…Often, the values stored in the database or submitted…through an online form, aren't in the right format.…PHP provides a huge number of built in…functions that allow you to manipulate string values.…As a simple example, let's use a function to convert a string to uppercase.…In the file that I've got open, above the doc type, I've…created a variable called city and I've assigned it the value, London.…And in the HTML down below, I've got 3 paragraphs with…PHP blocks that use echo to display the value of city.…
And in this second paragraph, I want to convert the value of city.…To uppercase.…I'm going to do that using a built in…PHP function that has a rather unpronounceable name, str2upper.…It makes a bit more sense when you realize that the str at the beginning…stands for string.…So it's string to upper, or string to upper case.…I'll call it string to upper to make it easier to pronounce.…So to convert city to upper case, I need…to pass city as an argument to string to upper.…
The way I do that is after echo, add string to upper, strtoupper.…
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: Using functions to manipulate values