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PHP Manual :: oci_field_is_null



oci_fetch || oci_field_name || OCI8 Functions || PHP Manual

(PHP 5, PHP 7, PECL OCI8 >= 1.1.0)

oci_field_is_nullChecks 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 ((
$row oci_fetch_array($stidOCI_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
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