pdo

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Newest loan per user for all users

// Edit: All work fin开发者_开发问答e with: SELECT u.*, l.cod AS loans_cod, l.step AS loans_step FROM users AS u[详细]

2023-04-12 01:58 分类：问答
Learning PHP PDO.. would like to know the correct way to use it when many queries are involved

In the past I would just create a class to connect to a database, and then run a bunch of methods to run queries.. like so:[详细]

2023-04-11 23:01 分类：问答
Get Last Executed Query in PHP PDO

I would like to know what query is executed using PHP PDO. I have: <?php try { $DBH = new PDO(\"mysql:host=localhost;dbname=mytable\", \'myuser\', \'mypass\');[详细]

2023-04-11 20:19 分类：问答
What do these numbers mean in the PDO object? [duplicate]

This question already has an answer here: What are the numbers in var_dump result? (1 answer) Closed 2 years ago.[详细]

2023-04-11 13:28 分类：问答
Can SQL perform calculation on update?

Can SQL perform calculation on update? For instance, the stored product quantity was 5, and after being sold, say 3 items, I want to update the quantity left in the product tables,[详细]

2023-04-11 11:42 分类：问答
Too many try/catch block for PDO

In the controllers class files, most of the method functions include try/catch block something like this:[详细]

2023-04-10 13:45 分类：问答
Why is this SQL SELECT statement not retrieving the row I just inserted?

I am creating an in-memory SQLite database and inserting some a row into it. Unfortunately, I am unable to select the row I just inserted.[详细]

2023-04-10 09:07 分类：问答
check when PDO Fetch select statement returns null

I have the following code: $check = $dbh->prepare(\"SELECT * FROM BetaTesterList WHERE EMAIL = ?\");[详细]

2023-04-10 03:39 分类：问答
What's the limitations of PDO named arguments

Using prepared statements with PDO, I understand it as there\'s two paths, either ? or :name. What are the limitations regarding the named parameters? White spaces? Non ASCII-chars?[详细]

2023-04-10 03:20 分类：问答
When to close a connection in PHP?

Right now I open a connection (if one is not already opened) every time I think I will need one. The question is: when I do close it? At 开发者_开发知识库the end of each script that uses it? Is there[详细]

2023-04-10 03:17 分类：问答