19 Task 16 Administrator Deletes UsersPHP动态网站开发项目教程课件

Project1MemberManagementSystemSchoolofSoftware,ChengduPolytechnicLecturer:MuQichunTask16AdministratorDeletesUsersRealizationofDeletionFunctionTheadministratorcandeletetheusers,butcannotdeletehimself.Thedeletionoperationisirreversibleduetotheparticularityofthedeletionfunction，sosecondaryconfirmationisnecessarywhendeleting.Generally,itcanberealizedbythemethodConfirminjs.Usethekeyword“delete”whendeleting.Payattentiontoadd“where”toscreen,toavoidthatthewholedatatableisdeletedwrongly.Next,modify“Deletemember”intheoperationcolumnofadmin.php,andaddthelink,withthecodeasbelow:RelevantCodeThisseemsalittlemorecomplicated,andthekeyistomixPHPandHTML.Meanwhile,thecodehereisslightlydifferentfromthatinthepreviouslecture,withthepurposeoflearningdifferentcodes.Forexample,inLine1,“<>”referstobeingnotequalto,whichhasthesamemeaningas“!=”inthepreviouslecture.InLine4,outputanHTMLcodedirectlybyecho.InLine2,addaJavaScriptfunction“del”tothetag“a”,andpassthetwoparameters,i.e.,userIDandusername.PerformtheJavaScriptmethod“del”byclickingthislink.Thecodeofthemethod“del”isgivenbelow:RelevantCodeUse“Confirm”topopupthemessage,andpasstheusernameinthepopupmessageforuser’sconfirmation.Onceconfirmed,jumptodel.phpfile,andcarryparametersIDandusername.Createadel.phpfile,withthecodeasbelow:ConclusionThislectureintroduceshowtodeletethemember.Whendeletingthemember,thefunction“Confirmdeletion”ismadebyjs,andtheparametersIDandusernamearepassedto