WEBVTT 00:00.680 --> 00:04.040 I will call you back again to another video lecture in PHP. 00:04.190 --> 00:09.500 And in this lecture we go ahead and look at data types in PHP. 00:16.400 --> 00:19.850 So in the previous lecture we are able to look at variables. 00:19.850 --> 00:26.240 And during the time we are treating variables we talked about strings and we talked about integers. 00:26.240 --> 00:30.890 We didn't go deep into them because we have not discussed about data types. 00:30.920 --> 00:34.190 So what are data types in PHP? 00:35.300 --> 00:38.750 In PHP we are going to specify ten. 00:38.750 --> 00:43.100 In PHP that we are going to use certain uh informations. 00:43.100 --> 00:50.630 And these informations are either stored as strings or integers or fluids or a boolean. 00:50.840 --> 00:53.990 So let's go ahead and look at strings. 00:55.010 --> 00:55.940 Let's go ahead and see. 00:55.940 --> 00:57.410 This is a string. 00:57.410 --> 01:05.510 And uh this string I just wrote right in here we are going to pass this string into a variable, and 01:05.510 --> 01:11.210 then we use double quotation mark to actually say that this is a string. 01:11.210 --> 01:14.630 So whatever is inside double quotation mark is a string. 01:14.630 --> 01:16.220 So I'll go ahead and delete this. 01:16.220 --> 01:18.410 And I'm going to create a variable. 01:18.410 --> 01:24.470 And I'm going to say this is a my string. 01:24.530 --> 01:25.850 Remember this is a variable. 01:25.850 --> 01:27.470 So you can name it anything. 01:27.470 --> 01:28.970 So I just say my string. 01:29.000 --> 01:29.570 Okay. 01:29.600 --> 01:35.900 Now I will go ahead and put a double quotation mark or I'll go ahead and use single quotation mark. 01:35.900 --> 01:43.220 Because when I is a string, the string will either be either in a double quotation mark or a single 01:43.220 --> 01:44.150 quotation mark. 01:44.180 --> 01:46.490 Let's go ahead and start with single quotation mark. 01:46.490 --> 01:51.620 And I'm going to say this is a welcome to PHP. 01:51.650 --> 01:58.670 Then put a semicolon at the end and then we'll go ahead and encode this. 01:58.670 --> 02:00.080 So let's go ahead and echo this. 02:00.080 --> 02:07.760 And I'm going to just say echo my string and put a semicolon at the end. 02:07.760 --> 02:10.370 And then let's go ahead and run this and check it out. 02:10.400 --> 02:18.800 We come to FB so you can see that string can either be in a double quotation mark or a single quotation 02:18.800 --> 02:19.220 mark. 02:19.220 --> 02:24.800 So when we've discussed about variables we put everything inside double quotation mark. 02:24.800 --> 02:27.200 But now I've just made that to be a single quotation mark. 02:27.200 --> 02:32.510 So it is either a double quotation mark or it is either in single quotation mark. 02:32.870 --> 02:36.260 Now the next one we're going to talk about is integers. 02:36.290 --> 02:38.180 Integers are just numbers. 02:38.180 --> 02:41.900 You can either use any number a whole number. 02:41.900 --> 02:47.000 So one of whenever we talk about whole numbers we talk about integers. 02:47.090 --> 02:47.750 All right. 02:47.780 --> 02:49.460 Now let me go ahead and create this. 02:49.460 --> 02:51.470 And I'm going to see my gnome. 02:51.470 --> 02:56.000 So the variable name is just my gnome okay. 02:56.030 --> 03:02.120 And now once you want if you want to write an integer is going to be just a whole number. 03:02.150 --> 03:02.780 All right. 03:02.780 --> 03:06.170 And let's go ahead and equal this out. 03:06.830 --> 03:12.560 So my my gnome All right. 03:12.560 --> 03:19.430 And we have to write a code and then put a semicolon at the end and run this. 03:19.460 --> 03:22.970 And you can see we have this 60. 03:23.390 --> 03:26.930 Uh, this is a 67. 03:27.170 --> 03:27.740 All right. 03:27.770 --> 03:30.170 Now I want this to move to the next line. 03:30.170 --> 03:44.870 You can actually go right in here and, uh, put a code and then brick because we are using HTML right 03:44.870 --> 03:45.110 here. 03:45.140 --> 03:46.490 Now let's go ahead and run this. 03:46.520 --> 03:48.740 You can see that this has moved to the next line. 03:48.740 --> 03:54.590 So you can place this in uh, maybe inside this my string or you put that inside here. 03:54.740 --> 03:55.310 All right. 03:55.310 --> 03:57.380 So I don't want this to be equal everywhere. 03:57.380 --> 03:58.670 I'll go ahead and copy this. 03:58.670 --> 04:00.560 I'll go ahead and delete this. 04:00.680 --> 04:01.280 All right. 04:01.310 --> 04:05.030 Now I have my string and I'm going to put this here. 04:05.060 --> 04:07.310 Now, if I run this code, I'm going to. 04:07.550 --> 04:09.620 Oh I got an error right in here. 04:09.650 --> 04:12.410 So that is equal my string. 04:12.410 --> 04:18.810 So what I need to do is that I have to place this right inside this double quotation mark. 04:18.810 --> 04:20.070 So let me go ahead and take everything out. 04:20.070 --> 04:20.970 Quotes right inside. 04:21.000 --> 04:24.270 Double quotation mark now. 04:26.670 --> 04:28.710 Oh I'm having this problem. 04:28.740 --> 04:29.250 Okay. 04:29.280 --> 04:33.870 Now I put everything right inside the double quotation mark and I'll go ahead and run my code again. 04:33.900 --> 04:34.950 Welcome to PHP. 04:35.070 --> 04:42.330 And you can see the line break is already here and it has moved to the next line 6 to 7. 04:42.660 --> 04:45.300 So now we have our integer. 04:45.330 --> 04:48.900 I'll have to bring the next one is a decimal numbers. 04:49.170 --> 04:53.790 So decimal numbers are different from whole numbers. 04:53.790 --> 04:59.880 So if you go ahead and say dollar sign my. 05:02.430 --> 05:03.660 My decimal. 05:03.660 --> 05:09.720 So let's go ahead and say this is equal to 67.03 semicolon at the end. 05:09.840 --> 05:16.950 Now PHP actually knows that 67 is quite different from 67.0. 05:18.060 --> 05:22.530 So 67 Seven is quite different from 67.0. 05:22.560 --> 05:26.430 The first one is an integer, while the second one is a float. 05:26.460 --> 05:31.800 All right, this is my decimal and not NY. 05:31.830 --> 05:35.730 So you can actually go ahead and practice with these. 05:35.760 --> 05:40.440 So the first one here is called a an integer right. 05:40.440 --> 05:43.470 And last one is called a float number. 05:43.590 --> 05:45.720 So the next one is boolean. 05:45.900 --> 05:48.210 Let's go ahead and say we have a. 05:48.240 --> 05:50.490 This code is my bull. 05:50.490 --> 05:52.230 So we can call this my boolean. 05:53.190 --> 05:53.700 All right. 05:53.700 --> 05:56.460 So this is equal to true or false. 05:56.550 --> 06:03.240 It is either it is true or it is either a false. 06:03.630 --> 06:04.140 All right. 06:04.140 --> 06:08.490 So it is either true or it is either a false. 06:09.210 --> 06:09.600 Okay. 06:09.630 --> 06:17.430 So whenever we are going to use this we're going to always let you know when and when to use it in the 06:17.430 --> 06:17.880 program. 06:17.880 --> 06:22.620 So as we move into PHP we're going to make use of all these data types. 06:22.620 --> 06:28.980 Because whenever you are writing PHP code, you're always going to use data types to actually make your 06:28.980 --> 06:31.230 code to be manageable. 06:31.500 --> 06:34.950 All right, now that's all PHP actually outputs. 06:34.950 --> 06:36.780 And that is called null. 06:36.810 --> 06:37.230 All right. 06:37.260 --> 06:41.370 So null is actually there for you to send no value. 06:41.400 --> 06:43.620 No means no value. 06:44.340 --> 06:44.760 All right. 06:44.910 --> 06:46.470 So I hope you understand this. 06:46.470 --> 06:48.180 No means no value. 06:48.210 --> 06:48.780 All right. 06:48.780 --> 06:54.450 These things are these are going to use to make our code to be functional. 06:54.450 --> 06:57.150 It helps us to write code that are functional. 06:57.150 --> 06:58.890 So you always use strings. 06:58.890 --> 07:00.720 You always use data types. 07:00.720 --> 07:05.310 And the data types are going to use a string. 07:05.340 --> 07:10.470 Integers or decimal numbers Boolean and so on. 07:10.680 --> 07:14.280 So this is just an introduction to data types. 07:14.310 --> 07:15.540 I'll move into the course. 07:15.570 --> 07:17.070 We're going to discuss more on that. 07:17.070 --> 07:21.300 And if you have any questions please go ahead and use the questions section. 07:21.300 --> 07:23.760 And I'm going to get back to you as soon as possible. 07:23.790 --> 07:24.780 Thank you so much. 07:24.780 --> 07:28.230 And I'm going to see you in the next video lecture.