u7801\u4e5f\u975e\u5e38\u7b80\u5355\uff1a<\/p> \u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u51fd\u6570\u3002<\/p><\/li> \u51fd\u6570\u5185\u5305\u542b\u4e00\u4e2a for \u5faa\u73af\uff0c\u6211\u4eec\u5faa\u73af\u7684\u628a\u5f53\u524d\u65f6\u95f4\u653e\u5230 \u4e0b\u9762\u6ca1\u5b8c\uff0c\u6211\u4eec\u7ee7\u7eed\u3002\u6211\u4eec\u518d\u5199\u4e00\u4e2a\u51fd\u6570\uff0c\u628a\u8fd9\u4e2a\u51fd\u6570\u7684\u8fd4\u56de\u503c\u5faa\u73af\u6253\u5370\u51fa\u6765\uff1a<\/p> \u6211\u4eec\u5728\u6d4f\u89c8\u5668\u91cc\u9762\u770b\u4e00\u4e0b\u8fd0\u884c\u7ed3\u679c\uff1a<\/p> \u8fd9\u91cc\u975e\u5e38\u5b8c\u7f8e\uff0c\u6ca1\u6709\u4efb\u4f55\u95ee\u9898\u3002\uff08\u5f53\u7136 sleep(1) \u6548\u679c\u4f60\u4eec\u770b\u4e0d\u51fa\u6765\uff09<\/span><\/span><\/p> \u6211\u4eec\u6ce8\u610f\u5230\uff0c\u5728\u8c03\u7528\u51fd\u6570 createRange \u7684\u65f6\u5019\u7ed9 $number \u7684\u4f20\u503c\u662f10\uff0c\u4e00\u4e2a\u5f88\u5c0f\u7684\u6570\u5b57\u3002\u5047\u8bbe\uff0c\u73b0\u5728\u4f20\u9012\u4e00\u4e2a\u503c \u90a3\u4e48\uff0c\u5728\u51fd\u6570 createRange \u91cc\u9762\uff0c \u8fd9\u91cc\uff0c\u751f\u6210\u5668\u5c31\u53ef\u4ee5\u5927\u663e\u8eab\u624b\u4e86\u3002<\/p> \u6211\u4eec\u76f4\u63a5\u4fee\u6539\u4ee3\u7801\uff0c\u4f60\u4eec\u6ce8\u610f\u89c2\u5bdf\uff1a<\/p> \u770b\u4e0b\u8fd9\u6bb5\u548c\u521a\u521a\u5f88\u50cf\u7684\u4ee3\u7801\uff0c\u6211\u4eec\u5220\u9664\u4e86\u6570\u7ec4 $data \uff0c\u800c\u4e14\u4e5f\u6ca1\u6709\u8fd4\u56de\u4efb\u4f55\u5185\u5bb9\uff0c\u800c\u662f\u5728 time() \u4e4b\u524d\u4f7f\u7528\u4e86\u4e00\u4e2a\u5173\u952e\u5b57 \u6211\u4eec\u518d\u8fd0\u884c\u4e00\u4e0b\u7b2c\u4e8c\u6bb5\u4ee3\u7801\uff1a<\/p> \u6211\u4eec\u5947\u8ff9\u822c\u7684\u53d1\u73b0\u4e86\uff0c\u8f93\u51fa\u7684\u503c\u548c\u7b2c\u4e00\u6b21\u6ca1\u6709\u4f7f\u7528\u751f\u6210\u5668\u7684\u4e0d\u4e00\u6837\u3002\u8fd9\u91cc\u7684\u503c\uff08\u65f6\u95f4\u6233\uff09\u4e2d\u95f4\u95f4\u9694\u4e861\u79d2\u3002<\/p> \u8fd9\u91cc\u7684\u95f4\u9694\u4e00\u79d2\u5176\u5b9e\u5c31\u662f sleep(1) \u9020\u6210\u7684\u540e\u679c\u3002\u4f46\u662f\u4e3a\u4ec0\u4e48\u7b2c\u4e00\u6b21\u6ca1\u6709\u95f4\u9694\uff1f\u90a3\u662f\u56e0\u4e3a\uff1a<\/span><\/span><\/p> \u672a\u4f7f\u7528\u751f\u6210\u5668\u65f6\uff1a createRange \u51fd\u6570\u5185\u7684 for \u5faa\u73af\u7ed3\u679c\u88ab\u5f88\u5feb\u653e\u5230 $data \u4e2d\uff0c\u5e76\u4e14\u7acb\u5373\u8fd4\u56de\u3002\u6240\u4ee5\uff0c foreach \u5faa\u73af\u7684\u662f\u4e00\u4e2a\u56fa\u5b9a\u7684\u6570\u7ec4\u3002<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p><\/li> \u4f7f\u7528\u751f\u6210\u5668\u65f6\uff1a createRange \u7684\u503c\u4e0d\u662f\u4e00\u6b21\u6027\u5feb\u901f\u751f\u6210\uff0c\u800c\u662f\u4f9d\u8d56\u4e8e foreach \u5faa\u73af\u3002 foreach \u5faa\u73af\u4e00\u6b21\uff0c for \u6267\u884c\u4e00\u6b21\u3002<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p><\/li><\/ul> \u5230\u8fd9\u91cc\uff0c\u4f60\u5e94\u8be5\u5bf9\u751f\u6210\u5668\u6709\u70b9\u513f\u5934\u7eea\u3002<\/p> \u4e0b\u9762\u6211\u4eec\u6765\u5bf9\u4e8e\u521a\u521a\u7684\u4ee3\u7801\u8fdb\u884c\u5256\u6790\u3002<\/p> \u6211\u4eec\u6765\u8fd8\u539f\u4e00\u4e0b\u4ee3\u7801\u6267\u884c\u8fc7\u7a0b\u3002<\/p> \u9996\u5148\u8c03\u7528 createRange \u51fd\u6570\uff0c\u4f20\u5165\u53c2\u6570 foreach \u5f00\u59cb\u5bf9 $result \u5faa\u73af\uff0c\u8fdb\u6765\u9996\u5148 sleep(1) \uff0c\u7136\u540e\u5f00\u59cb\u4f7f\u7528 for \u7ed9\u7684\u4e00\u4e2a\u503c\u6267\u884c\u8f93\u51fa\u3002<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p><\/li> foreach \u51c6\u5907\u7b2c\u4e8c\u6b21\u5faa\u73af\uff0c\u5f00\u59cb\u7b2c\u4e8c\u6b21\u5faa\u73af\u4e4b\u524d\uff0c\u5b83\u5411 for \u5faa\u73af\u53c8\u8bf7\u6c42\u4e86\u4e00\u6b21\u3002<\/span><\/span><\/span><\/span><\/p><\/li> for \u5faa\u73af\u4e8e\u662f\u53c8\u6267\u884c\u4e86\u4e00\u6b21\uff0c\u5c06\u751f\u6210\u7684\u65f6\u95f4\u6233\u544a\u8bc9 foreach .<\/span><\/span><\/span><\/span><\/p><\/li> foreach \u62ff\u5230\u7b2c\u4e8c\u4e2a\u503c\uff0c\u5e76\u4e14\u8f93\u51fa\u3002\u7531\u4e8e foreach \u4e2d sleep(1) \uff0c\u6240\u4ee5\uff0c for \u5faa\u73af\u5ef6\u8fdf\u4e861\u79d2\u751f\u6210\u5f53\u524d\u65f6\u95f4<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p><\/li><\/ol> \u6240\u4ee5\uff0c\u6574\u4e2a\u4ee3\u7801\u6267\u884c\u4e2d\uff0c\u59cb\u7ec8\u53ea\u6709\u4e00\u4e2a\u8bb0\u5f55\u503c\u53c2\u4e0e\u5faa\u73af\uff0c\u5185\u5b58\u4e2d\u4e5f\u53ea\u6709\u4e00\u6761\u4fe1\u606f\u3002<\/p> \u65e0\u8bba\u5f00\u59cb\u4f20\u5165\u7684 $number \u6709\u591a\u5927\uff0c\u7531\u4e8e\u5e76\u4e0d\u4f1a\u7acb\u5373\u751f\u6210\u6240\u6709\u7ed3\u679c\u96c6\uff0c\u6240\u4ee5\u5185\u5b58\u59cb\u7ec8\u662f\u4e00\u6761\u5faa\u73af\u7684\u503c\u3002<\/span><\/span><\/p> \u5230\u8fd9\u91cc\uff0c\u4f60\u5e94\u8be5\u5df2\u7ecf\u5927\u6982\u7406\u89e3\u4ec0\u4e48\u662f\u751f\u6210\u5668\u4e86\u3002\u4e0b\u9762\u6211\u4eec\u6765\u8bf4\u4e0b\u751f\u6210\u5668\u539f\u7406\u3002<\/p> \u9996\u5148\u660e\u786e\u4e00\u4e2a\u6982\u5ff5\uff1a\u751f\u6210\u5668yield\u5173\u952e\u5b57\u4e0d\u662f\u8fd4\u56de\u503c\uff0c\u4ed6\u7684\u4e13\u4e1a\u672f\u8bed\u53eb\u4ea7\u51fa\u503c\uff0c\u53ea\u662f\u751f\u6210\u4e00\u4e2a\u503c<\/strong><\/p> \u90a3\u4e48\u4ee3\u7801\u4e2d foreach \u5faa\u73af\u7684\u662f\u4ec0\u4e48\uff1f\u5176\u5b9e\u662fPHP\u5728\u4f7f\u7528\u751f\u6210\u5668\u7684\u65f6\u5019\uff0c\u4f1a\u8fd4\u56de\u4e00\u4e2a Generator \u7c7b\u7684\u5bf9\u8c61\u3002 foreach \u53ef\u4ee5\u5bf9\u8be5\u5bf9\u8c61\u8fdb\u884c\u8fed\u4ee3\uff0c\u6bcf\u4e00\u6b21\u8fed\u4ee3\uff0cPHP\u4f1a\u901a\u8fc7 Generator \u5b9e\u4f8b\u8ba1\u7b97\u51fa\u4e0b\u4e00\u6b21\u9700\u8981\u8fed\u4ee3\u7684\u503c\u3002\u8fd9\u6837 foreach \u5c31\u77e5\u9053\u4e0b\u4e00\u6b21\u9700\u8981\u8fed\u4ee3\u7684\u503c\u4e86\u3002<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p> \u800c\u4e14\uff0c\u5728\u8fd0\u884c\u4e2d for \u5faa\u73af\u6267\u884c\u540e\uff0c\u4f1a\u7acb\u5373\u505c\u6b62\u3002\u7b49\u5f85 foreach \u4e0b\u6b21\u5faa\u73af\u65f6\u5019\u518d\u6b21\u548c for \u7d22\u8981\u4e0b\u6b21\u7684\u503c\u7684\u65f6\u5019\uff0c\u5faa\u73af\u624d\u4f1a\u518d\u6267\u884c\u4e00\u6b21\uff0c\u7136\u540e\u7acb\u5373\u518d\u6b21\u505c\u6b62\u3002\u76f4\u5230\u4e0d\u6ee1\u8db3\u6761\u4ef6\u4e0d\u6267\u884c\u7ed3\u675f\u3002<\/span><\/span><\/span><\/span><\/span><\/span><\/p> \u5f88\u591aPHP\u5f00\u53d1\u8005\u4e0d\u4e86\u89e3\u751f\u6210\u5668\uff0c\u5176\u5b9e\u4e3b\u8981\u662f\u4e0d\u4e86\u89e3\u5e94\u7528\u9886\u57df\u3002\u90a3\u4e48\uff0c\u751f\u6210\u5668\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u6709\u54ea\u4e9b\u5e94\u7528\uff1f<\/p> PHP\u5f00\u53d1\u5f88\u591a\u65f6\u5019\u90fd\u8981\u8bfb\u53d6\u5927\u6587\u4ef6\uff0c\u6bd4\u5982csv\u6587\u4ef6\u3001text\u6587\u4ef6\uff0c\u6216\u8005\u4e00\u4e9b\u65e5\u5fd7\u6587\u4ef6\u3002\u8fd9\u4e9b\u6587\u4ef6\u5982\u679c\u5f88\u5927\uff0c\u6bd4\u59825\u4e2aG\u3002\u8fd9\u65f6\uff0c\u76f4\u63a5\u4e00\u6b21\u6027\u628a\u6240\u6709\u7684\u5185\u5bb9\u8bfb\u53d6\u5230\u5185\u5b58\u4e2d\u8ba1\u7b97\u4e0d\u592a\u73b0\u5b9e\u3002<\/p> \u8fd9\u91cc\u751f\u6210\u5668\u5c31\u53ef\u4ee5\u6d3e\u4e0a\u7528\u573a\u5566\u3002\u7b80\u5355\u770b\u4e2a\u4f8b\u5b50\uff1a\u8bfb\u53d6text\u6587\u4ef6<\/p> \u6211\u4eec\u521b\u5efa\u4e00\u4e2atext\u6587\u672c\u6587\u6863\uff0c\u5e76\u5728\u5176\u4e2d\u8f93\u5165\u51e0\u884c\u6587\u5b57\uff0c\u793a\u8303\u8bfb\u53d6\u3002<\/p>![\"\u590d\u5236\u4ee3\u7801\"\/](\"https:\/\/api.hu-rong.com\/uploads\/image\/20210830\/1630294425865758.gif\")
<\/a><\/span><\/p><\/a><\/span><\/p>function createRange($number){\n $data = []; for($i=0;$i<$number;$i++){\n $data[] = time();\n } return $data;\n}<\/pre><\/a><\/span><\/p><\/a><\/span><\/p>$data<\/code>\u91cc\u9762<\/span><\/span><\/p><\/li>for<\/code>\u5faa\u73af\u6267\u884c\u5b8c\u6bd5\uff0c\u628a $data \u8fd4\u56de\u51fa\u53bb\u3002<\/span><\/span><\/p><\/li><\/ol>$result = createRange(10); \/\/ \u8fd9\u91cc\u8c03\u7528\u4e0a\u9762\u6211\u4eec\u521b\u5efa\u7684\u51fd\u6570foreach($result as $value){ sleep(1);\/\/\u8fd9\u91cc\u505c\u987f1\u79d2\uff0c\u6211\u4eec\u540e\u7eed\u6709\u7528 echo $value.'<br \/>';\n}<\/pre>![\"\"\/](\"https:\/\/api.hu-rong.com\/uploads\/image\/20210830\/1630294425478930.png\")
<\/p>\u601d\u8003\u4e00\u4e2a\u95ee\u9898<\/h2>
10000000<\/code>\uff081000\u4e07\uff09\u3002<\/span><\/span><\/span><\/p>for<\/code>\u5faa\u73af\u5c31\u9700\u8981\u6267\u884c1000<\/code>\u4e07\u6b21\u3002\u4e14\u67091000<\/code>\u4e07\u4e2a\u503c\u88ab\u653e\u5230 $data \u91cc\u9762\uff0c\u800c$data<\/code>\u6570\u7ec4\u5728\u662f\u88ab\u653e\u5728\u5185\u5b58\u5185\u3002\u6240\u4ee5\uff0c\u5728\u8c03\u7528\u51fd\u6570\u65f6\u5019\u4f1a\u5360\u7528\u5927\u91cf\u5185\u5b58\u3002<\/span><\/span><\/span><\/p>\u521b\u5efa\u751f\u6210\u5668<\/h2>
function createRange($number){ for($i=0;$i<$number;$i++){\n yield time();\n }\n}<\/pre>yield\u3002<\/code><\/span><\/span><\/span><\/span><\/p>\u4f7f\u7528\u751f\u6210\u5668<\/h2>
$result = createRange(10); \/\/ \u8fd9\u91cc\u8c03\u7528\u4e0a\u9762\u6211\u4eec\u521b\u5efa\u7684\u51fd\u6570foreach($result as $value){ sleep(1); echo $value.'<br \/>';\n}<\/pre>![\"\"\/](\"https:\/\/api.hu-rong.com\/uploads\/image\/20210830\/1630294425150798.png\")
<\/p>\u6df1\u5165\u7406\u89e3\u751f\u6210\u5668<\/h2>
\u4ee3\u7801\u5256\u6790<\/h3>
<\/a><\/span><\/p><\/a><\/span><\/p>function createRange($number){ for($i=0;$i<$number;$i++){\n yield time();\n }\n}$result = createRange(10); \/\/ \u8fd9\u91cc\u8c03\u7528\u4e0a\u9762\u6211\u4eec\u521b\u5efa\u7684\u51fd\u6570foreach($result as $value){ sleep(1); echo $value.'<br \/>';\n}<\/pre><\/a><\/span><\/p><\/a><\/span><\/p>10<\/code>\uff0c\u4f46\u662f for \u503c\u6267\u884c\u4e86\u4e00\u6b21\u7136\u540e\u505c\u6b62\u4e86\uff0c\u5e76\u4e14\u544a\u8bc9 foreach \u7b2c\u4e00\u6b21\u5faa\u73af\u53ef\u4ee5\u7528\u7684\u503c\u3002<\/span><\/span><\/span><\/span><\/span><\/p><\/li>\u6982\u5ff5\u7406\u89e3<\/h3>
\u5b9e\u9645\u5f00\u53d1\u5e94\u7528<\/h2>
\u8bfb\u53d6\u8d85\u5927\u6587\u4ef6<\/h3>
![\"\"\/](\"https:\/\/api.hu-rong.com\/uploads\/image\/20210830\/1630294426203991.png\")
<\/p><\/a><\/span><\/p><\/a><\/span><\/p><?phpheader("content-type:text\/html;charset=utf-8");function readTxt()\n{ # code... $handle = fopen(".\/test.txt", 'rb'); while (feof($handle)===false) { # code...\n yield fgets($handle);\n } fclose($handle);\n}foreach (readTxt() as $key => $value) { # code... echo $value.'<br \/>';\n}<\/pre>
![\"\"\/](\"https:\/\/api.hu-rong.com\/uploads\/image\/20210830\/1630294426138121.png\")
<\/p>