WEBVTT 00:00.500 --> 00:03.320 I will carry you back again to another video lecture in PHP. 00:03.470 --> 00:09.140 And in this video lecture I warhead and tissue about object functions in PHP. 00:16.070 --> 00:16.550 All right. 00:16.550 --> 00:19.400 So in PHP we have what's called object functions. 00:19.400 --> 00:24.860 And these are functions that are used by objects to perform some specific tasks. 00:25.250 --> 00:28.430 In PHP now we have this value function which we create. 00:28.430 --> 00:30.170 Here is a constructor function. 00:30.170 --> 00:33.590 And the object function is go ahead and go down here. 00:33.590 --> 00:39.200 So we have learnt about classes and objects and we have done something num constructions. 00:39.230 --> 00:41.300 Then let's go ahead and look at object functions. 00:41.300 --> 00:44.210 So go right in here and create a function. 00:44.210 --> 00:51.290 And what is this function to determine about this car here to know a car is updated. 00:51.290 --> 00:59.090 So any car that is above 2 or 2000 or which is updated above 2000 is still current, but any car that 00:59.120 --> 01:01.710 is characters below 2000 is outdated. 01:01.710 --> 01:07.050 So I will first of all change the genes in the son to be like a 1997 model. 01:07.050 --> 01:12.420 So if you are driving 1997 model, that means you are driving an outdated car. 01:12.840 --> 01:17.160 All right, so this function, we have to determine which of the cars that is outdated. 01:17.280 --> 01:21.000 If it is updated it's going to be true or false. 01:21.000 --> 01:23.670 Let's go ahead and determine that it's here. 01:23.700 --> 01:24.810 This function is done. 01:24.810 --> 01:27.060 Go ahead and say outdated. 01:27.810 --> 01:34.170 So it does try to use this function to check the current cars and the the the test cars. 01:34.200 --> 01:36.810 That is the aim of this program. 01:36.840 --> 01:45.870 Now let's go ahead and create this function because we have to learn how to use this functions to work 01:45.870 --> 01:46.950 with our objects. 01:46.950 --> 01:52.320 That's why object functions are very important to learn, because it doesn't stop in creating constructors 01:52.320 --> 01:53.340 and classes. 01:53.340 --> 01:56.100 You also going to add some things and use that. 01:56.100 --> 01:57.910 So the more you create more functions. 01:57.910 --> 01:59.290 Here you're creating objects. 01:59.590 --> 02:00.430 Functions. 02:00.460 --> 02:03.700 Now let's go ahead and see if. 02:04.240 --> 02:10.420 And then you go ahead and specify the current object you're talking about. 02:10.420 --> 02:11.710 So if this. 02:11.710 --> 02:14.350 So let me go ahead and remove one of these. 02:14.350 --> 02:19.990 So if this and we're going to use the E the variable we're going to talk about is the e. 02:19.990 --> 02:31.540 So if this year and that is very important it's a equal or that is greater than or equal to then go 02:31.540 --> 02:34.210 ahead and shift this because everything is together. 02:34.240 --> 02:37.060 Now let's go ahead and say is equal to 2000. 02:37.060 --> 02:39.670 So any one of these are from 2000 and above. 02:39.700 --> 02:41.890 That's why I included 2000 okay. 02:41.890 --> 02:52.720 So if this is the year is greater than or equal to 2000 then is correct and return false. 02:52.720 --> 03:03.140 So that's any correct is above 2000 is not updated, but if the car is a below 2000, it will go above 03:03.140 --> 03:05.270 and I go ahead and return. 03:05.480 --> 03:10.280 True because we are more interested in outdated and not outdated. 03:10.310 --> 03:19.070 Now if we go ahead and use this return false and a true this abhorrence and there might be an error 03:19.100 --> 03:25.550 because sometimes the boolean you would return false when it is true. 03:25.550 --> 03:27.050 So let's go ahead and make this. 03:27.050 --> 03:28.070 So don't confuse. 03:28.070 --> 03:30.920 And let's go ahead and make this to be string. 03:30.950 --> 03:37.460 Let's go ahead I use string here instead of using the uh the boolean just the way it is. 03:37.490 --> 03:39.050 Go ahead and set true. 03:39.560 --> 03:41.270 Now let's go ahead and save this. 03:41.270 --> 03:50.150 And uh, if we go ahead and go over here and go down to eco, we want to check which of these is, uh, 03:51.140 --> 03:54.240 outdated and war that is not US debt. 03:54.270 --> 03:59.790 Now go ahead and replace the E with the function name outdated. 03:59.790 --> 04:03.180 So we're calling the function outdated now. 04:03.210 --> 04:05.910 And let's go ahead and refresh this and check this out. 04:05.940 --> 04:10.620 And it says unexpected token in line 21. 04:10.620 --> 04:13.500 So that is what we have right here. 04:13.500 --> 04:15.060 So go ahead and put this back. 04:15.090 --> 04:16.710 This is a greater than or equal. 04:16.740 --> 04:17.910 This is what it's supposed to be. 04:17.940 --> 04:20.430 Go ahead and save this and check it out. 04:20.430 --> 04:25.350 So with the one we are checking is false because Q1 is 2030. 04:25.350 --> 04:27.810 So that is still a current car. 04:27.810 --> 04:34.470 And if we go ahead and change this to car two and change this to Cat two and go ahead and refresh this, 04:34.500 --> 04:39.180 you can see that is true because Q2 is 1997. 04:39.180 --> 04:45.000 So we need to go ahead and change this car two to like a 2051 and save. 04:45.000 --> 04:45.840 These are the fresh. 04:45.870 --> 04:46.590 Let's check it out. 04:46.590 --> 04:47.580 That is false. 04:47.580 --> 04:48.600 So you can see that. 04:48.630 --> 04:57.160 So object function helps us to be able to add some functions into our classes and it will help us to, 04:57.580 --> 05:01.240 you know, to implement some specific tasks on the object. 05:01.240 --> 05:03.760 And you can see that I created this function once. 05:03.760 --> 05:06.700 And where would two use that on both of these. 05:06.700 --> 05:13.210 Because whenever you create a function inside here it's a it's going to be implemented into the object 05:13.210 --> 05:14.110 of that class. 05:14.110 --> 05:17.260 Because both of these objects are the objects of the class. 05:17.260 --> 05:21.430 Cutter, you understand, is both of the object and the object of the class car. 05:21.460 --> 05:26.320 So if we create more and more of this object, and eventually you create your application to add objects 05:26.320 --> 05:28.780 of that particular class you're working with. 05:28.780 --> 05:34.600 So and now anytime you check true or false, either one of them, it will go ahead and give you the 05:34.600 --> 05:35.170 output. 05:35.170 --> 05:39.220 So this is about construct a object functions in PHP. 05:39.250 --> 05:41.530 Go ahead and check more on that. 05:41.530 --> 05:44.980 And if you have any question go ahead and use the question and answer section. 05:44.980 --> 05:47.560 And I'm going to get back to you as soon as possible. 05:47.590 --> 05:48.460 Thank you so much. 05:48.490 --> 05:51.310 And I'm going to see you in the next video lecture.