20 Task 17 The Administrator Modifies Member InformationPHP动态网站开发项目教程课件

Project1MemberManagementSystemSchoolofSoftware,ChengduPolytechnicLecturer:MuQichunTask17TheAdministratorModifiesMemberInformationPrincipleofModifyingMemberInformationAmembercanmodifyhispersonalprofileafterlogin.Theadministratorcanmodifytheinformationofallusersafterlogin.Wehavecompletedthemodificationofpersonalprofileaftermemberlogin.Thisisverysimilartothemodificationofmemberinformationbytheadministrator,therefore,wedirectlymodifyinthemodify.php.Originally,theinformationtobemodifiedisobtainedinthemodify.phpbysession.Now,onlyausernameisadditionallypassedtomodify.Firstly,modifyadmin.php，andaddalinkof“Modifyinformation”intheoperationbar.Themaincodeoftheadmin.phpfileisgivenasbelow:RelevantCodeRelevantCodeRelevantCodeInLine77,linktothemodify.phpfile,andpasstheparameterID=4,whichisusedtodisplaythecurrentcolumn.Then,passtheparameterusername,whichisusedtoscreentherecordsinthedatatableinthemodify.phppage.Then,openthemodify.phpfile.Inthisfile,weshouldfirstunderstandalogicalproblem.Inthemodify.phpfile,wefirstdeterminewhethertheuserhastheloginpermission.Thenthesubsequentuserinformationismodifiedbythesession.Now,theadministratormodifiestheuserinformationbytheusernamepassedintheaddressbar.Originally,whenmodifyingthepersonalprofile,onlyverificationisconductedtodeterminewhethertologin.Butnow,whenmodifyingtheinformationofotherusers,theadministratorloginmustbeverified.Otherwise,oncetheordinaryusersknowthewayofmodifyinginformation,theycanenterothers’usernamesintheaddressbaratwill,therebymodifyingtheinformationofotherusersbeyondtheirauthority.Thecompletecodeofthemodify.phpfileisgivenbelow:RelevantCodeRelevantCodeRelevantCodeRelevantCodeConclusionThislectureintroducesthemethodofmodifyingmemberinformation.Theoriginalfilecanbequicklyreusedbypassingaparameterusernametothemodify.phpfile,soastocompletefunctionmaking.Meanwhile,byvirtueofthefront-endknowledge,thefunctionofchangingthebackg