php - Time Limit On Page -

-

i run online gaming website , trying stop users being able reload page on , on again. thought way add timestamp variable url , if users presses try again, update timestamp.

i trying make if timestamp within 5 minutes script allow them access, if timestamp in url outside 5 minute limit, script die , produce error. have searched , found ideas have implemented, still able use same url after 30 minutes. urls ends this: id players id number , t unix timestamp

mug.php?id=186&t=1368036608

this have in code in order try put in place , hope clear enough on trying do. timestamp in url not update upon refresh, timestamps point press mug button, believe right.

include "globals.php"; $_get['id'] = isset($_get['id']) && is_numeric($_get['id']) ? abs(@intval($_get['id'])) : false; $_get['t'] = isset($_get['t']) && is_numeric($_get['t']) ? abs(@intval($_get['t'])) : false;  $time = time(); $time2 = $_get['t']; $futuretime = $time2+(60*5);  if($futuretime < $time2) { print "session expired. please go profile page , press mug button again. "; die(); }

you should hold timestamp in session not in url can altered. maybe better:

if (!session_id()) {     session_start(); }  $currenttimestamp = $_server['request_time']; $allowtimeframe = 300; $nexttimestamp = $currenttimestamp + $allowtimeframe; $timestamp = isset($_session['ac_timestamp']) ? $_session['ac_timestamp'] : 0;  if ($currenttimestamp < $timestamp) {    exit('please not refresh page within ' . ($allowtimeframe/60) .' minutes'); }  $_session['ac_timestamp'] = $nexttimestamp;

Comments

Post a Comment

Popular posts from this blog

java - Jmockit String final length method mocking Issue -

-
using jmockit 1.2 jar, trying mock string's length method getting unexpected invocation exception: failed: test java.lang.illegalstateexception: missing invocation mocked type @ point; please make sure such invocations appear after declaration of suitable mock field or parameter @ stringdemo.testa$1.<init>(testa.java:17) @ stringdemo.testa.test(testa.java:13) i using testng: @test public void test() throws exception { new expectations() { @mocked("length") string astring; { astring.length(); result = 2; } }; system.out.println(a.showa("test")); } } actual class a: public class { public static int showa(string str){ int a= str.length(); return a; } } this wrong way of recording expected results. shouldn't mock , record string's length() method, record showa() instead. here solution @suppresswarnings("unused...
Read more

What is the difference between data design and data model(ERD) -

-
i have google question , find answer in day. know, data design many many table have list column,and mark pk , fk. why er-diagram have find this? data design process of designing database. main output of data design detailed logical data model of database. some people data design includes of needed logical , physical design choices , physical storage parameters needed generate design in data definition language. technically, database analysis, database analysts (dbas) trained do. while person can both data design , database analysis, these 2 different tasks. data design models data. database analysis takes model , applies 1 or more database engines (relational, hierarchical, nosql). a logical data model 1 of main outputs of data design. data model represented entity relationship diagram, or er diagram.
Read more

ios - Can NSManagedObject conform to NSCoding -

-
i need transfer single object across device. right converting nsmanagedobject dictionary , archiving , sending nsdata. upon receiving unarchiving it. transfer nsmanagedobject archiving , unarchiving instead of creating intermediate data object. @interface test : nsmanagedobject<nscoding> @property (nonatomic, retain) nsstring * title; @end @implementation test @dynamic title; - (id)initwithcoder:(nscoder *)coder { self = [super init]; if (self) { self.title = [coder decodeobjectforkey:@"title"]; //<crash } return self; } - (void)encodewithcoder:(nscoder *)coder { [coder encodeobject:self.title forkey:@"title"]; } @end nsdata *archivedobjects = [nskeyedarchiver archiveddatawithrootobject:testobj]; nsdata *objectsdata = archivedobjects; if ([objectsdata length] > 0) { nsarray *objects = [nskeyedunarchiver unarchiveobjectwithdata:objectsdata]; } the problem above code is. crashes @ self.title in initwithcoder sa...
Read more