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jstolpejstolpe
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mysql select and filter data from database with php and pdo tutorial
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‎mysql_php_pdo/and.php‎

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<?php
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// include global things for use
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include 'global_data.php';
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// sql string
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$sql = '
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SELECT
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*
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FROM
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drinks
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WHERE
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size = :size AND
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sugar_free = :sugar_free
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';
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$params = array( // keys must match the variables in the sql so they can get replaced with the value
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':size' => '8oz',
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':sugar_free' => '1'
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);
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// prepare the sql
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$statement = $database->prepare( $sql );
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// execute the sql
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$statement->execute( $params );
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// get the query data
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$queryDrinks = $statement->fetchAll();
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// display the html
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displayViewHtml( $sql, $allDrinks, $queryDrinks, $statement );
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?>

‎mysql_php_pdo/between.php‎

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<?php
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// include global things for use
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include 'global_data.php';
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$sql = array( // array keyed by the various sql statments we can run
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'BETWEEN' => '
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SELECT
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*
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FROM
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drinks
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WHERE
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expiration_date BETWEEN
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CAST(:start_date AS DATE) AND
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CAST(:end_date AS DATE)
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',
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'NOTBETWEEN' => '
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SELECT
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*
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FROM
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drinks
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WHERE
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expiration_date NOT BETWEEN
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CAST(:start_date AS DATE) AND
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CAST(:end_date AS DATE)
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'
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);
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// check url for sql statement to run
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$sql = isset( $_GET['filter'] ) && isset( $sql[$_GET['filter']] ) ? $sql[$_GET['filter']] : $sql['BETWEEN'];
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$params = array( // keys must match the variables in the sql so they can get replaced with the value
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':start_date' => '2021-11-01',
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':end_date' => '2021-12-01'
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);
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// prepare the sql
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$statement = $database->prepare( $sql );
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// execute the sql
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$statement->execute( $params );
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// get the query data
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$queryDrinks = $statement->fetchAll();
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// display the html
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displayViewHtml( $sql, $allDrinks, $queryDrinks, $statement );
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?>

‎mysql_php_pdo/distinct.php‎

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<?php
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// include global things for use
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include 'global_data.php';
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// sql string
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$sql = '
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SELECT DISTINCT
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name,
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flavor,
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size
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FROM
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drinks
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WHERE
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size = :size OR
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flavor = :flavor
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';
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$params = array( // keys must match the variables in the sql so they can get replaced with the value
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':size' => '8oz',
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':flavor' => 'Tropical'
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);
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// prepare the sql
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$statement = $database->prepare( $sql );
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// execute the sql
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$statement->execute( $params );
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// get the query data
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$queryDrinks = $statement->fetchAll();
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// generate page title
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$pageTitle = 'MySQL SELECT ' . strtoupper( pathinfo( $_SERVER['SCRIPT_FILENAME'], PATHINFO_FILENAME ) ) . ' | PHP Tutorial | PDO Tutorial';
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?>
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<!DOCTYPE html>
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<html>
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<head>
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<title>
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<?php echo $pageTitle; // display page title ?>
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</title>
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</head>
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<body>
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<?php displayNavBar(); // display the navigation bar ?>
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<h1>
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<?php echo $pageTitle; // display page title ?>
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</h1>
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<hr />
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<?php displayDrinks( $allDrinks ); // display all drinks in a table ?>
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<hr />
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<div>
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<h2>
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<?php echo $sql; // display the sql statement we are running ?>
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</h2>
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<table border="1">
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<tr>
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<th>name</th>
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<th>flavor</th>
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<th>size</th>
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</tr>
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<?php foreach ( $queryDrinks as $drink ) : // loop over the data and display each row ?>
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<tr>
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<td><?php echo $drink['name']; ?></td>
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<td><?php echo $drink['flavor']; ?></td>
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<td><?php echo $drink['size']; ?></td>
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</tr>
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<?php endforeach; ?>
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</table>
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<h2>
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PDO Debug
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</h2>
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<pre><?php $statement->debugDumpParams(); // dump out pdo params ?></pre>
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<h2>
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Results
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</h2>
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<pre><?php print_r( $drinks ); // print out the raw php result array ?></pre>
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</div>
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</body>
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</html>

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