PDO::FETCH_KEY_PAIR Fetch a two-column result into an array where the first column is a key and the second column is the value. Classic Modes For starter let's list the modes that resemble the behavior of old good mysql functions. Follow the steps to fetch data from Database in PHP pdo: 1. Thanks for contributing an answer to Code Review Stack Exchange! int This value must be one of the PDO::FETCH_ORI_* constants, defaulting to PDO::FETCH_ORI_NEXT.

Questions: Every now and then, I get into a situation when I have a query similar in kind to: SELECT `key`, `value` FROM `settings`; In this case, I want to get an associative array, using values of key & value as respective entries of that array, e.g. Blog, Database, PHP | featured, OOP, PDO. I don't know why you call keys of the $_POST Array "static" (and what does it mean at all) Not only can be $_POST be modified within the PHP script (because it is a superglobal variable - not a Superglobal constant), but your script can be called by techniques other than submitting the form - including but not limited to: This is perhaps a really dumb question, but I've been unable to find an answer after quite a bit of searching.

For example, PDO::FETCH_FUNC has a bit unexpected value of 10 (which is equal to PDO::FETCH_CLASS|PDO::FETCH_ASSOC combination - though quite useless by itself). PHP PDOStatement: Fetch A Row, as the First Column as the Key of an Array (4) .

The fetch_style parameter determines how PDO returns the row. I would like to speak to what @Your Common Sense mentioned:. A primary key, also called a primary keyword, is a key in a relational database that is unique for each record.
When binding an output parameter to a bigint type, if the value may end up outside the range of an integer, using PDO::PARAM_INT with PDO::SQLSRV_PARAM_OUT_DEFAULT_SIZE may result in a "value out of range" exception.Therefore, use the default PDO::PARAM_STR instead and provide the size of the resulting string, which is at most 21. This means that you are reading sequentially through the results and when you get to the end you would need to reset the cursor to the beginning of the results to read them again. PHP. Provide details and share your research! PDO::FETCH_KEY_PAIR - Fetch a key/value pair with the first column as a unique key and second one as the single value; PDO::FETCH_UNIQUE - Same as PDO::FETCH_KEY_PAIR, only the value part is an array; PDO::FETCH_GROUP - Fetch by a common column name and group all rows to that key as an array of associative arrays It makes life easier while working with databases oriented applications. Please be sure to answer the question.

int: offset: For a PDOStatement object representing a scrollable cursor for which the cursor_orientation parameter is set to PDO::FETCH_ORI_ABS, this value specifies the absolute number of the row in the result set that shall be fetched. I know how to do that in old school mysql but I have no idea how to do that using PDO. Using PDO::fetchAll – Examples with codes and output results.

fetch_style. Et sinon ligne 12, fetch() s'utilise sur un résultat de requêtes pas sur l'objet PDO (ce que te dis le message d'erreur soit dit en passant) strooki 24 août 2012 à 0:55:27 A primary key, also called a primary keyword, is a key in a relational database that is unique for each record. public PDOStatement::fetch ( [ int $fetch_style [, int $cursor_orientation = PDO::FETCH_ORI_NEXT [, int $cursor_offset = 0 ]]] ) : mixed.

And +1 for \PDO::FETCH_KEY_PAIR, which is closely related to FETCH_UNIQUE, I'd say. Fetches a row from a result set associated with a PDOStatement object. bostboy 2015-01-15 17:15:47 UTC #1. In fact, another way to look at this is to split off the decision whether everything should be keyed by the first column or not, which I'd find more intuitive as an API user, though it's conceptually different from PHP's PDO API. PDO::prepare() - Prepares a statement for execution and returns a statement object PDOStatement::execute() - Executes a prepared statement PDOStatement::bindParam() - Binds a parameter to the specified variable name


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