Beware, the field index starts with 1, not 0. It's a bit counter-intuitive.PHP - Manual: oci_field_name
2025-10-24
(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)
oci_field_name — 返回 statement 中的字段名
statement有效的 OCI 语句标识符。
column字段索引(从 1 开始)或者名称。
   返回字符串形式的名称, 或者在失败时返回 false
  
示例 #1 oci_field_name() 示例
<?php
// 创建表:
//   CREATE TABLE mytab (number_col NUMBER, varchar2_col varchar2(1),
//                       clob_col CLOB, date_col DATE);
$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$conn) {
$m = oci_error();
trigger_error(htmlentities($m['message']), E_USER_ERROR);
}
$stid = oci_parse($conn, "SELECT * FROM mytab");
oci_execute($stid, OCI_DESCRIBE_ONLY); // Use OCI_DESCRIBE_ONLY if not fetching rows
echo "<table border=\"1\">\n";
echo "<tr>";
echo "<th>Name</th>";
echo "<th>Type</th>";
echo "<th>Length</th>";
echo "</tr>\n";
$ncols = oci_num_fields($stid);
for ($i = 1; $i <= $ncols; $i++) {
$column_name  = oci_field_name($stid, $i);
$column_type  = oci_field_type($stid, $i);
    echo "<tr>";
    echo "<td>$column_name</td>";
    echo "<td>$column_type</td>";
    echo "</tr>\n";
}
echo "</table>\n";
// 输出:
//    Name           Type
//    NUMBER_COL    NUMBER
//    VARCHAR2_COL  VARCHAR2
//    CLOB_COL      CLOB
//    DATE_COL      DATE
oci_free_statement($stid);
oci_close($conn);
?>官方地址:https://www.php.net/manual/en/function.oci-field-name.php