gistfile1.txt

public static function getSvgIcon($path, $class = '', $svgClass = '') {
        $full_path = $path;
        if ( ! file_exists($path)) {
            return '<!-- SVG file not found; '.$path.' -->';
        }

        $svg_content = file_get_contents($path);

        $dom = new DOMDocument();
        $dom->loadXML($svg_content);

        // remove unwanted comments
        $xpath = new DOMXPath($dom);
        foreach ($xpath->query('//comment()') as $comment) {
            $comment->parentNode->removeChild($comment);
        }

        // add class to svg
        if ( ! empty($svgClass)) {
            foreach ($dom->getElementsByTagName('svg') as $element) {
                $element->setAttribute('class', $svgClass);
            }
        }

        // remove unwanted tags
        $title = $dom->getElementsByTagName('title');
        if ($title['length']) {
            $dom->documentElement->removeChild($title[0]);
        }
        $desc = $dom->getElementsByTagName('desc');
        if ($desc['length']) {
            $dom->documentElement->removeChild($desc[0]);
        }
        $defs = $dom->getElementsByTagName('defs');
        if ($defs['length']) {
            $dom->documentElement->removeChild($defs[0]);
        }

        // remove unwanted id attribute in g tag
        $g =  $dom->getElementsByTagName('g');
        foreach ($g as $el) {
            $el->removeAttribute('id');
        }
        $mask =  $dom->getElementsByTagName('mask');
        foreach ($mask as $el) {
            $el->removeAttribute('id');
        }
        $rect =  $dom->getElementsByTagName('rect');
        foreach ($rect as $el) {
            $el->removeAttribute('id');
        }
        $path =  $dom->getElementsByTagName('path');
        foreach ($path as $el) {
            $el->removeAttribute('id');
        }
        $circle =  $dom->getElementsByTagName('circle');
        foreach ($circle as $el) {
            $el->removeAttribute('id');
        }
        $use =  $dom->getElementsByTagName('use');
        foreach ($use as $el) {
            $el->removeAttribute('id');
        }
        $polygon =  $dom->getElementsByTagName('polygon');
        foreach ($polygon as $el) {
            $el->removeAttribute('id');
        }
        $ellipse =  $dom->getElementsByTagName('ellipse');
        foreach ($ellipse as $el) {
            $el->removeAttribute('id');
        }

        $string = $dom->saveXML($dom->documentElement);

        // remove empty lines
        $string = preg_replace("/(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+/", "\n", $string);

        $cls = array('svg-icon');

        if ( ! empty($class)) {
            $cls = array_merge($cls, explode(' ', $class));
        }

        return '<span class="' . implode(' ', $cls) . '"><!--begin::Svg Icon | path:' . $full_path . '-->' . $string . '<!--end::Svg Icon--></span>';
}