extender.php

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<?php
function detect_extender_valuetype($value, $value_type = "") {
    if ($value_type != "" && ($value_type == 'integer' || $value_type == 'text')) {
        return $value_type;
    }

    // This is crude
    if (is_int($value)) {
        return 'integer';
    }
    // Catch floating point values which are not integer
    if (is_numeric($value)) {
        return 'text';
    }

    return 'text';
}