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PHP oci_num_fields

PHP original manual for oci_num_fields [ show | php.net ]

oci_num_fields

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

oci_num_fields — Returns the number of result columns in a statement

Description

int oci_num_fields ( resource $statement )

Gets the number of columns in the given statement.

Parameters

statement

A valid OCI statement identifier.

Return Values

Returns the number of columns as an integer, or FALSE on errors.

Examples

Example #1 oci_num_fields() example

<?php

// Create the table with:
//   CREATE TABLE mytab (id NUMBER, quantity NUMBER);

$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$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

$ncols = oci_num_fields($stid);
for ($i = 1; $i <= $ncols; $i++) {
    echo oci_field_name($stid, $i) . " " . oci_field_type($stid, $i) . "<br>\n";
}

// Outputs:
//    ID NUMBER
//    QUANTITY NUMBER

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

?>

Notes

Note:

In PHP versions before 5.0.0 you must use ocinumcols() instead. This name still can be used, it was left as alias of oci_num_fields() for downwards compatability. This, however, is deprecated and not recommended.