OCI_FIELD_IS_NULL(3) OCI_FIELD_IS_NULL(3)
oci_field_is_null - Checks if a field in the currently fetched row is NULL
SYNOPSIS
bool oci_field_is_null (resource $statement, mixed $field)
DESCRIPTION
Checks if the given $field from the current row of $statement is NULL.
PARAMETERS
o $statement
- A valid OCI statement identifier.
o $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(3) 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(3) instead. This name still can be used, it was left as alias of
oci_field_is_null(3) for downwards compatability. This, however, is deprecated and not recommended.
PHP Documentation Group OCI_FIELD_IS_NULL(3)
