oci_field_is_null

Checks if a field in the currently fetched row is null

Description

bool oci_field_is_null(resource $statement, stringint $column)

Checks if the given column from the current row of statement is null.

Parameters

statement: A valid OCI statement identifier.
column: Can be the field's index (1-based) or name.

Return Values

Returns true if column 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);

?>