Returns a field's data type name

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- PHP Manual
- OCI8 Functions
- Returns a field's data type name

# oci_field_type

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

oci_field_type — Returns a field's data type name

### Description

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

Returns a field's data type name.

### Parameters

`statement`

  A valid OCI statement identifier.

`column`

  Can be the field's index (1-based) or name.

### Return Values

Returns the field data type as a string or an int, or `false` on failure

### Examples

Example #1 oci_field_type() example

    <?php

    // Create the table with:
    //   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);
        $column_size  = oci_field_size($stid, $i);

        echo "<tr>";
        echo "<td>$column_name</td>";
        echo "<td>$column_type</td>";
        echo "<td>$column_size</td>";
        echo "</tr>\n";
    }

    echo "</table>\n";

    // Outputs:
    //    Name           Type       Length
    //    NUMBER_COL    NUMBER        22
    //    VARCHAR2_COL  VARCHAR2       1
    //    CLOB_COL      CLOB        4000
    //    DATE_COL      DATE           7

    oci_free_statement($stid);
    oci_close($conn);

    ?>

### See Also

- oci_num_fields() - Returns the number of result columns in a statement
- oci_field_name() - Returns the name of a field from the statement
- oci_field_size() - Returns field's size