oci_num_fields

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

Returns the number of result columns in a statement

int oci_num_fields ( resource $statement )

Gets the number of columns in the given statement.

Parameters:

statement

A valid OCI statement identifier.

Returns:

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

Notes:

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.

Examples:

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);
 
?>

Links:

http://php.net/manual/en/function.oci-num-fields.php

doc_php

2025-01-10 15:47:30

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