ibase_num_fields()

(PHP 5, PHP 7)

Get the number of fields in a result set

说明

ibase_num_fields(resource $result_id): int

Get the number of fields in a result set.

参数

$result_id: An InterBase result identifier.

返回值

Returns the number of fields as an integer.

范例

Example #1 ibase_num_fields() example

<?php
$rs = ibase_query("SELECT * FROM tablename");
$coln = ibase_num_fields($rs);
for ($i = 0; $i < $coln; $i++) {
    $col_info = ibase_field_info($rs, $i);
    echo "name: " . $col_info['name'] . "\n";
    echo "alias: " . $col_info['alias'] . "\n";
    echo "relation: " . $col_info['relation'] . "\n";
    echo "length: " . $col_info['length'] . "\n";
    echo "type: " . $col_info['type'] . "\n";
}
?>

参见

ibase_field_info()Get information about a field