(PHP 5, PHP 7, PECL OCI8 >= 1.1.0)
Checks if a field in the currently fetched row is
NULL
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.
Returns:
Returns TRUE if field is NULL, FALSE otherwise.
Notes:
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.
Examples:
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);
?>
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