array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'function.ibase-num-fields.php', 1 => 'ibase_num_fields', ), 'up' => array ( 0 => 'ref.ibase.php', 1 => 'Firebird/InterBase 函数', ), 'prev' => array ( 0 => 'function.ibase-name-result.php', 1 => 'ibase_name_result', ), 'next' => array ( 0 => 'function.ibase-num-params.php', 1 => 'ibase_num_params', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/ibase/functions/ibase-num-fields.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PHP 5, PHP 7 < 7.4.0)
ibase_num_fields — Get the number of fields in a result set
result_id
An InterBase result identifier.
Returns the number of fields as an integer.
示例 #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";
}
?>