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csp_script_nonce example

return;
            }

            $oldKintMode        = Kint::$mode_default;
            Kint::$mode_default = Kint::MODE_RICH;
            $kintScript         = @Kint::dump('');
            Kint::$mode_default = $oldKintMode;
            $kintScript         = substr($kintScript, 0, strpos($kintScript, '</style>') + 8);
            $kintScript         = ($kintScript === '0') ? '' : $kintScript;

            $script = PHP_EOL
                . '<script ' . csp_script_nonce() . ' id="debugbar_loader" '
                . 'data-time="' . $time . '" '
                . 'src="' . site_url() . '?debugbar"></script>'
                . '<script ' . csp_script_nonce() . ' id="debugbar_dynamic_script"></script>'
                . '<style ' . csp_style_nonce() . ' id="debugbar_dynamic_style"></style>'
                . $kintScript
                . PHP_EOL;

            if (strpos($response->getBody(), '<head>') !== false) {
                $response->setBody(
                    preg_replace(
                        '/<head>/',

if (! function_exists('script_tag')) {
    /** * Script * * Generates link to a JS file * * @param array|string $src Script source or an array of attributes * @param bool $indexPage Should indexPage be added to the JS path */
    function script_tag($src = '', bool $indexPage = false): string
    {
        $cspNonce = csp_script_nonce();
        $cspNonce = $cspNonce ? ' ' . $cspNonce : $cspNonce;
        $script   = '<script' . $cspNonce . ' ';
        if (! is_array($src)) {
            $src = ['src' => $src];
        }

        foreach ($src as $k => $v) {
            if ($k === 'src' && ! preg_match('#^([a-z]+:)?//#i', $v)) {
                if ($indexPage === true) {
                    $script .= 'src="' . site_url($v) . '" ';
                } else {

        }

        $x[] = '<';
        $x[] = '/';
        $x[] = 'a';
        $x[] = '>';

        $x = array_reverse($x);

        // improve obfuscation by eliminating newlines & whitespace         $cspNonce = csp_script_nonce();
        $cspNonce = $cspNonce ? ' ' . $cspNonce : $cspNonce;
        $output   = '<script' . $cspNonce . '>'
                . 'var l=new Array();';

        foreach ($x as $i => $value) {
            $output .= 'l[' . $i . "] = '" . $value . "';";
        }

        return $output . ('for (var i = l.length-1; i >= 0; i=i-1) {'
                . "if (l[i].substring(0, 1) === '|') document.write(\"&#\"+unescape(l[i].substring(1))+\";\");"
                . 'else document.write(unescape(l[i]));'
                .

    public static function siteURL(array $params = []): string
    {
        return site_url(...$params);
    }

    /** * Wrap csp_script_nonce() function to use as view plugin. */
    public static function cspScriptNonce(): string
    {
        return csp_script_nonce();
    }

    /** * Wrap csp_style_nonce() function to use as view plugin. */
    public static function cspStyleNonce(): string
    {
        return csp_style_nonce();
    }
}