…So now we know how modulo division can be…used to identify every fourth item in a series.…We can fix the loop, in mixed.php.…To keep track of the number of times the loop has run, we need…to initialize a counter variable, outside the loop, and set its value to zero.…So, the loop begins on line 57.…We need to add our counter variable before that loop.…So,…let's just add in a few lines.…And counter variables in PHP, by tradition, are usually $i.…
So, we'll set that to zero.…And then, when the loop begins, we need to have an if decision making block.…So if, and then the condition will be with a i, is equally divisible by four.…So using modulo division, and to make sure that it is actually zero…and not a false result we need three equal signs, followed by zero, and then…we need an opening curly brace for our block.…
Then these two tags will be displayed, and we…need the closing curly brace for that conditional block.…That goes there.…So the first time that the loop runs, i will be zero.…Using modulo division, the remainder will be zero.…
Author
Released
12/9/2013Note: This course was recorded with Adobe Dreamweaver, but you can use the code editor of your choice to follow along.
- How to use PHP in a webpage
- Storing and displaying text and numbers in variables
- Using functions
- Adding comments to your PHP scripts
- Moving common page elements to include files
- Displaying different content on a page
- Working with multiple values in arrays and loops
- Getting form input sent by the POST method
- Using PHP sessions to preserve data
- Storing data in session variables
- Connecting to and querying a database
- Handling errors
Skill Level Beginner
Duration
Views
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Introduction
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Welcome1m 30s
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Using the exercise files5m 13s
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1. Introduction to PHP
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How to use PHP in a web page6m 43s
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2. Using Server-Side Includes for Common Page Elements
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3. Using Conditions to Change Page Output
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How PHP makes decisions3m 30s
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4. Working with Multiple Values in Arrays and Loops
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Labeling array elements7m 21s
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5. Getting User Input from a Form
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Calculating the order total6m 34s
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6. Displaying Content from a Database
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Loading data into MySQL5m 37s
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Connecting to the database7m 47s
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Querying the database6m 15s
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Linking to a details page2m 40s
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7. Handling Errors
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Dealing with PHP errors4m 15s
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Tracking down parse errors4m 32s
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Conclusion
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What's next?2m 26s
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Video: Repeating output at specific intervals in a loop