{"id":30603,"date":"2023-05-23T19:11:00","date_gmt":"2023-01-25T03:50:23","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/php%e7%9a%84%e5%90%84%e7%a7%8d%e7%ac%94%e8%ae%b0\/"},"modified":"2025-08-12T19:57:38","modified_gmt":"2025-08-12T11:57:38","slug":"php%e7%9a%84%e5%90%84%e7%a7%8d%e7%ac%94%e8%ae%b0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/php%e7%9a%84%e5%90%84%e7%a7%8d%e7%ac%94%e8%ae%b0\/","title":{"rendered":"PHP\u7684\u5404\u79cd\u7b14\u8bb0"},"content":{"rendered":"<p>\u8fd9\u662f\u6709\u5173PHP7\u7684\u7b14\u8bb0\u3002<\/p>\n<h3>\u6307\u5b9a\u7edd\u5bf9\u8def\u5f84\u4ee5\u5305\u542b\u5171\u7528\u6587\u4ef6\u3002<\/h3>\n<p>\u56e0\u4e3a\u4f7f\u7528\u76f8\u5bf9\u8def\u5f84\u4f1a\u5f88\u9ebb\u70e6\uff0c\u6240\u4ee5\u9009\u62e9\u4f7f\u7528\u7edd\u5bf9\u8def\u5f84\u8fdb\u884c\u6307\u5b9a\u3002<\/p>\n<pre class=\"post-pre\"><code>include('..\/..\/common.php');\r\n<\/code><\/pre>\n<p>\u8fd9\u6837\u662f\u4e0d\u884c\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code>include('\/common.php');\r\n<\/code><\/pre>\n<p>\u4f7f\u7528$_SERVER[&#8216;DOCUMENT_ROOT&#8217;]\u3002<\/p>\n<pre class=\"post-pre\"><code>include('$_SERVER['DOCUMENT_ROOT'] . \/common.php');\r\n<\/code><\/pre>\n<p>\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u5728Apache\u3001Centos7\u73af\u5883\u4e2d\uff0c$_SERVER[&#8216;DOCUMENT_ROOT&#8217;]\u4f1a\u8fd4\u56de\/var\/www\/html\u3002<\/p>\n<p>\u83b7\u53d6\u6587\u6863\u6839\u8def\u5f84\u7684\u91cd\u70b9\u8981\u8bb0\u4f4f\u7684\u65b9\u6cd5\u662f\u5728PHP\u4e2d\u5305\u542b\u5171\u4eab\u90e8\u5206\u65f6\u7684\u53c2\u8003\u7ad9\u70b9\u3002<\/p>\n<h3>require\u3001require_once\u3001include\u3001include_once\u7684\u533a\u522b\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u5728\u4f7f\u7528require\u51fd\u6570\u6307\u5b9a\u7684\u6587\u4ef6\u4e0d\u5b58\u5728\u65f6\uff0c\u4f1a\u5bfc\u81f4\u81f4\u547d\u9519\u8bef\u5e76\u4e2d\u65ad\u5904\u7406\uff1b\u800c\u5728\u4f7f\u7528include\u51fd\u6570\u6307\u5b9a\u7684\u6587\u4ef6\u4e0d\u5b58\u5728\u65f6\uff0c\u4f1a\u53d1\u51fa\u8b66\u544a\u5e76\u7ee7\u7eed\u5904\u7406\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u5728\u52a0\u8f7d\u5916\u90e8\u6587\u4ef6\u65f6\u4f7f\u7528require\u3001require_once\u3001include\u3001include_once\u7684\u533a\u522b\u7684\u53c2\u8003\u7f51\u7ad9\uff1a<\/p>\n<p>\u5728PHP\u4e2d\uff0cinclude\u548crequire\u7684\u4f7f\u7528\u65b9\u6cd5\u548c\u533a\u522b\u53ef\u4ee5\u8fdb\u884c\u6bd4\u8f83\u3002<\/p>\n<p>include()\u548crequire()\u4e4b\u95f4\u7684\u533a\u522b\u3002\u4e5f\u5199\u4e86\u5177\u4f53\u7684\u4f7f\u7528\u65b9\u6cd5\u533a\u5206\u3002<\/p>\n<h3>\u7ecf\u5e38\u4f7f\u7528\u7684PHP\u547d\u4ee4\u884c\u9009\u9879\u4e00\u89c8<\/h3>\n<p>&#8211; \u5c55\u793a\u5e2e\u52a9\u4fe1\u606f<\/p>\n<pre class=\"post-pre\"><code>$ php -h\r\nUsage: php [options] [-f] &lt;file&gt; [--] [args...]\r\n   php [options] -r &lt;code&gt; [--] [args...]\r\n   php [options] [-B &lt;begin_code&gt;] -R &lt;code&gt; [-E &lt;end_code&gt;] [--] [args...]\r\n   php [options] [-B &lt;begin_code&gt;] -F &lt;file&gt; [-E &lt;end_code&gt;] [--] [args...]\r\n   php [options] -S &lt;addr&gt;:&lt;port&gt; [-t docroot] [router]\r\n   php [options] -- [args...]\r\n   php [options] -a\r\n\r\n  -a               Run as interactive shell\r\n  -c &lt;path&gt;|&lt;file&gt; Look for php.ini file in this directory\r\n<\/code><\/pre>\n<p>\u5728\u547d\u4ee4\u884c\u4e0a\u6267\u884cPHP\u4ee3\u7801\u3002<\/p>\n<pre class=\"post-pre\"><code>$ php -r \"echo 'hello world'.PHP_EOL;\"\r\nhello world\r\n$\r\n$ php -r \"phpinfo();\" | grep php.ini\r\nConfiguration File (php.ini) Path =&gt; \/etc \r\n<\/code><\/pre>\n<p>\u8bfb\u53d6\u5e76\u6267\u884cf\u3001php\u6587\u4ef6\u3002\u5373\u4f7f\u6ca1\u6709\u6dfb\u52a0\u4efb\u4f55\u9009\u9879\uff0c\u4e5f\u53ef\u4ee5\u6267\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code>$ cat testphp.php \r\n&lt;?php\r\necho 'hello php'.PHP_EOL;\r\n?&gt;\r\n$ php -f testphp.php \r\nhello php\r\n$ php testphp.php \r\nhello php\r\n<\/code><\/pre>\n<p>\u83b7\u53d6php\u4fe1\u606f\u3002\u4e0ephpinfo()\u76f8\u540c\u5427\u3002<\/p>\n<pre class=\"post-pre\"><code>$ php -i | less\r\n<\/code><\/pre>\n<p>&#8211; \u8fd9\u4e2a\u662f\u7528\u4e8e\u663e\u793a\u914d\u7f6e\u6587\u4ef6\u76f8\u5173\u5217\u8868\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code>$ php --ini\r\nConfiguration File (php.ini) Path: \/etc\r\nLoaded Configuration File:         \/etc\/php.ini\r\nScan for additional .ini files in: \/etc\/php.d\r\nAdditional .ini files parsed:      \/etc\/php.d\/20-bz2.ini,\r\n\/etc\/php.d\/20-calendar.ini,\r\n\/etc\/php.d\/20-ctype.ini,\r\n<\/code><\/pre>\n<p>&#8211; \u663e\u793a\u7f16\u8bd1\u6a21\u5757\u7684\u5217\u8868\u3002<\/p>\n<pre class=\"post-pre\"><code>$ php -m\r\n[PHP Modules]\r\nbz2\r\ncalendar\r\nCore\r\n<\/code><\/pre>\n<p>\u663e\u793a\u8bbe\u7f6e\u65e5\u671f\u548c\u6269\u5c55\u6a21\u5757\u3002<\/p>\n<pre class=\"post-pre\"><code>$ php --ri sqlite3\r\n\r\nsqlite3\r\n\r\nSQLite3 support =&gt; enabled\r\nSQLite Library =&gt; 3.7.17\r\n\r\nDirective =&gt; Local Value =&gt; Master Value\r\nsqlite3.extension_dir =&gt; no value =&gt; no value\r\n\r\n$ #\u5b58\u5728\u3057\u306a\u3044\u62e1\u5f35\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u6307\u5b9a\u3057\u305f\u5834\u5408\r\n$ php --ri sqlite\r\nExtension 'sqlite' not present.\r\n<\/code><\/pre>\n<p>a\u3001\u4ea4\u4e92\u5f0f\u5916\u58f3\u6a21\u5f0f\uff08\u4e92\u52a8\u5916\u58f3\u6a21\u5f0f\uff09\u3002\u5f53\u60a8\u60f3\u5728\u547d\u4ee4\u884c\u4e0a\u5c1d\u8bd5\u4e00\u4e9b PHP \u4ee3\u7801\u65f6\u975e\u5e38\u65b9\u4fbf\u3002\u53ef\u4ee5\u901a\u8fc7\u6309\u4e0b Ctrl+C \u6765\u7ed3\u675f\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n$ php -a\r\nInteractive shell\r\n\r\nphp &gt; echo 'aiueo';\r\naiueo\r\nphp &gt; echo 3 + 3;\r\n6\r\nphp &gt; echo 3 * 3;\r\n9\r\nphp &gt; phpinfo();\r\nphpinfo()\r\nPHP Version =&gt; 7.4.3\r\n<\/code><\/pre>\n<h3>\u901a\u8fc7auto_prepend_file\u5b9e\u73b0\u521d\u59cb\u5316\u8fc7\u7a0b\u7684\u5171\u4eab\u5316\uff0cphp.ini\u6587\u4ef6\u3002<\/h3>\n<p>\u60a8\u53ef\u4ee5\u5728php.ini\u4e2d\u7684auto_prepend_file\u9009\u9879\u4e2d\u6307\u5b9a\u5728\u6267\u884c\u4e3b\u8981php\u6587\u4ef6\u4e4b\u524d\u8981\u6267\u884c\u7684php\u6587\u4ef6\u3002<br \/>\n\u5b9e\u9645\u4f7f\u7528\u7684\u6548\u679c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">; Automatically add files before PHP document.\r\n; http:\/\/php.net\/auto-prepend-file\r\n;auto_prepend_file =\r\n<\/span><span class=\"py\">auto_prepend_file<\/span> <span class=\"p\">=<\/span> <span class=\"s\">\/home\/vagrant\/test\/testphp.php<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>$ cat \/home\/vagrant\/test\/testphp.php\r\n&lt;?php\r\necho 'hello php'.PHP_EOL;\r\n?&gt;\r\n\r\n$ cat \/home\/vagrant\/test\/testphp2.php\r\n&lt;?php\r\necho 'hello php2'.PHP_EOL;\r\n?&gt;\r\n\r\n$ php testphp2.php \r\nhello php\r\nhello php2\r\n<\/code><\/pre>\n<p>\u5c3d\u7ba1\u6267\u884c\u4e86testphp2.php\uff0c\u4f46testphp.php\u5148\u524d\u5df2\u88ab\u6267\u884c\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u6211\u60f3\u8bd5\u4e00\u8bd5\u5728\u4f7f\u7528PHP\u7684Web\u73af\u5883\u4e2d\u662f\u5426\u4e5f\u9002\u7528\u8fd9\u4e2a\u8bbe\u7f6e\uff0c\u4f46\u662f\u5f53\u6211\u5728Apache\u4e0a\u6267\u884c\u4e00\u4e2a\u968f\u610f\u7684PHP\u9875\u9762\u65f6\uff0c\u4f1a\u51fa\u73b0\u9519\u8bef\uff08HTTP ERROR 500\uff09\u3002 \uff08Apache2.4\uff09<\/p>\n<p>\u67e5\u770bApache\u7684\u9519\u8bef\u65e5\u5fd7\uff08\/etc\/httpd\/logs\/error_log\uff09\u4f1a\u53d1\u73b0\u4ee5\u4e0b\u9519\u8bef\u8f93\u51fa\uff08\u7701\u7565\u4e86\u65f6\u95f4\u6233\u7b49\u4fe1\u606f\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code>PHP Fatal error:  Unknown: Failed opening required '\/home\/vagrant\/test\/testphp.php' (include_path='.:\/usr\/share\/pear:\/usr\/share\/php') in Unknown on line 0\r\nPHP Warning:  Unknown: failed to open stream: Permission denied in Unknown on line 0\r\n<\/code><\/pre>\n<p>\u5728\u7f51\u4e0a\u7a0d\u5fae\u67e5\u4e86\u4e00\u4e0b\uff0c\u53d1\u73b0\u5f88\u591a\u4eba\u5728.htaccess\u6587\u4ef6\u4e2d\u8fdb\u884cauto_prepend_file\u7684\u8bbe\u7f6e\uff0c\u800c\u4e0d\u662f\u5728php.ini\u6587\u4ef6\u4e2d\u3002\u4e8e\u662f\u6211\u5c1d\u8bd5\u5728.htaccess\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\u5e76\u8fdb\u884c\u6d4b\u8bd5\uff0c\u4f46\u662f\u4ecd\u7136\u9047\u5230\u4e86\u9519\u8bef\uff08Internal Server Error\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code>php_value auto_prepend_file \"\/home\/vagrant\/test\/testphp.php\"\r\n<\/code><\/pre>\n<p>\u67e5\u770bApache\u7684\u9519\u8bef\u65e5\u5fd7\uff08\/etc\/httpd\/logs\/error_log\uff09\uff0c\u4f1a\u8f93\u51fa\u4ee5\u4e0b\u9519\u8bef\uff08\u7701\u7565\u65f6\u95f4\u6233\u7b49\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code> \/var\/www\/html\/.htaccess: php_value not allowed here\r\n<\/code><\/pre>\n<p>\u7531\u4e8e\u5728\u8fd9\u91cc(.htaccess)\u4f7f\u7528php_value\u662f\u65e0\u6548\u7684\uff0c\u6240\u4ee5\u6211\u5c1d\u8bd5\u5728httpd.conf\u6587\u4ef6\u7684\u672b\u5c3e\u6dfb\u52a0\u76f8\u540c\u7684\u4e00\u884c\u5e76\u91cd\u65b0\u542f\u52a8Apache\uff0c\u4f46\u662f\u53c8\u51fa\u73b0\u4e86\u9519\u8bef(HTTP ERROR 500)\u3002\u9519\u8bef\u65e5\u5fd7(\/etc\/httpd\/logs\/error_log)\u7684\u5185\u5bb9\u5982\u4e0b\u3002<\/p>\n<pre class=\"post-pre\"><code>PHP Fatal error:  Unknown: Failed opening required '\/home\/vagrant\/test\/testphp.php' (include_path='.:\/usr\/share\/pear:\/usr\/share\/php') in Unknown on line 0\r\nPHP Warning:  Unknown: failed to open stream: Permission denied in Unknown on line 0\r\n<\/code><\/pre>\n<p>\u8fd9\u4e2a\u9519\u8bef\u7684\u5185\u5bb9\u4e0e\u7b2c\u4e00\u6b21\u5c1d\u8bd5\u65f6\u7684\u9519\u8bef\u76f8\u540c\u3002\u6240\u4ee5\u9519\u8bef\u7684\u5185\u5bb9\u662f\u6307\u5b9a\u7684\u6587\u4ef6\u8def\u5f84\u65e0\u6cd5\u8bfb\u53d6\uff0c\u5305\u542b\u8def\u5f84\u662f.:\/usr\/share\/pear:\/usr\/share\/php\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u5728\/usr\/share\/php\/\u4e0b\u6dfb\u52a0\u4e86\u4e00\u4e2aPHP\u6d4b\u8bd5\u6587\u4ef6\uff0c\u5e76\u76f8\u5e94\u5730\u4fee\u6539\u4e86httpd.conf\u4e2d\u7684\u4e00\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code>#\u6700\u5f8c\u306b\u8ffd\u52a0\r\nphp_value auto_prepend_file \"\/usr\/share\/php\/testphp.php\"\r\n<\/code><\/pre>\n<p>\u5f53\u4f60\u91cd\u542f\u4e86Apache\u4e4b\u540e\uff0c\u6211\u80fd\u591f\u5b8c\u6210\u6211\u60f3\u505a\u7684\u4e8b\u60c5\u3002\u5f53\u6267\u884cApache\u4e0a\u7684\u4efb\u610fPHP\u9875\u9762\u65f6\uff0c\u9996\u5148\u4f1a\u6267\u884c\/usr\/share\/php\/testphp.php\u3002\u4e0d\u4ec5\u5728\/usr\/share\/php\u76ee\u5f55\u4e0b\uff0c\u8fd8\u53ef\u4ee5\u5728\/etc\/httpd\/conf\u76ee\u5f55\u4e0b\u7684PHP\u6587\u4ef6\u4e2d\u6267\u884c\u3002<\/p>\n<p>\u8fd9\u6837\u4e00\u6765\uff0c\u6211\u4eec\u5c31\u80fd\u591f\u521b\u5efa\u4e00\u4e2a\u7c7b\u4f3c\u4e8e\u5165\u53e3\u70b9\u7684\u4e1c\u897f\uff0c\u4ece\u800c\u80fd\u591f\u7f16\u5199\u6240\u6709\u5728\u7f51\u7edc\uff08Apache\uff09\u4e0a\u7684php\u9875\u9762\u4e2d\u5171\u540c\u7684\u521d\u59cb\u5316\u5904\u7406\u7b49\u3002\u4e0d\u8fc7\uff0c\u8fd9\u6837\u505a\u53ef\u80fd\u4f1a\u53d8\u5f97\u73af\u5883\u4f9d\u8d56\u6027\u8f83\u9ad8\uff0c\u4e14\u7ba1\u7406\u8d77\u6765\u4f1a\u6bd4\u8f83\u7e41\u7410\u3002\u4e0e\u5176\u8bf4\u5982\u6b64\uff0c\u6211\u8ba4\u4e3a\u5230\u4e86\u8fd9\u4e00\u6b65\uff0c\u4e00\u822c\u90fd\u4f1a\u4f7f\u7528\u7f51\u7edc\u6846\u67b6\u4e4b\u7c7b\u7684\u5de5\u5177\u3002<\/p>\n<p>\u53c2\u8003\u7f51\u7ad9<br \/>\n&#8211; \u4f7f\u7528auto_prepend_file\u548cauto_append_file\u6307\u4ee4\u6765\u81ea\u52a8\u52a0\u8f7d\u6587\u4ef6<br \/>\n&#8211; \u5728apache\u914d\u7f6e\u6587\u4ef6\u4e2d\u8bbe\u7f6eauto_prepend_file\u548cauto_append_file\u7684\u65b9\u5f0f<br \/>\n&#8211; \u4f7f\u7528auto_prepend_file\u6765\u5206\u914dPHP\u5165\u53e3\u70b9\u7684\u804c\u8d23<br \/>\n&#8211; \u5982\u4f55\u67e5\u627ePHP\u5165\u53e3\u70b9<\/p>\n<h5>PHP\u9519\u8bef\u76f8\u5173\uff0cPHP\u6ce8\u610f\uff1aPHP\u8b66\u544a\uff1aPHP\u81f4\u547d\u9519\u8bef\uff1a<\/h5>\n<p>PHP \u6ce8\u610f\uff1a\u6ce8\u610f<br \/>\nPHP \u8b66\u544a\uff1a\u8b66\u544a<br \/>\nPHP \u81f4\u547d\u9519\u8bef\uff1a\u9519\u8bef<\/p>\n<p>PHP\u9519\u8bef\u3001\u8b66\u544a\u548c\u6ce8\u610f\u4e4b\u95f4\u6709\u4f55\u533a\u522b\uff1f<\/p>\n<p>\u5982\u679c\u53d1\u751f\u8b66\u544a\u6216\u9519\u8bef\uff0c\u5982\u679c\u60f3\u5728\u6d4f\u89c8\u5668\u4e0a\u663e\u793a\u9519\u8bef\u5185\u5bb9\uff0c\u9700\u8981\u5c06php.ini\u6587\u4ef6\u4e2d\u7684display_errors\u4eceOff\u66f4\u6539\u4e3aOn\u3002\u5982\u679c\u4e3aOff\uff0c\u5219\u4ec5\u4f1a\u663e\u793a\u5728\u65e5\u5fd7\u6587\u4ef6\/var\/log\/httpd\/error_log\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"py\">display_errors<\/span> <span class=\"p\">=<\/span> <span class=\"s\">On<\/span>\r\n<\/code><\/pre>\n<h5>\u83b7\u53d6\u4e3b\u673a\u81ea\u8eab\uff08\u8fd0\u884cPHP\u7684\u670d\u52a1\u5668\uff09\u7684\u5168\u5c40IP\u5730\u5740\u3002<\/h5>\n<p>\u8fd9\u662f\u8fd0\u884cPHP\u7684\u670d\u52a1\u5668\u7684\u5168\u5c40IP\u5730\u5740\uff0c\u6211\u4ee5\u4e3a\u53ef\u4ee5\u7528$_SERVER\u53d8\u91cf\u6765\u83b7\u53d6\uff0c\u4f46\u5728\u6211\u7684\u73af\u5883\u4e2d\u5374\u627e\u4e0d\u5230\u3002\u5982\u679c\u662f\u79c1\u6709IP\uff0c\u5219\u53ef\u4ee5\u901a\u8fc7$_SERVER[&#8216;SERVER_ADDR&#8217;]\u6765\u83b7\u53d6\u3002<br 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