Difference between revisions of "PHP-and-MySQL/C2/Loops-For-Statement/English-timed"
From Script | Spoken-Tutorial
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|'''Narration''' | |'''Narration''' | ||
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| The basic principle of for loops is that it will repeat a block of codes the number of times you specify, using not only a condition but also the initialization in the beginning and the increment at the end. | | The basic principle of for loops is that it will repeat a block of codes the number of times you specify, using not only a condition but also the initialization in the beginning and the increment at the end. | ||
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| − | | | + | |00:18 |
| So how much you want to increment your variable determines the number of times your variable loops by. | | So how much you want to increment your variable determines the number of times your variable loops by. | ||
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| − | | | + | |00:38 |
|So, it is a bit more complex to write. However it looks good , it does the job and its very compact. | |So, it is a bit more complex to write. However it looks good , it does the job and its very compact. | ||
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| − | | | + | |00:43 |
|Now we write 'for' | |Now we write 'for' | ||
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| − | | | + | |00:53 |
|so you have got three parts of your code here,and your block and that is all you need and your content can go here. | |so you have got three parts of your code here,and your block and that is all you need and your content can go here. | ||
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| − | | | + | |01:03 |
|So, I am going to say 'echo' here and let's create a variable 'num'. So, we have echoed out 'num'. | |So, I am going to say 'echo' here and let's create a variable 'num'. So, we have echoed out 'num'. | ||
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| − | | | + | |01:13 |
|In here, we write num =1, not = = 1 because we are setting the variable num to the value of 1. | |In here, we write num =1, not = = 1 because we are setting the variable num to the value of 1. | ||
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| − | | | + | |01:22 |
|Then we have a condition. For eg, while num < = to 10 | |Then we have a condition. For eg, while num < = to 10 | ||
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| − | | | + | |01:31 |
|Then, we have the increment values. So, we are going to have num ++ and the loop is done. | |Then, we have the increment values. So, we are going to have num ++ and the loop is done. | ||
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| − | | | + | |01:37 |
|So, we type 'For', and our variable num=1 | |So, we type 'For', and our variable num=1 | ||
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| − | | | + | |01:47 |
|Then we have our condition 'While num< =10, the loop will continue, and then we have num ++ | |Then we have our condition 'While num< =10, the loop will continue, and then we have num ++ | ||
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| − | | | + | |01:52 |
|As you can see this is much more useful than having num ++ down below . | |As you can see this is much more useful than having num ++ down below . | ||
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| − | | | + | |01:55 |
|and we need not declare this up here. | |and we need not declare this up here. | ||
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| − | | | + | |01:59 |
|It can be declared inside these parentheses. | |It can be declared inside these parentheses. | ||
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| − | | | + | |02:02 |
|O.K., I forgot the line-break. | |O.K., I forgot the line-break. | ||
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| − | | | + | |02:07 |
|I’ll add a line break on to the end of this. | |I’ll add a line break on to the end of this. | ||
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| − | | | + | |02:10 |
|Refresh. | |Refresh. | ||
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| − | | | + | |02:12 |
|There you go. | |There you go. | ||
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| − | | | + | |02:17 |
|You've got your loop ten times. | |You've got your loop ten times. | ||
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| − | | | + | |02:25 |
|And as it has been specified in such a way it will loop only when num is less than or equal to 10. | |And as it has been specified in such a way it will loop only when num is less than or equal to 10. | ||
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| − | | | + | |02:28 |
|After that the loop will break and you may continue with the rest of the script. | |After that the loop will break and you may continue with the rest of the script. | ||
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| − | | | + | |02:36 |
|This is a bit more complex but once you learn the basics you will find it a lot easier . | |This is a bit more complex but once you learn the basics you will find it a lot easier . | ||
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| − | | | + | |02:37 |
| Thanks for watching. | | Thanks for watching. | ||
Revision as of 11:25, 10 July 2014
| Time | Narration |
| 00:00 | The basic principle of for loops is that it will repeat a block of codes the number of times you specify, using not only a condition but also the initialization in the beginning and the increment at the end. |
| 00:18 | So how much you want to increment your variable determines the number of times your variable loops by. |
| 00:38 | So, it is a bit more complex to write. However it looks good , it does the job and its very compact. |
| 00:43 | Now we write 'for' |
| 00:53 | so you have got three parts of your code here,and your block and that is all you need and your content can go here. |
| 01:03 | So, I am going to say 'echo' here and let's create a variable 'num'. So, we have echoed out 'num'. |
| 01:13 | In here, we write num =1, not = = 1 because we are setting the variable num to the value of 1. |
| 01:22 | Then we have a condition. For eg, while num < = to 10 |
| 01:31 | Then, we have the increment values. So, we are going to have num ++ and the loop is done. |
| 01:37 | So, we type 'For', and our variable num=1 |
| 01:47 | Then we have our condition 'While num< =10, the loop will continue, and then we have num ++ |
| 01:52 | As you can see this is much more useful than having num ++ down below . |
| 01:55 | and we need not declare this up here. |
| 01:59 | It can be declared inside these parentheses. |
| 02:02 | O.K., I forgot the line-break. |
| 02:07 | I’ll add a line break on to the end of this. |
| 02:10 | Refresh. |
| 02:12 | There you go. |
| 02:17 | You've got your loop ten times. |
| 02:25 | And as it has been specified in such a way it will loop only when num is less than or equal to 10. |
| 02:28 | After that the loop will break and you may continue with the rest of the script. |
| 02:36 | This is a bit more complex but once you learn the basics you will find it a lot easier . |
| 02:37 | Thanks for watching. |
