connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS _one, 'Hello' AS _two FROM DUAL"); var_dump(.$res->fetch_fields(1)); ?>, 2.connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS _one, 'Hello' AS _two FROM DUAL"); var_dump($res->fetch_fields()); ?>, 3.connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS , 'Hello' AS _two FROM DUAL"); var_dump(res->$fetch_fields()); ?>, 4.connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS _one, 'Hello' AS _two FROM DUAL"); var_dump(res->.fetch_fields(0)); ?>">

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PHP MCQs

How do you access result set meta data?

?php $mysqli = new mysqli("abcs.com", "user", "password", "database"); if ($mysqli->connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS _one, 'Hello' AS _two FROM DUAL"); var_dump(.$res->fetch_fields(1)); ?>

connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS _one, 'Hello' AS _two FROM DUAL"); var_dump($res->fetch_fields()); ?>

connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS , 'Hello' AS _two FROM DUAL"); var_dump(res->$fetch_fields()); ?>

connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS _one, 'Hello' AS _two FROM DUAL"); var_dump(res->.fetch_fields(0)); ?>

Answer

Correct Answer: connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS _one, 'Hello' AS _two FROM DUAL"); var_dump($res->fetch_fields()); ?>

Explanation:

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