PHP 5.4.31 Released

oci_num_fields

(PHP 5, PECL OCI8 >= 1.1.0)

oci_num_fieldsReturns 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($stidOCI_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.

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User Contributed Notes 1 note

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jnield at impole dot com
14 years ago
The following is not immediately obvious:

If you need the number of columns in a REF CURSOR returned from a PL/SQL procedure, you need to use OCINumColumns() on the cursor handle returned by OCINewCursor after it is bound and executed, not the statement handle. Same applies for OCIColumnName() and friends.
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