(PHP 5, PHP 7 < 7.4.0)
ibase_num_fields — 結果セットにおけるフィールド数を得る
result_idInterBase 結果 ID。
フィールドの数を整数値で返します。
例1 ibase_num_fields() の例
<?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";
}
?>