oci_fetch
oci_field_name
OCI8 Functions
PHP Manual

# oci_field_is_null

(PHP 5, PECL OCI8 >= 1.1.0)

oci_field_is_null — Checks if a field in the currently fetched row is `NULL`

### Description

bool oci_field_is_null ( resource `$statement` , mixed `$field` )

Checks if the given `field` from the current row of `statement` is `NULL`.

### Parameters

`statement`

  A valid OCI statement identifier.

`field`

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

### Return Values

Returns `TRUE` if `field` is `NULL`, `FALSE` otherwise.

### Examples

Example #1 oci_field_name() example

`<?php
// Create the table with:
// CREATE TABLE mytab (c1 NUMBER);
// INSERT INTO mytab VALUES (1);
// INSERT INTO mytab VALUES (NULL);
$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$conn) {
$m = oci_error();
trigger_error(htmlentities($m['message']), E_USER_ERROR);
}
$stid = oci_parse($conn, "SELECT * FROM mytab");
oci_execute($stid);
while (($row = oci_fetch_array($stid, OCI_RETURN_NULLS)) != false) {
$ncols = oci_num_fields($stid);
for ($col = 1; $col <= $ncols; $col++) {
var_dump(oci_field_is_null($stid, $col));
}
}
// Outputs:
// bool(false)
// bool(true)
oci_free_statement($stid);
oci_close($conn);
?>`

### Notes

> Note:

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

oci_fetch
oci_field_name
OCI8 Functions
PHP Manual