Пример 1. Retrieving the number of fields in a result set
- The following example demonstrates how to retrieve the number of fields returned in a result set.
<?php
$sql = "SELECT id, name, breed, weight FROM animals ORDER BY breed"; $stmt = db2_prepare($conn, $sql); db2_execute($stmt, $sql); $columns = db2_num_fields($stmt);
echo "There are {$columns} columns in the result set."; ?>
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Результат выполнения данного примера:
There are 4 columns in the result set.
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