How does pdo work in php?
PHP Data Objects
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PDOpStatement($this, $PDOS); bart at mediawave dot nl ¶ 15 years ago
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DBStatement extends PDOStatement neonmandk at gmail dot com ¶ 14 years ago
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build_pdo_query($string, $array) {
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PARAM_host='localhost';
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DB::query("SELECT * FROM Blah") as $row){
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connexion_statement extends PDOStatement jose at thezcompany dot com ¶ 12 years ago
;$stmt = $this->_db->prepare($sql); What is the purpose of PDO in PHP?What Is PDO? PDO in PHP offers a data-access abstraction layer, which means you can issue queries and fetch data using the same functions regardless of which database you're using. PDO isn't a database abstraction; it doesn't rewrite SQL or imitates features that aren't accessible.
How does PDO connect to database?A PDO database connection requires you to create a new PDO object with a Data Source Name (DSN), Username, and Password. The DSN defines the type of database, the name of the database, and any other information related to the database if required. These are the variables and values we stated inside the dbconfig.
How does PHP PDO fetch data?Fetching rows or columns from result sets in PHP (PDO). To return a single row from a result set as an array or object, call the PDOStatement::fetch method.. To return all of the rows from the result set as an array of arrays or objects, call the PDOStatement::fetchAll method.. How does PDO prepared statements work?In layman's terms, PDO prepared statements work like this: Prepare an SQL query with empty values as placeholders with either a question mark or a variable name with a colon preceding it for each value. Bind values or variables to the placeholders. Execute query simultaneously.
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