Php/docs/function.oci-field-is-null
oci_field_is_null
(PHP 5, PHP 7, PECL OCI8 >= 1.1.0)
oci_field_is_null — Checks if a field in the currently fetched row is NULL
Description
oci_field_is_null
( resource $statement
, mixed $field
) : bool
Checks if the given field from the current row of
statement is NULL.
Parameters
statement- A valid OCI statement identifier.
field- Can be the field's index (1-based) or name.
Return Values
Returns TRUE if field is NULL, FALSE otherwise.
Examples
Example #1 oci_field_name() example
<?php// Create the table with:// CREATE TABLE mytab (c1 NUMBER);// INSERT INTO mytab VALUES (1);// INSERT INTO mytab VALUES (NULL);$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.
