18 Task 15 Setting or Canceling AdministratorPHP动态网站开发项目教程课件

Project1MemberManagementSystemSchoolofSoftware,ChengduPolytechnicLecturer:MuQichunTask15SettingorCancelingAdministratorParameterPassinginAddressBarTheadministratorsarepresentedinthecolumn“admin”ofthedatatable.Ifthevalueis1,itindicatesthattheadministratorlogsin;ifthevalueis0,itindicatestheordinarymemberlogsin.Userswithdirectsignupareordinarymembers.Normally,wepresetanadministratorinthedatabase(becausetheadministratorcannotautomaticallysignup),forexample,theuserwithadminastheusernameisthepresetadministrator.Tofacilitatemanagement,someotheradministratorsarerequired.Therefore,thefunctionsofsettingandcancelingadministratorarepresented.Whentheadministratorviewsthememberlist,“Canceltheadministrator”appearsifthecurrentuseristheadministrator.“Settheadministrator”appearsifthecurrentuserisnottheadministrator.Whencancelingtheadministrator,thepresetadministrator“admin”cannotbecanceled.Whensettingorcancelingtheadministrator,passingofparametersbetweenpagesisused,whichisusedwhenmakingnavigationbar.Thekeytechnologytosetorcanceltheadministratoristoupdatetherecordsinthedatatablewiththekeyword“update”.First,modifythecontentofthecolumn“Operate”inadmin.php.ParameterPassinginAddressBarAddajudgmentcondition.If$info['admin']istrue,display“Canceltheadministrator”withlink,otherwisedisplay“Settheadministrator”withlink.ThetargetfileofthelinkissetAdmin.php,withtwoparametersbehind.Thefirstparameterisaction,withavalueof0or1.Where0referstocancelingtheadministrator,and1referstosettingtheadministrator.ThesecondparameterisuserID,i.e.,currentuserIDtobeset.ImplementcorrespondingoperationswiththetwoparametersinthesetAdmin.phppage.RelevantCodeCreateasetAdmin.phpfile,withthecodeasbelow:RelevantCodeThefunctionsofsettingorcancelingtheadministratorhavebeencompletedinthepresentprogram,butthereisstillaprogram,i.e.,whencancelingtheadministrator,thepresetadministrator,whichisthedefaultadministratorwithadminasitsusernameinourdatabase,cannotbecanceled.Inourdatabase.Soajudgmentconditionshouldbeaddedintheprogram.Specifically,determinetheusernameofthecurrentrowofdata.Iftheusernameisnotadmin,displaythepresentcontents.Whentheusernameisadmin,agray“Canceltheadministrator”withlinkappears,withthecodeasbelow:RunningEffectConclusionThislectureintroduceshowtosetorcanceltheadm