WEBVTT 00:00.680 --> 00:06.440 I will call you back a day two ended up with a lecture in PHP, and in this video lecture we go ahead 00:06.440 --> 00:09.080 and look at associative array. 00:15.830 --> 00:19.580 All right so we've looked at arrays which is the number array. 00:19.580 --> 00:24.290 And we're looking at another array which is called an associative array. 00:24.320 --> 00:29.870 So an associative array means that we're going to deal with keys and values. 00:29.870 --> 00:35.990 So if I go ahead and put in D so can you understand what we're talking about. 00:35.990 --> 00:39.320 So in the previous arrays we discussed about players. 00:39.320 --> 00:42.560 So we're going to still maintain that same players right in here. 00:42.560 --> 00:46.130 So let's go ahead and put an underscore. 00:46.730 --> 00:52.910 Uh so let's go ahead and put in assign which is to create a variable. 00:52.910 --> 00:56.630 And let's scale and give a variable called goals. 00:56.660 --> 01:00.400 Determining how many goals each of these players AWS gave. 01:00.430 --> 01:03.490 Now this is equal to a ray. 01:03.520 --> 01:09.340 And then we go ahead and, uh, move inside a ray. 01:09.340 --> 01:15.880 And the very first elements today is going to be the key way the associative array is going to be the 01:15.880 --> 01:16.420 value. 01:16.420 --> 01:18.490 So let's say tornado. 01:19.150 --> 01:23.440 And uh so we're gonna say it an arrow is equal. 01:23.710 --> 01:27.490 And let me say it gives 35 goals. 01:27.520 --> 01:28.960 Go ahead and put a semicolon. 01:28.960 --> 01:31.690 And and then the next one is Macy. 01:31.930 --> 01:38.560 And uh the associative array is going to be let me say 30 goes. 01:38.560 --> 01:45.850 So and the next one is going to be let me say Sasha. 01:46.030 --> 01:53.260 And uh, let this be equal to 25 goals. 01:53.260 --> 01:57.130 And uh, so you cannot add one more. 01:57.130 --> 02:00.030 So I'll go ahead and track this a little bit Park West. 02:00.030 --> 02:01.320 So we were to add one more. 02:01.320 --> 02:05.550 So the next one we're going to add, we may see this is a seller. 02:05.790 --> 02:12.330 And uh, the next is going to be let's say 20 goes. 02:12.750 --> 02:13.320 All right. 02:13.320 --> 02:18.030 So I'm going to add this to create this array alpha players. 02:18.030 --> 02:23.070 And now the goals which they give is the associative array. 02:23.100 --> 02:26.070 So the very first one here is the key. 02:26.070 --> 02:31.440 So the names the names are the keys white goes which they give is the values. 02:31.440 --> 02:35.010 So ensure that the keys are unique. 02:35.040 --> 02:39.420 The keys must always be unique but the values can be the same. 02:39.420 --> 02:47.490 So maybe each of these players can be 30 goals or true you understand, but they shouldn't be at the 02:47.490 --> 02:51.510 same name in order not to throw an error right in here. 02:51.540 --> 02:56.130 So go ahead and put a semicolon at the end of these so it can be able to check this out. 02:56.160 --> 02:59.090 Then on this card here and uh encode called this out. 02:59.090 --> 03:04.130 So for us to echo this out, Corina say echo, echo. 03:04.160 --> 03:05.270 Dorothy. 03:05.300 --> 03:06.590 Underscore. 03:07.310 --> 03:08.000 Sorry. 03:08.240 --> 03:13.130 Dorothy Rothstein goes because you just want to echo the goes. 03:13.160 --> 03:13.610 All right. 03:13.640 --> 03:22.280 And now we go ahead and impute the keys and not the values, because each of the keys will give us the 03:22.280 --> 03:25.250 corresponding value which is associative array. 03:25.280 --> 03:28.160 Now let's go ahead and say messy. 03:28.250 --> 03:30.800 And we'll go ahead and press semicolon. 03:30.980 --> 03:32.390 And I save this. 03:32.420 --> 03:34.640 Now let's go ahead and refresh this and check it out. 03:34.640 --> 03:36.740 So messy is dirty. 03:37.610 --> 03:38.330 You see that. 03:38.330 --> 03:46.070 And what if we go ahead and change this to Ronaldo and set this. 03:46.070 --> 03:47.480 And let's refresh. 03:47.480 --> 03:50.420 So you can see we have Ronaldo 35. 03:50.420 --> 03:53.000 And that actually works fine. 03:53.030 --> 03:55.760 Now I can also do just like a normal array. 03:55.790 --> 03:58.780 I can also Change their values. 03:58.780 --> 04:00.610 So if all to change the value. 04:00.640 --> 04:04.810 I'll go over here and I'm going to give in the variable name. 04:04.810 --> 04:06.940 And I'm going to say goes. 04:08.470 --> 04:12.010 And then I'm going to add the key. 04:12.070 --> 04:20.740 I'm going to say messy and let mercy be equal to 100 goals. 04:21.820 --> 04:22.540 Semicolon. 04:22.540 --> 04:27.160 And if I should echo this out I'm going to say messy. 04:27.250 --> 04:30.010 And then I'll go ahead and refresh this. 04:30.040 --> 04:35.230 You can see that messy is no longer 30 goals, but 100 goals. 04:35.530 --> 04:42.160 So you can see that you do just normal things you do on the normal arrays right in here. 04:42.160 --> 04:47.260 But what the difference right in here is the keys and the values. 04:47.260 --> 04:49.690 So this has keys and this has values. 04:49.690 --> 04:56.200 So in an array we access our race using the index values. 04:56.200 --> 04:59.560 But One here we assess our race using the keys. 04:59.560 --> 05:03.610 That is the difference between associative arrays and the number arrays. 05:04.210 --> 05:07.990 So each of the keys are mapped to a particular value. 05:07.990 --> 05:10.750 And each of these keys they must be unique. 05:10.780 --> 05:13.510 What the values can actually be the same. 05:14.140 --> 05:15.160 So I hope that is cool. 05:15.160 --> 05:24.040 Now what if you want to check out how many of these goals that is, you can go ahead and let me go ahead 05:24.040 --> 05:26.110 and comment on this. 05:26.110 --> 05:34.270 And then we go ahead and say that this is the equal and then you okay. 05:34.300 --> 05:39.910 So goes right. 05:39.910 --> 05:45.580 So I input global right in here because I want it to autocomplete it. 05:45.580 --> 05:48.910 So equal goes. 05:50.290 --> 05:56.720 And uh we input this into. 05:57.950 --> 06:02.180 Was this because once just want to check how many goes that are here. 06:03.140 --> 06:06.140 Then go ahead and put the counts right in here. 06:06.140 --> 06:09.830 And at the end of this I save this. 06:09.860 --> 06:11.330 Let's check it out for. 06:11.330 --> 06:15.800 So we have four of these keys and values. 06:15.800 --> 06:17.930 So remember that one of these is one. 06:17.930 --> 06:19.160 And this is one. 06:19.190 --> 06:20.480 This is a one. 06:20.480 --> 06:22.400 And this is another one making it four. 06:22.400 --> 06:25.880 So this can actually take a string and not just numbers. 06:25.880 --> 06:38.270 So if I go ahead and say hello and uh if I go ahead and comment on this and let me see, oh, I actually 06:38.270 --> 06:42.350 opened this kind of crisis again with a semicolon. 06:43.460 --> 06:46.820 And, uh, the let me see. 06:46.850 --> 06:48.680 So can you put Ronaldo. 06:51.140 --> 06:53.300 Save this and refresh this. 06:53.330 --> 06:53.750 We have. 06:53.750 --> 06:54.170 Hello. 06:54.170 --> 06:59.360 So it can actually be a string and not just a number only. 06:59.540 --> 06:59.990 All right. 06:59.990 --> 07:01.310 So you can use this as a grade. 07:01.340 --> 07:02.960 Maybe you want to check the grade of students. 07:02.960 --> 07:08.690 You can say Ronaldo is equal to a mrs. B and the Sakai C Salah is D. 07:09.050 --> 07:12.530 So we can use that to actually check the grade of a student. 07:12.560 --> 07:14.720 Let's go ahead and create a simple form. 07:14.750 --> 07:15.380 All right. 07:15.380 --> 07:17.330 So can we use this with our form. 07:17.330 --> 07:23.300 So if I go ahead and create a simple form let's go ahead and say that this is a form so that once we 07:23.300 --> 07:29.900 go into the form and input the number or the name of the player, it shows the goals that is scored. 07:29.930 --> 07:30.530 All right. 07:30.560 --> 07:34.160 So let's go ahead and promise the form right in here. 07:34.970 --> 07:36.410 Now the form is closed. 07:36.410 --> 07:48.470 So we go ahead and given the action and let the action be site dot PHP and let the method be equal to 07:48.500 --> 07:50.570 post method just descending. 07:50.570 --> 07:58.420 And then what we need to do is go ahead and put an input and lead type of the input. 07:59.200 --> 08:05.470 Let it type of the input text, because we're just not to put a name of the player and let the name 08:05.590 --> 08:11.320 again and give the name to be players, because we're dealing with our players right in here. 08:11.350 --> 08:16.150 So now let's go ahead and give this input. 08:17.140 --> 08:19.780 So we're putting that input type right in here. 08:19.780 --> 08:24.250 And the type is going to be a submit. 08:25.360 --> 08:27.070 And God how cool is this. 08:27.310 --> 08:27.940 All right. 08:27.940 --> 08:34.150 So if I should go ahead and go ahead and comment on this I save this. 08:34.150 --> 08:36.190 So I'm able to refresh and check it out. 08:36.430 --> 08:41.350 Now if I go ahead and input Ronaldo it's going to say hello array. 08:41.350 --> 08:42.520 And if you put Messi. 08:42.550 --> 08:45.220 So taxi and the score is five. 08:45.250 --> 08:46.300 Salah is 30. 08:46.330 --> 08:47.830 Sorry is 20. 08:47.860 --> 08:51.670 Now how will you be able to connect this with PHP. 08:51.700 --> 08:53.550 So that is the next thing. 08:53.550 --> 08:56.760 So go ahead and say echo. 08:57.870 --> 09:05.100 And now go ahead and get a variable which is goes. 09:08.700 --> 09:09.630 Goes. 09:09.810 --> 09:12.390 And inside this goes. 09:12.390 --> 09:17.040 You go ahead and pass in the method which is the post method. 09:17.070 --> 09:19.200 All right isn't the square bracket. 09:19.200 --> 09:30.060 So go ahead I say underscore posts and you pass in the name of this input tag which you just created 09:30.060 --> 09:30.780 right in here. 09:30.810 --> 09:33.210 And that is play as. 09:33.210 --> 09:38.130 So always remember to put a semicolon at the end of this and let's save this. 09:38.130 --> 09:47.550 So now if I refresh this and uh so let's go ahead and I'll go ahead and post a comment on this so that 09:47.550 --> 09:50.940 we can be able to deal with only this. 09:50.970 --> 09:57.620 Now let me go ahead and say I put in Macy and let's say this and that is 30. 09:57.980 --> 09:58.790 All right. 09:58.850 --> 10:00.500 So that is 30. 10:01.790 --> 10:04.970 And what if you put Ronaldo. 10:07.250 --> 10:09.500 Gets hit and that is hello. 10:09.710 --> 10:11.000 It can be able to see that. 10:11.000 --> 10:16.970 And what if you put in soccer and hit on submit. 10:16.970 --> 10:18.230 That is 25. 10:18.260 --> 10:19.880 And what of Salah. 10:19.910 --> 10:22.820 And that is 20. 10:22.850 --> 10:24.320 Oh that is Salah. 10:24.470 --> 10:33.770 And that should be a submit okay Salah I use an uppercase S right in here. 10:33.890 --> 10:35.270 And that is 20. 10:35.390 --> 10:35.720 All right. 10:35.720 --> 10:38.660 So you should always be careful because it's case sensitive. 10:38.690 --> 10:39.170 All right. 10:39.170 --> 10:43.940 So let me put this down to lowercase so we don't actually make a mistake. 10:43.970 --> 10:44.570 All right. 10:44.570 --> 10:49.280 So you can see we have been able to use this with every player right in here. 10:49.280 --> 10:52.360 And we are able to get all this and that. 10:52.390 --> 10:53.410 What do you find? 10:53.410 --> 10:55.090 So you put it down on your own. 10:55.090 --> 10:56.260 You play around with it. 10:56.290 --> 10:58.600 You can see how the associative arrays work. 10:58.630 --> 11:05.470 Associative arrays use keys and values, and the keys must always be unique or the values can be the 11:05.470 --> 11:05.890 same. 11:05.890 --> 11:16.090 So if I say I have a sucker to be 80 and ABC is also 80, if I go ahead and put Sakurai's submit, I 11:16.090 --> 11:17.080 still get my 30. 11:17.110 --> 11:21.130 If I go ahead and put messy, I get my dates here. 11:21.130 --> 11:27.730 So the keys has to be different, but the values can be the same or different. 11:27.730 --> 11:30.970 There is no problem and it can actually be a number. 11:31.000 --> 11:33.970 The values can either be numbers or strings. 11:33.970 --> 11:35.110 That is no problem. 11:35.110 --> 11:37.540 That is all about associative arrays. 11:37.540 --> 11:39.910 So go ahead and play around with it and check it out. 11:39.910 --> 11:44.380 And if you have any questions on that this video lecture, please use the question and answer section. 11:44.380 --> 11:46.990 And I'm going to get back to you as soon as possible. 11:47.020 --> 11:47.950 Thank you so much. 11:47.950 --> 11:51.010 And I'm going to see you in the next video lecture.