php中的登陆login,php登陆login
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<?<span>php </span><span>require</span> "../include/DBClass.php"<span>; </span><span>$username</span>=<span>$_POST</span>['UserName'<span>]; </span><span>$password</span>=<span>$_POST</span>['Password'<span>]; </span><span>if</span>(<span>empty</span>(<span>$username</span>) || <span>empty</span>(<span>$password</span><span>)){ Go_Msg(</span>"请填写用户名,密码!","../default.html"<span>); </span><span>exit</span><span>; } DBConn(); </span><span>$password</span>=<span>md5</span>(<span>$password</span><span>); </span><span>$SQL</span> = "Select UserName,UserType,UserPass From siteuser where UserName='" . <span>$username</span> ."' and UserPass='" . <span>$password</span> . "' and isopen=1"<span>; </span><span>//</span><span>echo "$SQL"; </span> <span>$result</span> = <span>$db</span> -> exec_SQL(<span>$SQL</span><span>); </span><span>$total</span>=<span>mysql_num_rows</span>(<span>$result</span><span>); </span><span>if</span>(<span>$total</span>==0<span>){ DBClose(); Go_Msg(</span>"注册用户还没有通过管理员审核或用户名及密码不符!请重新输入!","../default.html"<span>); </span><span>exit</span><span>; }</span><span>else</span><span>{ </span><span>$Rs</span> = <span>$db</span> -> fetch_array(<span>$result</span><span>); </span><span>//</span><span>附值,并登录 </span> <span>session_register</span>("username"<span>); </span><span>session_register</span>("usertype"<span>); </span><span>$_SESSION</span>["usertype"]=<span>$Rs</span>['UserType'<span>]; </span><span>$_SESSION</span>["username"]=<span>$username</span><span>; </span><span>//</span><span>echo $_SESSION["username"]; </span> <span>if</span> (<span>$_SESSION</span>["usertype"]==1<span>){ Go_Msg(</span>"登陆成功!","default.php"<span>); </span><span>//</span><span>header('Location:http://163.com'); </span> <span> } </span><span>if</span> (<span>$_SESSION</span>["usertype"]==2<span>){ Go_Msg(</span>"登陆成功!","../user2/default_1.php"<span>); } </span><span>if</span> (<span>$_SESSION</span>["usertype"]==3<span>){ Go_Msg(</span>"登陆成功!","../user3/default_2.php"<span>); } </span><span>//</span><span> header('Location:default.php'); </span> <span> } DBClose(); </span><span>//</span><span> 何问起 hovertree.com</span> ?>
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DependencyInjection(DI)inPHPenhancescodeflexibilityandtestabilitybydecouplingdependencycreationfromusage.ToimplementDIeffectively:1)UseDIcontainersjudiciouslytoavoidover-engineering.2)Avoidconstructoroverloadbylimitingdependenciestothreeorfour.3)Adhe

到Improveyourphpwebsite的实力,UsEthestertate:1)emplastOpCodeCachingWithOpcachetCachetOspeedUpScriptInterpretation.2)优化的atabasequesquesquesquelies berselectingOnlynlynnellynnessaryfields.3)usecachingsystemssslikeremememememcachedisemcachedtoredtoredtoredsatabaseloadch.4)

是的,itispossibletosendMassemailswithp.1)uselibrarieslikeLikePhpMailerorSwiftMailerForeffitedEmailSending.2)enasledeLaysBetemailStoavoidSpamflagssspamflags.3)sylectynamicContentToimpovereveragement.4)

DependencyInjection(DI)inPHPisadesignpatternthatachievesInversionofControl(IoC)byallowingdependenciestobeinjectedintoclasses,enhancingmodularity,testability,andflexibility.DIdecouplesclassesfromspecificimplementations,makingcodemoremanageableandadapt

使用PHP发送电子邮件的最佳方法包括:1.使用PHP的mail()函数进行基本发送;2.使用PHPMailer库发送更复杂的HTML邮件;3.使用SendGrid等事务性邮件服务提高可靠性和分析能力。通过这些方法,可以确保邮件不仅到达收件箱,还能吸引收件人。

计算PHP多维数组的元素总数可以使用递归或迭代方法。1.递归方法通过遍历数组并递归处理嵌套数组来计数。2.迭代方法使用栈来模拟递归,避免深度问题。3.array_walk_recursive函数也能实现,但需手动计数。

在PHP中,do-while循环的特点是保证循环体至少执行一次,然后再根据条件决定是否继续循环。1)它在条件检查之前执行循环体,适合需要确保操作至少执行一次的场景,如用户输入验证和菜单系统。2)然而,do-while循环的语法可能导致新手困惑,且可能增加不必要的性能开销。

在PHP中高效地哈希字符串可以使用以下方法:1.使用md5函数进行快速哈希,但不适合密码存储。2.使用sha256函数提高安全性。3.使用password_hash函数处理密码,提供最高安全性和便捷性。


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