php 随机数的产生、页面跳转、件读写、文件重命名、switch语句_php技巧

<?php <BR>num = rand(1,5); <BR>witch($num){ <BR>case 1: <BR>$fp1=fopen("f1.dat",'r'); <BR>$oname = fgets($fp1); <BR>$nname = date("YmdHis"); <br><br>rename($oname,$nname); <BR>fclose($fp1); <BR>unlink("f1.dat"); <BR>$fp1=fopen("f1.dat",'w'); <BR>fwrite($fp1,$nname<a style="color:transparent">本@文来源gao($daima.com搞@代@#码(网5</a><strong>搞gaodaima代码</strong>); <BR>fclose($fp1); <br><br>header("Location: ".$nname."/1.html"); <BR>exit; <BR>break; <BR>case 2: <BR>$fp2=fopen("f2.dat",'r'); <BR>$oname = fgets($fp2); <br><br>$nname = date("YmdHis"); <BR>rename($oname,$nname); <BR>fclose($fp2); <BR>unlink("f2.dat"); <BR>$fp2=fopen("f2.dat",'w'); <BR>fwrite <BR>($fp2,$nname); <BR>fclose($fp2); <BR>header("Location: ".$nname."/2.html"); <BR>exit; <BR>break; <BR>case 3: <BR>$fp3=fopen <BR>("f3.dat",'r'); <BR>$oname = fgets($fp3); <BR>$nname = date("YmdHis"); <BR>rename($oname,$nname); <BR>fclose($fp3); <BR>unlink <BR>("f3.dat"); <BR>$fp3=fopen("f3.dat",'w'); <BR>fwrite($fp3,$nname); <BR>fclose($fp3); <BR>header("Location: ".$nname."/3.html"); <br><br>exit; <BR>break; <BR>case 4: <BR>$fp4=fopen("f4.dat",'r'); <BR>$oname = fgets($fp4); <BR>$nname = date("YmdHis"); <BR>rename <BR>($oname,$nname); <BR>fclose($fp4); <BR>unlink("f4.dat"); <BR>$fp4=fopen("f4.dat",'w'); <BR>fwrite($fp4,$nname); <BR>fclose($fp4); <br><br>header("Location: ".$nname."/4.html"); <BR>exit; <BR>break; <BR>case 5: <BR>$fp5=fopen("f5.dat",'r'); <BR>$oname = fgets($fp5); <br><br>$nname = date("YmdHis"); <BR>rename($oname,$nname); <BR>fclose($fp5); <BR>unlink("f5.dat"); <BR>$fp5=fopen("f5.dat",'w'); <BR>fwrite <BR>($fp5,$nname); <BR>fclose($fp5); <BR>header("Location: ".$nname."/5.html"); <BR>exit; <BR>break; <BR>default: <BR>break; <BR>} <BR>?><BR>

刚做的一个项目中的部分代码，包含了php中随机数的产生、页面跳转、件读写、文件重命名、switch语句。
特发表出来，希望能对php学习者能够有所帮助。

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