Follow the steps to fetch data from Database in PHP pdo: 1. Hello all, I was wondering how could I get mysql table field names with PDO (also table names would be great). bostboy 2015-01-15 17:15:47 UTC #1. Thanks for contributing an answer to Code Review Stack Exchange!
See Also. Note. 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. And +1 for \PDO::FETCH_KEY_PAIR, which is closely related to FETCH_UNIQUE, I'd say. Classic Modes For starter let's list the modes that resemble the behavior of old good mysql functions.

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. PDO::FETCH_UNIQUE Fetch only the unique values. I would like to speak to what @Your Common Sense mentioned:. Controls the contents of the returned array as documented in PDOStatement::fetch().Defaults to value of PDO::ATTR_DEFAULT_FETCH_MODE (which defaults to PDO::FETCH_BOTH) . FETCH an array with key-value pairs. ... Set the primary key to auto-increment, so that the value of id increase automatically. int ... Set the primary key to auto-increment, so that the value of id increase automatically. 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. 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 Follow the steps to fetch data from Database in PHP pdo: 1. A primary key, also called a primary keyword, is a key in a relational database that is unique for each record. 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 Usually combined with PDO::FETCH_COLUMN or PDO::FETCH_KEY_PAIR. This is perhaps a really dumb question, but I've been unable to find an answer after quite a bit of searching. Thanks Expected result: ----- No error Actual result: ----- Warning: PDOStatement::fetchAll() [pdostatement.fetchall]: SQLSTATE[HY000]: General error: PDO::FETCH_KEY_PAIR fetch mode requires the result set to contain … public PDOStatement::fetch ( [ int $fetch_style [, int $cursor_orientation = PDO::FETCH_ORI_NEXT [, int $cursor_offset = 0 ]]] ) : mixed. Use MathJax to format equations. PDOStatement::fetchColumn() should not be used to retrieve boolean columns, as it is impossible to distinguish a value of FALSE from there being no more rows to … 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 PHP Data Objects (PDO) as an abstraction layer used for accessing databases. Follow the steps to fetch data from Database in PHP pdo: 1. Blog, Database, PHP | featured, OOP, PDO. A primary key, also called a primary keyword, is a key in a relational database that is unique for each record. Update. PDO::FETCH_GROUP Group return by values.
PHP PDOStatement: Fetch A Row, as the First Column as the Key of an Array (4) . 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. Please be sure to answer the question. 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).

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