Here's a script that'll enumerate on the constants and their values:

<?php
$constants = array(
    'CLSCTX_INPROC_SERVER', 'CLSCTX_INPROC_HANDLER', 'CLSCTX_LOCAL_SERVER', 'CLSCTX_REMOTE_SERVER',
    'CLSCTX_ALL', 'VT_NULL', 'VT_EMPTY', 'VT_UI1', 'VT_I2', 'VT_I4', 'VT_R4', 'VT_R8', 'VT_BOOL',
    'VT_ERROR', 'VT_CY', 'VT_DATE', 'VT_BSTR', 'VT_DECIMAL', 'VT_UNKNOWN', 'VT_DISPATCH', 'VT_VARIANT',
    'VT_I1', 'VT_UI2', 'VT_UI4', 'VT_INT', 'VT_UINT', 'VT_ARRAY', 'VT_BYREF', 'CP_ACP', 'CP_MACCP',
    'CP_OEMCP', 'CP_UTF7', 'CP_UTF8', 'CP_SYMBOL', 'CP_THREAD_ACP', 'VARCMP_LT', 'VARCMP_EQ',
    'VARCMP_GT', 'VARCMP_NULL', 'NORM_IGNORECASE', 'NORM_IGNORENONSPACE', 'NORM_IGNORESYMBOLS',
    'NORM_IGNOREWIDTH', 'NORM_IGNOREKANATYPE', 'NORM_IGNOREKASHIDA', 'DISP_E_DIVBYZERO',
    'DISP_E_OVERFLOW', 'MK_E_UNAVAILABLE'
);
foreach ($constants as $constant) {
    echo $constant . ' == ' . constant($constant) . '<br />';
}
?>

Note how NORM_IGNOREKASHIDA yields a "Couldn't find constant" warning.  At least it does for me...

This bug has been fixed in the documentation's XML sources. Since the
online and downloadable versions of the documentation need some time
to get updated, we would like to ask you to be a bit patient.

Thank you for the report, and for helping us make our documentation better.