Difference between revisions of "PHP-and-MySQL/C2/Comparison-Operators/English-timed"

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|00:00
 
|00:00
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|In this PHP tutorial we will learn about Comparison Operators.
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|In this '''PHP''' tutorial, we will learn about '''Comparison Operators'''.
 
|-
 
|-
 
|00:05
 
|00:05
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|Comparison Operators can compare 2 values, 2 strings or 2 variables that can contain any of them and will act upon that.
+
|Comparison operators can compare 2 '''values''', 2 '''strings''' or 2 '''variables''' that can contain any of them and will act upon that.
 
|-
 
|-
 
|00:15
 
|00:15
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|For this I am going to use an IF statement.
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|For this, I am going to use an '''if''' statement.
 
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|-
 
|00:19
 
|00:19
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|Lets start by creating the IF statement structure.
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|Let's start by creating the '''if''' statement structure.
 
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|-
 
|00:25
 
|00:25
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|My condition is if 1==1.
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|My '''condition''' is '''if 1==1''',
 
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|00:30
 
|00:30
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|echo.
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|'''echo'''
 
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|-
 
|00:33
 
|00:33
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|True.
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|'''True'''
 
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|-
 
|00:37
 
|00:37
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|and then else.
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|and then '''else'''
 
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|00:42
 
|00:42
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|echo.
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|'''echo'''
 
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|-
 
|00:44
 
|00:44
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|False. Remember I don't need these brackets so I'm going to take them out.
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|'''False'''. Remember, I don't need these brackets; so I'm going to take them out.
 
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|-
 
|00:51
 
|00:51
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|Lets indent it
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|Let's '''indent''' it.
 
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|00:56
 
|00:56
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|-
 
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|01:02
 
|01:02
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|Two = to means comparison operator.  We've seen this in the IF statement before.
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|Two 'equals to' (==) means the 'comparison operator'.  We've seen this in the '''if''' statement before.
 
|-
 
|-
 
|01:08
 
|01:08
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|1 does equal to 1 so this will echo True. Lets try it.
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|1 does equal to 1; so this will '''echo''' "True". Let's try it.
 
|-
 
|-
 
|01:13
 
|01:13
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|We got True.
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|We got '''True'''.
 
|-
 
|-
 
|01:15
 
|01:15
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|Let me change this.  IF 1 is greater than 1 then lets see what result we get.
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|Let me change this.  '''if''' 1 is greater than 1 (1>1) then let's see what result we get.
 
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|-
 
|01:27
 
|01:27
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|False, because 1 is equal to 1 and not greater than 1.
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|'''False''', because 1 is equal to 1 and not greater than 1.
 
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|-
 
|01:33
 
|01:33
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|Now lets change this to 1 greater than or equal to 1
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|Now let's change this to 1 greater than or equal to 1 (1>=1).
 
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|-
 
|01:37
 
|01:37
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|IF 1 greater than or equal to 1, echo True else echo False.
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|'''if''' 1 greater than or equal to 1, '''echo''' "True" else '''echo''' "False".
 
|-
 
|-
 
|01:45
 
|01:45
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|Here we should get True.
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|Here, we should get '''True'''.
 
|-
 
|-
 
|01:48
 
|01:48
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|You can also do the same with less than or equal to. So for example less than
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|You can also do the same with 'less than or equal to'. So, for example: less than (<)
 
|-
 
|-
 
|01:55
 
|01:55
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|would be False, less than or equal to would be True.
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|would be '''False''', less than or equal to (<=) would be '''True'''.
 
|-
 
|-
 
|02:01
 
|02:01
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|We can also say not equal.  So if 1 is not equal to 1 echo True
+
|We can also say 'not equal'.  So, if 1 is not equal to 1 (1!=1) '''echo''' '''True'''.
 
|-
 
|-
 
|02:11
 
|02:11
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|Refresh.  We'll get False here because 1 is equal to 1. Now lets say if 1 isn't equal to 2
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|Refresh.  We'll get '''False''' here because 1 is equal to 1. Now let's say if 1 isn't equal to 2 (1!=2).
 
|-
 
|-
 
|02:20
 
|02:20
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|We get True because 1 is not equal to 2
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|We get '''True''' because 1 is not equal to 2.
 
|-
 
|-
 
|02:25
 
|02:25
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|These are the basic Comparison Operators that you will be using for our tutorials
+
|These are the basic comparison operators that you will be using for our tutorials.
 
|-
 
|-
 
|02:33
 
|02:33
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|Expand on this - practice them - and you'll understand them better  
+
|Expand on this - practice them - and you'll understand them better.
 
|-
 
|-
 
|02:40
 
|02:40
−
|You can also compare variables using these operators. So for example num1 = 1
+
|You can also compare variables using these operators. So for example: num1 = 1,
 
|-
 
|-
 
|02:48
 
|02:48
−
|num2 = 2.   All we now do is replace these values and there we go
+
|num2 = 2. All we now do is, replace these values and there we go.
 
|-
 
|-
 
|03:01
 
|03:01
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|This will produce exactly the same result as we've got earlier -  which is True.   Now all we need to do is change these values
+
|This will produce exactly the same result as we've got earlier which is '''True'''. Now all we need to do is, change these values.
 
|-
 
|-
 
|03:11
 
|03:11
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|Please note this will now read as num1 = 1 num2 = 1 so if num1 doesn't equal 1 it is False because 1 does equal 1 therefore we get False  
+
|Please note, this will now read as num1 = 1, num2 = 1. So if 'num1' doesn't equal 1 it is "False" because 1 does equal 1 therefore we get '''False'''.
 
|-
 
|-
 
|03:24
 
|03:24
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|These here are the simple Comparison Operators. Play around with them. See what you can do. Thanks for watching.  
+
|These here are the simple comparison operators. Play around with them. See what you can do. Thanks for watching.  
 
|-
 
|-
 
|03:33
 
|03:33
−
|This is Mad Madhur dubbing for the Spoken Tutorial Project.
+
|This is Mad Madhur, dubbing for the Spoken Tutorial Project.
 
|-
 
|-

Latest revision as of 12:50, 12 June 2015

Time Narration
00:00 In this PHP tutorial, we will learn about Comparison Operators.
00:05 Comparison operators can compare 2 values, 2 strings or 2 variables that can contain any of them and will act upon that.
00:15 For this, I am going to use an if statement.
00:19 Let's start by creating the if statement structure.
00:25 My condition is if 1==1,
00:30 echo
00:33 True
00:37 and then else
00:42 echo
00:44 False. Remember, I don't need these brackets; so I'm going to take them out.
00:51 Let's indent it.
00:56 Never mind the indenting.
00:59 This is the first comparison operator.
01:02 Two 'equals to' (==) means the 'comparison operator'. We've seen this in the if statement before.
01:08 1 does equal to 1; so this will echo "True". Let's try it.
01:13 We got True.
01:15 Let me change this. if 1 is greater than 1 (1>1) then let's see what result we get.
01:27 False, because 1 is equal to 1 and not greater than 1.
01:33 Now let's change this to 1 greater than or equal to 1 (1>=1).
01:37 if 1 greater than or equal to 1, echo "True" else echo "False".
01:45 Here, we should get True.
01:48 You can also do the same with 'less than or equal to'. So, for example: less than (<)
01:55 would be False, less than or equal to (<=) would be True.
02:01 We can also say 'not equal'. So, if 1 is not equal to 1 (1!=1) echo True.
02:11 Refresh. We'll get False here because 1 is equal to 1. Now let's say if 1 isn't equal to 2 (1!=2).
02:20 We get True because 1 is not equal to 2.
02:25 These are the basic comparison operators that you will be using for our tutorials.
02:33 Expand on this - practice them - and you'll understand them better.
02:40 You can also compare variables using these operators. So for example: num1 = 1,
02:48 num2 = 2. All we now do is, replace these values and there we go.
03:01 This will produce exactly the same result as we've got earlier which is True. Now all we need to do is, change these values.
03:11 Please note, this will now read as num1 = 1, num2 = 1. So if 'num1' doesn't equal 1 it is "False" because 1 does equal 1 therefore we get False.
03:24 These here are the simple comparison operators. Play around with them. See what you can do. Thanks for watching.
03:33 This is Mad Madhur, dubbing for the Spoken Tutorial Project.

Contributors and Content Editors

Minal, Pratik kamble, Sandhya.np14

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