{"id":431,"title":"php\u53d8\u91cf\u7684\u4f5c\u7528\u57df","good":0,"bad":0,"hit":2019,"created_at":"2019-04-07 21:31:39","content":"<pre class=\"brush:php;toolbar:false\">&lt;?php\n\/**\n&nbsp;*&nbsp;Created&nbsp;by&nbsp;PhpStorm.\n&nbsp;*&nbsp;User:&nbsp;www.hu-rong.com\n&nbsp;*&nbsp;Date:&nbsp;2019\/4\/7\n&nbsp;*&nbsp;Time:&nbsp;21:18\n&nbsp;*\/\n$var1=5;\n$var2=10;\nfunction&nbsp;foo(&amp;$my_var){\n&nbsp;&nbsp;&nbsp;&nbsp;static&nbsp;$c=0;\/\/\u9759\u6001\u53d8\u91cf\uff0c\u53ea\u6709\u7b2c\u4e00\u6b21\u88ab\u521d\u59cb\u5316\uff0c\u8c03\u7528\u7ed3\u675f\u540e\u503c\u4e0d\u6d88\u5931\n&nbsp;&nbsp;&nbsp;&nbsp;global&nbsp;$var1;\/\/\u5c06\u5168\u90e8\u53d8\u91cf\u62ff\u8fdb\u6765\u4f7f\u7528\uff0c\u5176\u5b83\u6539\u53d8\u65f6\u5916\u90e8\u7684\u503c\u4e5f\u6539\u53d8\n&nbsp;&nbsp;&nbsp;&nbsp;$var1+=2;\/\/\u5c40\u90e8\u53d8\u91cf\uff0c\u53ea\u5728\u51fd\u6570\u5185\u90e8\u8d77\u4f5c\u7528\n&nbsp;&nbsp;&nbsp;&nbsp;$var2=4;\/\/\u540c\u4e0a\n&nbsp;&nbsp;&nbsp;&nbsp;$my_var+=3;\/\/\u5f15\u7528\u4f20\u9012\u7684\u53d8\u91cf\uff0c\u5176\u503c\u7684\u53d8\u5316\u4f1a\u4f20\u9012\u5230\u5916\u90e8\n&nbsp;&nbsp;&nbsp;&nbsp;++$c;\n&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;&quot;c=$c\\n&quot;;\n&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;$var2;\n}\n$my_var=5;\necho&nbsp;foo($my_var).&quot;\\n&quot;;\necho&nbsp;$my_var.&quot;\\n&quot;;\necho&nbsp;$var1.&quot;\\n&quot;;\necho&nbsp;$var2.&quot;\\n&quot;;\n$var=&#39;foo&#39;;\n$my_var=10;\necho&nbsp;$var($my_var);\n\necho&nbsp;&#39;&lt;br\/&gt;&#39;;\n\n\n\n$my_var=5;\necho&nbsp;foo($my_var).&quot;\\n&quot;;\necho&nbsp;$my_var.&quot;\\n&quot;;\necho&nbsp;$var1.&quot;\\n&quot;;\necho&nbsp;$var2.&quot;\\n&quot;;\n$var=&#39;foo&#39;;\n$my_var=10;\necho&nbsp;$var($my_var);<\/pre><p><span style=\"font-family: &quot;Microsoft YaHei&quot;; font-size: medium;\">c=1 4 8 7 10 c=2 4<\/span><br\/><span style=\"font-family: &quot;Microsoft YaHei&quot;; font-size: medium;\">c=3 4 8 11 10 c=4 4<\/span><\/p>"}