oci_num_fields
PHP function
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(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)
Returns the number of result columns in a statement
Description
oci_num_fields(resource $statement): int
Gets the number of columns in the given statement.
Parameters
statementA valid OCI statement identifier.
Return Values
Returns the number of columns as an int.
Examples
oci_num_fields() example
php
<?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);
?>