CascadiaPHP 2024

oci_field_name

(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)

oci_field_name返回 statement 中的字段名

说明

oci_field_name(resource $statement, string|int $column): string|false

返回 column 的名称。

参数

statement

有效的 OCI 语句标识符。

column

字段索引(从 1 开始)或者名称。

返回值

返回字符串形式的名称, 或者在失败时返回 false

示例

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);

?>

参见

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User Contributed Notes 2 notes

up
-1
Paul
13 years ago
Beware, the field index starts with 1, not 0. It's a bit counter-intuitive.
up
-5
Norbert
13 years ago
This does not work for empty tables.
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