…By default, the PDO fetch and fetchAll methods return each row of…a result set as an array indexed both by column name and number.…But you can modify this behavior in interesting ways.…This is pdo_array.php, which you can find in the…chapter four, 04_01 folder of the exercise files.…On line 4, there's a simple select query…that selects name and meaning from the names table.…The query is then executed on the following line and on line 6,…the results are stored as an array called names using the fetchAll method.…
Let's inspect the content of the names array…with print_r to make it easier to read.…We'll start off with a pre tag, then print_r.…We'll pass it names, that array, and then a closing pre tag.…So if we save that page and then load it into a…browser, the result is a multidimensional array with each value listed twice.…Let's say you wanted to turn this into an associative array…using each name as the key and the meaning as the value.…
One way to do that would be to loop through each sub-array and use the…
Author
Released
7/7/2014- Connecting to a database with PDO or MySQLi
- Fetching a result set
- Executing simple non-SELECT queries
- Sanitizing user input
- Binding input and output values
- Passing an array of values to the execute() method
- Working with advanced PDO fetch methods
- Executing a MySQLi transaction
- Freeing resources that are no longer needed
- Submitting multiple queries
- Creating an instance of a class from a result set
Skill Level Intermediate
Duration
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Advanced PHP: Debugging Techniques
with Jon Peck1h 29m Intermediate
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Introduction
-
Welcome1m
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Using the exercise files4m 56s
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Setting SQLite permissions1m 11s
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1. Why Use Object-Oriented PHP to Access a Database?
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Using prepared statements4m 24s
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Using transactions1m 43s
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2. PHP Data Object (PDO) Basics
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Fetching a result set8m 3s
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Getting error messages7m 17s
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3. PDO-Prepared Statements and Transactions
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Using named parameters9m 51s
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Binding results to variables7m 53s
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Executing a transaction6m 54s
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4. Advanced PDO Fetch Methods
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Reusing a result set7m 53s
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5. MySQL Improved Basics
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Setting the character set1m 57s
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Fetching the result7m 35s
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Handling non-SELECT queries5m 27s
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Getting error messages5m 47s
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6. MySQLi Prepared Statements and Transactions
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Binding output variables5m 6s
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7. Diving Deeper into MySQLi
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Using real_query()6m 1s
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Submitting multiple queries6m 41s
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Conclusion
-
PDO and MySQLi compared3m 31s
-
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Video: Generating an array from a pair of columns